summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--.gitmodules3
-rw-r--r--conf.py4
-rwxr-xr-xmain.c7
-rw-r--r--ports/nrf/common-hal/microcontroller/Pin.c2
-rw-r--r--ports/stm32f4/.gitignore9
-rwxr-xr-xports/stm32f4/Makefile271
-rw-r--r--ports/stm32f4/README.md3
-rw-r--r--ports/stm32f4/background.c57
-rw-r--r--ports/stm32f4/background.h35
-rw-r--r--ports/stm32f4/boards/STM32F411VETx_FLASH.ld189
-rw-r--r--ports/stm32f4/boards/STM32F412ZGTx_FLASH.ld189
-rw-r--r--ports/stm32f4/boards/board.h45
-rw-r--r--ports/stm32f4/boards/startup_stm32f411xe.s452
-rw-r--r--ports/stm32f4/boards/startup_stm32f412zx.s524
-rw-r--r--ports/stm32f4/boards/stm32f411.ld189
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/board.c38
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.h38
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.mk13
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/pins.c90
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_conf.h439
-rw-r--r--ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_msp.c427
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/board.c38
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.h38
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.mk13
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/pins.c90
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_conf.h439
-rw-r--r--ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_msp.c832
-rw-r--r--ports/stm32f4/common-hal/board/__init__.c25
-rw-r--r--ports/stm32f4/common-hal/digitalio/DigitalInOut.c159
-rw-r--r--ports/stm32f4/common-hal/digitalio/DigitalInOut.h38
-rw-r--r--ports/stm32f4/common-hal/digitalio/__init__.c1
-rw-r--r--ports/stm32f4/common-hal/microcontroller/Pin.c81
-rw-r--r--ports/stm32f4/common-hal/microcontroller/Pin.h42
-rw-r--r--ports/stm32f4/common-hal/microcontroller/Processor.c44
-rw-r--r--ports/stm32f4/common-hal/microcontroller/Processor.h39
-rw-r--r--ports/stm32f4/common-hal/microcontroller/__init__.c191
-rw-r--r--ports/stm32f4/common-hal/nvm/ByteArray.c81
-rw-r--r--ports/stm32f4/common-hal/nvm/ByteArray.h36
-rw-r--r--ports/stm32f4/common-hal/nvm/__init__.c27
-rwxr-xr-xports/stm32f4/common-hal/supervisor/Runtime.c38
-rwxr-xr-xports/stm32f4/common-hal/supervisor/Runtime.h37
-rwxr-xr-xports/stm32f4/common-hal/supervisor/__init__.c40
-rw-r--r--ports/stm32f4/common-hal/time/__init__.c37
-rw-r--r--ports/stm32f4/fatfs_port.c33
-rw-r--r--ports/stm32f4/mpconfigport.h45
-rw-r--r--ports/stm32f4/mpconfigport.mk22
-rw-r--r--ports/stm32f4/mphalport.c52
-rw-r--r--ports/stm32f4/mphalport.h45
-rw-r--r--ports/stm32f4/peripherals/stm32f4/clocks.h27
-rw-r--r--ports/stm32f4/peripherals/stm32f4/gpio.h27
-rw-r--r--ports/stm32f4/peripherals/stm32f4/pins.h73
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f411xe/clocks.c63
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c137
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.c33
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.h36
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f412zx/clocks.c75
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f412zx/gpio.c218
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.c159
-rw-r--r--ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.h156
-rw-r--r--ports/stm32f4/qstrdefsport.h1
m---------ports/stm32f4/stm32f40
-rwxr-xr-xports/stm32f4/supervisor/cpu.s27
-rw-r--r--ports/stm32f4/supervisor/internal_flash.c73
-rw-r--r--ports/stm32f4/supervisor/internal_flash.h37
-rw-r--r--ports/stm32f4/supervisor/internal_flash_root_pointers.h31
-rw-r--r--ports/stm32f4/supervisor/port.c80
-rw-r--r--ports/stm32f4/supervisor/qspi_flash.c162
-rw-r--r--ports/stm32f4/supervisor/serial.c75
-rw-r--r--ports/stm32f4/supervisor/usb.c80
-rw-r--r--ports/stm32f4/system_stm32f4xx.c761
-rw-r--r--ports/stm32f4/tick.c85
-rw-r--r--ports/stm32f4/tick.h46
-rw-r--r--py/circuitpy_mpconfig.mk53
-rw-r--r--shared-module/board/__init__.c12
-rw-r--r--supervisor/shared/status_leds.c2
75 files changed, 8089 insertions, 27 deletions
diff --git a/.gitmodules b/.gitmodules
index 163d45fcd..7b57cab54 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -95,3 +95,6 @@
[submodule "frozen/circuitpython-stage"]
path = frozen/circuitpython-stage
url = https://github.com/python-ugame/circuitpython-stage.git
+[submodule "ports/stm32f4/stm32f4"]
+ path = ports/stm32f4/stm32f4
+ url = https://github.com/adafruit/stm32f4.git
diff --git a/conf.py b/conf.py
index 6b0f40da6..59e19a513 100644
--- a/conf.py
+++ b/conf.py
@@ -122,6 +122,10 @@ exclude_patterns = ["**/build*",
"ports/nrf/nrfx",
"ports/nrf/peripherals",
"ports/nrf/usb",
+ "ports/stm32f4/stm32f4",
+ "ports/stm32f4/peripherals",
+ "ports/stm32f4/ref",
+ "ports/stm32f4/README.md",
"ports/pic16bit",
"ports/qemu-arm",
"ports/stm32",
diff --git a/main.c b/main.c
index 6d7502ba4..6ab50fc3c 100755
--- a/main.c
+++ b/main.c
@@ -45,7 +45,6 @@
#include "background.h"
#include "mpconfigboard.h"
-#include "shared-module/displayio/__init__.h"
#include "supervisor/cpu.h"
#include "supervisor/memory.h"
#include "supervisor/port.h"
@@ -58,6 +57,10 @@
#include "supervisor/shared/stack.h"
#include "supervisor/serial.h"
+#if CIRCUITPY_DISPLAYIO
+#include "shared-module/displayio/__init__.h"
+#endif
+
#if CIRCUITPY_NETWORK
#include "shared-module/network/__init__.h"
#endif
@@ -187,7 +190,9 @@ void cleanup_after_vm(supervisor_allocation* heap) {
supervisor_move_memory();
reset_port();
+ #if CIRCUITPY_BOARD
reset_board_busses();
+ #endif
reset_board();
reset_status_led();
}
diff --git a/ports/nrf/common-hal/microcontroller/Pin.c b/ports/nrf/common-hal/microcontroller/Pin.c
index b9c0ecaca..3cee784b6 100644
--- a/ports/nrf/common-hal/microcontroller/Pin.c
+++ b/ports/nrf/common-hal/microcontroller/Pin.c
@@ -105,7 +105,7 @@ void reset_pin_number(uint8_t pin_number) {
#ifdef SPEAKER_ENABLE_PIN
if (pin_number == SPEAKER_ENABLE_PIN->number) {
speaker_enable_in_use = false;
- common_hal_digitalio_digitalinout_switch_to_output(
+ common_hal_digitalio_digitalinout_switch_to_output(SPEAKER_ENABLE_PIN, true, DRIVE_MODE_PUSH_PULL);
nrf_gpio_pin_dir_set(pin_number, NRF_GPIO_PIN_DIR_OUTPUT);
nrf_gpio_pin_write(pin_number, false);
}
diff --git a/ports/stm32f4/.gitignore b/ports/stm32f4/.gitignore
new file mode 100644
index 000000000..3080ece14
--- /dev/null
+++ b/ports/stm32f4/.gitignore
@@ -0,0 +1,9 @@
+# Build files
+#####################
+build-*/
+
+# Reference files
+#####################
+ref/
+
+.gdb_history \ No newline at end of file
diff --git a/ports/stm32f4/Makefile b/ports/stm32f4/Makefile
new file mode 100755
index 000000000..7f0744443
--- /dev/null
+++ b/ports/stm32f4/Makefile
@@ -0,0 +1,271 @@
+# This file is part of the MicroPython project, http://micropython.org/
+#
+# The MIT License (MIT)
+#
+# Copyright (c) 2019 Dan Halbert for Adafruit Industries
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+DEBUG = 1
+
+# Select the board to build for.
+ifeq ($(BOARD),)
+ $(error You must provide a BOARD parameter)
+else
+ ifeq ($(wildcard boards/$(BOARD)/.),)
+ $(error Invalid BOARD specified)
+ endif
+endif
+
+# If the build directory is not given, make it reflect the board name.
+BUILD ?= build-$(BOARD)
+
+include ../../py/mkenv.mk
+# Board-specific
+include boards/$(BOARD)/mpconfigboard.mk
+# Port-specific
+include mpconfigport.mk
+
+# CircuitPython-specific
+include $(TOP)/py/circuitpy_mpconfig.mk
+
+# qstr definitions (must come before including py.mk)
+QSTR_DEFS = qstrdefsport.h
+
+# include py core make definitions
+include $(TOP)/py/py.mk
+
+include $(TOP)/supervisor/supervisor.mk
+
+# Include make rules and variables common across CircuitPython builds.
+include $(TOP)/py/circuitpy_defns.mk
+
+CROSS_COMPILE = arm-none-eabi-
+
+#######################################
+# CFLAGS
+#######################################
+
+INC += -I.
+INC += -I../..
+INC += -I$(BUILD)
+INC += -I$(BUILD)/genhdr
+INC += -I./stm32f4/STM32F4xx_HAL_Driver/Inc
+INC += -I./stm32f4/STM32F4xx_HAL_Driver/Inc/Legacy
+INC += -I./stm32f4/CMSIS/Device/ST/STM32F4xx/Include
+INC += -I./stm32f4/CMSIS/Include
+INC += -I./boards
+INC += -I./boards/$(BOARD)
+INC += -I./peripherals
+INC += -I../../lib/mp-readline
+INC += -I../../lib/tinyusb/src
+INC += -I../../supervisor/shared/usb
+
+
+#Debugging/Optimization
+ifeq ($(DEBUG), 1)
+ CFLAGS += -ggdb
+ # You may want to enable these flags to make setting breakpoints easier.
+ CFLAGS += -fno-inline -fno-ipa-sra
+else
+ CFLAGS += -Os -DNDEBUG
+ # TODO: Test with -flto
+ ### CFLAGS += -flto
+endif
+
+# C defines and other board specifics
+ifeq ($(MCU_SUB_VARIANT), stm32f412zx)
+C_DEFS = \
+ -DUSE_FULL_LL_DRIVER \
+ -DUSE_HAL_DRIVER \
+ -DSTM32F412Zx
+endif
+
+ifeq ($(MCU_SUB_VARIANT), stm32f411xe)
+C_DEFS = \
+ -DUSE_HAL_DRIVER \
+ -DSTM32F411xE
+endif
+
+#TODO: Add ASM Flags? -Werror
+CFLAGS += $(INC) -Wall -std=gnu11 -nostdlib $(BASE_CFLAGS) $(C_DEFS) $(CFLAGS_MOD) $(COPT)
+
+# Undo some warnings.
+# STM32 apparently also uses undefined preprocessor variables quite casually,
+# so we can't do warning checks for these.
+CFLAGS += -Wno-undef
+# STM32 might do casts that increase alignment requirements.
+CFLAGS += -Wno-cast-align
+
+CFLAGS += \
+ -mthumb \
+ -mabi=aapcs-linux \
+ -mfloat-abi=hard \
+ -mcpu=cortex-m4 \
+ -mfpu=fpv4-sp-d16
+
+# TODO: check this
+CFLAGS += -D__START=main
+
+LDFLAGS = $(CFLAGS) -fshort-enums -Wl,-nostdlib -Wl,-T,$(LD_FILE) -Wl,-Map=$@.map -Wl,-cref -Wl,-gc-sections -specs=nano.specs
+LIBS := -lgcc -lc
+
+LDFLAGS += -mthumb -mcpu=cortex-m4
+
+# Use toolchain libm if we're not using our own.
+ifndef INTERNAL_LIBM
+LIBS += -lm
+endif
+
+# TinyUSB defines
+CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_STM32F4 -DCFG_TUD_CDC_RX_BUFSIZE=1024 -DCFG_TUD_CDC_TX_BUFSIZE=1024 -DCFG_TUD_MSC_BUFSIZE=4096 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128
+
+
+######################################
+# source
+######################################
+
+SRC_STM32 = \
+ boards/$(BOARD)/stm32f4xx_hal_msp.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_gpio.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_i2c.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dma.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usart.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_rcc.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_utils.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_exti.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c \
+ stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_exti.c \
+ system_stm32f4xx.c
+
+SRC_C += \
+ background.c \
+ fatfs_port.c \
+ mphalport.c \
+ tick.c \
+ boards/$(BOARD)/board.c \
+ peripherals/stm32f4/$(MCU_SUB_VARIANT)/clocks.c \
+ peripherals/stm32f4/$(MCU_SUB_VARIANT)/gpio.c \
+ lib/libc/string0.c \
+ lib/mp-readline/readline.c \
+ lib/oofatfs/ff.c \
+ lib/oofatfs/option/ccsbcs.c \
+ lib/timeutils/timeutils.c \
+ lib/utils/buffer_helper.c \
+ lib/utils/context_manager_helpers.c \
+ lib/utils/interrupt_char.c \
+ lib/utils/pyexec.c \
+ lib/utils/stdout_helpers.c \
+ lib/utils/sys_stdio_mphal.c \
+ supervisor/shared/memory.c
+
+ifneq ($(USB),FALSE)
+SRC_C += lib/tinyusb/src/portable/st/stm32f4/dcd_stm32f4.c
+endif
+
+ifeq ($(MCU_SUB_VARIANT), stm32f412zx)
+SRC_C += peripherals/stm32f4/stm32f412zx/pins.c
+SRC_C += boards/$(BOARD)/pins.c
+endif
+
+SRC_S = \
+ supervisor/cpu.s \
+ boards/startup_$(MCU_SUB_VARIANT).s
+
+SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
+ $(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
+ $(addprefix common-hal/, $(SRC_COMMON_HAL))
+
+SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
+ $(addprefix shared-module/, $(SRC_SHARED_MODULE))
+
+
+
+FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py')
+FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/,$(FROZEN_MPY_PY_FILES:.py=.mpy))
+
+OBJ += $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_STM32:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_EXPANDED:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_SHARED_MODULE_EXPANDED:.c=.o))
+ifeq ($(INTERNAL_LIBM),1)
+OBJ += $(addprefix $(BUILD)/, $(SRC_LIBM:.c=.o))
+endif
+OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
+
+$(BUILD)/$(FATFS_DIR)/ff.o: COPT += -Os
+$(filter $(PY_BUILD)/../extmod/vfs_fat_%.o, $(PY_O)): COPT += -Os
+
+# List of sources for qstr extraction
+SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_MOD) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
+# Sources that only hold QSTRs after pre-processing.
+SRC_QSTR_PREPROCESSOR +=
+
+
+all: $(BUILD)/firmware.bin $(BUILD)/firmware.uf2
+
+$(BUILD)/firmware.elf: $(OBJ)
+ $(STEPECHO) "LINK $@"
+ $(Q)$(CC) -o $@ $(LDFLAGS) $^ -Wl,--start-group $(LIBS) -Wl,--end-group
+ $(Q)$(SIZE) $@ | $(PYTHON3) $(TOP)/tools/build_memory_info.py $(LD_FILE)
+
+$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
+ $(STEPECHO) "Create $@"
+ $(Q)$(OBJCOPY) -O binary $^ $@
+# $(Q)$(OBJCOPY) -O binary -j .vectors -j .text -j .data $^ $@
+
+$(BUILD)/firmware.hex: $(BUILD)/firmware.elf
+ $(STEPECHO) "Create $@"
+ $(Q)$(OBJCOPY) -O ihex $^ $@
+# $(Q)$(OBJCOPY) -O ihex -j .vectors -j .text -j .data $^ $@
+
+$(BUILD)/firmware.uf2: $(BUILD)/firmware.hex
+ $(ECHO) "Create $@"
+ $(PYTHON3) $(TOP)/tools/uf2/utils/uf2conv.py -f 0xADA52840 -c -o "$(BUILD)/firmware.uf2" $^
+
+include $(TOP)/py/mkrules.mk
+
+# Print out the value of a make variable.
+# https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
+print-%:
+ @echo $* = $($*)
diff --git a/ports/stm32f4/README.md b/ports/stm32f4/README.md
new file mode 100644
index 000000000..a860c01ce
--- /dev/null
+++ b/ports/stm32f4/README.md
@@ -0,0 +1,3 @@
+# CircuitPython Port To The ST Microelectronics STM32F4 Series
+
+This is a port of CircuitPython to the STM32F4 series of chips.
diff --git a/ports/stm32f4/background.c b/ports/stm32f4/background.c
new file mode 100644
index 000000000..e9872b045
--- /dev/null
+++ b/ports/stm32f4/background.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/runtime.h"
+#include "supervisor/filesystem.h"
+#include "supervisor/usb.h"
+#include "supervisor/shared/stack.h"
+
+#if CIRCUITPY_DISPLAYIO
+#include "shared-module/displayio/__init__.h"
+#endif
+
+static bool running_background_tasks = false;
+
+void background_tasks_reset(void) {
+ running_background_tasks = false;
+}
+
+void run_background_tasks(void) {
+ // Don't call ourselves recursively.
+ if (running_background_tasks) {
+ return;
+ }
+ running_background_tasks = true;
+ filesystem_background();
+ //usb_background();
+
+ #if CIRCUITPY_DISPLAYIO
+ displayio_refresh_displays();
+ #endif
+ running_background_tasks = false;
+
+ assert_heap_ok();
+}
diff --git a/ports/stm32f4/background.h b/ports/stm32f4/background.h
new file mode 100644
index 000000000..05a4f894a
--- /dev/null
+++ b/ports/stm32f4/background.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_BACKGROUND_H
+#define MICROPY_INCLUDED_STM32F4_BACKGROUND_H
+
+#include <stdbool.h>
+
+void background_tasks_reset(void);
+void run_background_tasks(void);
+
+#endif // MICROPY_INCLUDED_STM32F4_BACKGROUND_H
diff --git a/ports/stm32f4/boards/STM32F411VETx_FLASH.ld b/ports/stm32f4/boards/STM32F411VETx_FLASH.ld
new file mode 100644
index 000000000..a3c3594a9
--- /dev/null
+++ b/ports/stm32f4/boards/STM32F411VETx_FLASH.ld
@@ -0,0 +1,189 @@
+/*
+******************************************************************************
+**
+
+** File : LinkerScript.ld
+**
+** Author : Auto-generated by Ac6 System Workbench
+**
+** Abstract : Linker script for STM32F411VETx series
+** 512Kbytes FLASH and 128Kbytes RAM
+**
+** Set heap size, stack size and stack location according
+** to application requirements.
+**
+** Set memory bank area and size if external memory is used.
+**
+** Target : STMicroelectronics STM32
+**
+** Distribution: The file is distributed “as is,” without any warranty
+** of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2014 Ac6</center></h2>
+**
+** Redistribution and use in source and binary forms, with or without modification,
+** are permitted provided that the following conditions are met:
+** 1. Redistributions of source code must retain the above copyright notice,
+** this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright notice,
+** this list of conditions and the following disclaimer in the documentation
+** and/or other materials provided with the distribution.
+** 3. Neither the name of Ac6 nor the names of its contributors
+** may be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20020000; /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200; /* required amount of heap */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
+FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 512K
+}
+
+/* Define output sections */
+SECTIONS
+{
+ /* The startup code goes first into FLASH */
+ .isr_vector :
+ {
+ . = ALIGN(4);
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ } >FLASH
+
+ /* The program code and other data goes into FLASH */
+ .text :
+ {
+ . = ALIGN(4);
+ *(.text) /* .text sections (code) */
+ *(.text*) /* .text* sections (code) */
+ *(.glue_7) /* glue arm to thumb code */
+ *(.glue_7t) /* glue thumb to arm code */
+ *(.eh_frame)
+
+ KEEP (*(.init))
+ KEEP (*(.fini))
+
+ . = ALIGN(4);
+ _etext = .; /* define a global symbols at end of code */
+ } >FLASH
+
+ /* Constant data goes into FLASH */
+ .rodata :
+ {
+ . = ALIGN(4);
+ *(.rodata) /* .rodata sections (constants, strings, etc.) */
+ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
+ . = ALIGN(4);
+ } >FLASH
+
+ .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+ .ARM : {
+ __exidx_start = .;
+ *(.ARM.exidx*)
+ __exidx_end = .;
+ } >FLASH
+
+ .preinit_array :
+ {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array*))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ } >FLASH
+ .init_array :
+ {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array*))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ } >FLASH
+ .fini_array :
+ {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array*))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ } >FLASH
+
+ /* used by the startup to initialize data */
+ _sidata = LOADADDR(.data);
+
+ /* Initialized data sections goes into RAM, load LMA copy after code */
+ .data :
+ {
+ . = ALIGN(4);
+ _sdata = .; /* create a global symbol at data start */
+ *(.data) /* .data sections */
+ *(.data*) /* .data* sections */
+
+ . = ALIGN(4);
+ _edata = .; /* define a global symbol at data end */
+ } >RAM AT> FLASH
+
+
+ /* Uninitialized data section */
+ . = ALIGN(4);
+ .bss :
+ {
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .; /* define a global symbol at bss start */
+ __bss_start__ = _sbss;
+ *(.bss)
+ *(.bss*)
+ *(COMMON)
+
+ . = ALIGN(4);
+ _ebss = .; /* define a global symbol at bss end */
+ __bss_end__ = _ebss;
+ } >RAM
+
+ /* User_heap_stack section, used to check that there is enough RAM left */
+ ._user_heap_stack :
+ {
+ . = ALIGN(8);
+ PROVIDE ( end = . );
+ PROVIDE ( _end = . );
+ . = . + _Min_Heap_Size;
+ . = . + _Min_Stack_Size;
+ . = ALIGN(8);
+ } >RAM
+
+
+
+ /* Remove information from the standard libraries */
+ /DISCARD/ :
+ {
+ libc.a ( * )
+ libm.a ( * )
+ libgcc.a ( * )
+ }
+
+ .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/ports/stm32f4/boards/STM32F412ZGTx_FLASH.ld b/ports/stm32f4/boards/STM32F412ZGTx_FLASH.ld
new file mode 100644
index 000000000..da1efdecc
--- /dev/null
+++ b/ports/stm32f4/boards/STM32F412ZGTx_FLASH.ld
@@ -0,0 +1,189 @@
+/*
+******************************************************************************
+**
+
+** File : LinkerScript.ld
+**
+** Author : Auto-generated by Ac6 System Workbench
+**
+** Abstract : Linker script for STM32F412ZGTx series
+** 1024Kbytes FLASH and 256Kbytes RAM
+**
+** Set heap size, stack size and stack location according
+** to application requirements.
+**
+** Set memory bank area and size if external memory is used.
+**
+** Target : STMicroelectronics STM32
+**
+** Distribution: The file is distributed “as is,” without any warranty
+** of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2014 Ac6</center></h2>
+**
+** Redistribution and use in source and binary forms, with or without modification,
+** are permitted provided that the following conditions are met:
+** 1. Redistributions of source code must retain the above copyright notice,
+** this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright notice,
+** this list of conditions and the following disclaimer in the documentation
+** and/or other materials provided with the distribution.
+** 3. Neither the name of Ac6 nor the names of its contributors
+** may be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20040000; /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200; /* required amount of heap */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K
+FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K
+}
+
+/* Define output sections */
+SECTIONS
+{
+ /* The startup code goes first into FLASH */
+ .isr_vector :
+ {
+ . = ALIGN(4);
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ } >FLASH
+
+ /* The program code and other data goes into FLASH */
+ .text :
+ {
+ . = ALIGN(4);
+ *(.text) /* .text sections (code) */
+ *(.text*) /* .text* sections (code) */
+ *(.glue_7) /* glue arm to thumb code */
+ *(.glue_7t) /* glue thumb to arm code */
+ *(.eh_frame)
+
+ KEEP (*(.init))
+ KEEP (*(.fini))
+
+ . = ALIGN(4);
+ _etext = .; /* define a global symbols at end of code */
+ } >FLASH
+
+ /* Constant data goes into FLASH */
+ .rodata :
+ {
+ . = ALIGN(4);
+ *(.rodata) /* .rodata sections (constants, strings, etc.) */
+ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
+ . = ALIGN(4);
+ } >FLASH
+
+ .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+ .ARM : {
+ __exidx_start = .;
+ *(.ARM.exidx*)
+ __exidx_end = .;
+ } >FLASH
+
+ .preinit_array :
+ {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array*))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ } >FLASH
+ .init_array :
+ {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array*))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ } >FLASH
+ .fini_array :
+ {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array*))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ } >FLASH
+
+ /* used by the startup to initialize data */
+ _sidata = LOADADDR(.data);
+
+ /* Initialized data sections goes into RAM, load LMA copy after code */
+ .data :
+ {
+ . = ALIGN(4);
+ _sdata = .; /* create a global symbol at data start */
+ *(.data) /* .data sections */
+ *(.data*) /* .data* sections */
+
+ . = ALIGN(4);
+ _edata = .; /* define a global symbol at data end */
+ } >RAM AT> FLASH
+
+
+ /* Uninitialized data section */
+ . = ALIGN(4);
+ .bss :
+ {
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .; /* define a global symbol at bss start */
+ __bss_start__ = _sbss;
+ *(.bss)
+ *(.bss*)
+ *(COMMON)
+
+ . = ALIGN(4);
+ _ebss = .; /* define a global symbol at bss end */
+ __bss_end__ = _ebss;
+ } >RAM
+
+ /* User_heap_stack section, used to check that there is enough RAM left */
+ ._user_heap_stack :
+ {
+ . = ALIGN(8);
+ PROVIDE ( end = . );
+ PROVIDE ( _end = . );
+ . = . + _Min_Heap_Size;
+ . = . + _Min_Stack_Size;
+ . = ALIGN(8);
+ } >RAM
+
+
+
+ /* Remove information from the standard libraries */
+ /DISCARD/ :
+ {
+ libc.a ( * )
+ libm.a ( * )
+ libgcc.a ( * )
+ }
+
+ .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/ports/stm32f4/boards/board.h b/ports/stm32f4/boards/board.h
new file mode 100644
index 000000000..22d9e99be
--- /dev/null
+++ b/ports/stm32f4/boards/board.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// This file defines board specific functions.
+
+#ifndef MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H
+#define MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H
+
+#include <stdbool.h>
+
+// Initializes board related state once on start up.
+void board_init(void);
+
+// Returns true if the user initiates safe mode in a board specific way.
+// Also add BOARD_USER_SAFE_MODE in mpconfigboard.h to explain the board specific
+// way.
+bool board_requests_safe_mode(void);
+
+// Reset the state of off MCU components such as neopixels.
+void reset_board(void);
+
+#endif // MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H
diff --git a/ports/stm32f4/boards/startup_stm32f411xe.s b/ports/stm32f4/boards/startup_stm32f411xe.s
new file mode 100644
index 000000000..3aac640cb
--- /dev/null
+++ b/ports/stm32f4/boards/startup_stm32f411xe.s
@@ -0,0 +1,452 @@
+/**
+ ******************************************************************************
+ * @file startup_stm32f411xe.s
+ * @author MCD Application Team
+ * @brief STM32F411xExx Devices vector table for GCC based toolchains.
+ * This module performs:
+ * - Set the initial SP
+ * - Set the initial PC == Reset_Handler,
+ * - Set the vector table entries with the exceptions ISR address
+ * - Branches to main in the C library (which eventually
+ * calls main()).
+ * After Reset the Cortex-M4 processor is in Thread mode,
+ * priority is Privileged, and the Stack is set to Main.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+ .syntax unified
+ .cpu cortex-m4
+ .fpu softvfp
+ .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
+
+/**
+ * @brief This is the code that gets called when the processor first
+ * starts execution following a reset event. Only the absolutely
+ * necessary set is performed, after which the application
+ * supplied main() routine is called.
+ * @param None
+ * @retval : None
+*/
+
+ .section .text.Reset_Handler
+ .weak Reset_Handler
+ .type Reset_Handler, %function
+Reset_Handler:
+ ldr sp, =_estack /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+ movs r1, #0
+ b LoopCopyDataInit
+
+CopyDataInit:
+ ldr r3, =_sidata
+ ldr r3, [r3, r1]
+ str r3, [r0, r1]
+ adds r1, r1, #4
+
+LoopCopyDataInit:
+ ldr r0, =_sdata
+ ldr r3, =_edata
+ adds r2, r0, r1
+ cmp r2, r3
+ bcc CopyDataInit
+ ldr r2, =_sbss
+ b LoopFillZerobss
+/* Zero fill the bss segment. */
+FillZerobss:
+ movs r3, #0
+ str r3, [r2], #4
+
+LoopFillZerobss:
+ ldr r3, = _ebss
+ cmp r2, r3
+ bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+ bl SystemInit
+/* Call static constructors */
+/* bl __libc_init_array */
+/* Call the application's entry point.*/
+ bl main
+ bx lr
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief This is the code that gets called when the processor receives an
+ * unexpected interrupt. This simply enters an infinite loop, preserving
+ * the system state for examination by a debugger.
+ * @param None
+ * @retval None
+*/
+ .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+ b Infinite_Loop
+ .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M3. Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+*******************************************************************************/
+ .section .isr_vector,"a",%progbits
+ .type g_pfnVectors, %object
+ .size g_pfnVectors, .-g_pfnVectors
+
+g_pfnVectors:
+ .word _estack
+ .word Reset_Handler
+ .word NMI_Handler
+ .word HardFault_Handler
+ .word MemManage_Handler
+ .word BusFault_Handler
+ .word UsageFault_Handler
+ .word 0
+ .word 0
+ .word 0
+ .word 0
+ .word SVC_Handler
+ .word DebugMon_Handler
+ .word 0
+ .word PendSV_Handler
+ .word SysTick_Handler
+
+ /* External Interrupts */
+ .word WWDG_IRQHandler /* Window WatchDog */
+ .word PVD_IRQHandler /* PVD through EXTI Line detection */
+ .word TAMP_STAMP_IRQHandler /* Tamper and TimeStamps through the EXTI line */
+ .word RTC_WKUP_IRQHandler /* RTC Wakeup through the EXTI line */
+ .word FLASH_IRQHandler /* FLASH */
+ .word RCC_IRQHandler /* RCC */
+ .word EXTI0_IRQHandler /* EXTI Line0 */
+ .word EXTI1_IRQHandler /* EXTI Line1 */
+ .word EXTI2_IRQHandler /* EXTI Line2 */
+ .word EXTI3_IRQHandler /* EXTI Line3 */
+ .word EXTI4_IRQHandler /* EXTI Line4 */
+ .word DMA1_Stream0_IRQHandler /* DMA1 Stream 0 */
+ .word DMA1_Stream1_IRQHandler /* DMA1 Stream 1 */
+ .word DMA1_Stream2_IRQHandler /* DMA1 Stream 2 */
+ .word DMA1_Stream3_IRQHandler /* DMA1 Stream 3 */
+ .word DMA1_Stream4_IRQHandler /* DMA1 Stream 4 */
+ .word DMA1_Stream5_IRQHandler /* DMA1 Stream 5 */
+ .word DMA1_Stream6_IRQHandler /* DMA1 Stream 6 */
+ .word ADC_IRQHandler /* ADC1, ADC2 and ADC3s */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word EXTI9_5_IRQHandler /* External Line[9:5]s */
+ .word TIM1_BRK_TIM9_IRQHandler /* TIM1 Break and TIM9 */
+ .word TIM1_UP_TIM10_IRQHandler /* TIM1 Update and TIM10 */
+ .word TIM1_TRG_COM_TIM11_IRQHandler /* TIM1 Trigger and Commutation and TIM11 */
+ .word TIM1_CC_IRQHandler /* TIM1 Capture Compare */
+ .word TIM2_IRQHandler /* TIM2 */
+ .word TIM3_IRQHandler /* TIM3 */
+ .word TIM4_IRQHandler /* TIM4 */
+ .word I2C1_EV_IRQHandler /* I2C1 Event */
+ .word I2C1_ER_IRQHandler /* I2C1 Error */
+ .word I2C2_EV_IRQHandler /* I2C2 Event */
+ .word I2C2_ER_IRQHandler /* I2C2 Error */
+ .word SPI1_IRQHandler /* SPI1 */
+ .word SPI2_IRQHandler /* SPI2 */
+ .word USART1_IRQHandler /* USART1 */
+ .word USART2_IRQHandler /* USART2 */
+ .word 0 /* Reserved */
+ .word EXTI15_10_IRQHandler /* External Line[15:10]s */
+ .word RTC_Alarm_IRQHandler /* RTC Alarm (A and B) through EXTI Line */
+ .word OTG_FS_WKUP_IRQHandler /* USB OTG FS Wakeup through EXTI line */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word DMA1_Stream7_IRQHandler /* DMA1 Stream7 */
+ .word 0 /* Reserved */
+ .word SDIO_IRQHandler /* SDIO */
+ .word TIM5_IRQHandler /* TIM5 */
+ .word SPI3_IRQHandler /* SPI3 */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word DMA2_Stream0_IRQHandler /* DMA2 Stream 0 */
+ .word DMA2_Stream1_IRQHandler /* DMA2 Stream 1 */
+ .word DMA2_Stream2_IRQHandler /* DMA2 Stream 2 */
+ .word DMA2_Stream3_IRQHandler /* DMA2 Stream 3 */
+ .word DMA2_Stream4_IRQHandler /* DMA2 Stream 4 */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word OTG_FS_IRQHandler /* USB OTG FS */
+ .word DMA2_Stream5_IRQHandler /* DMA2 Stream 5 */
+ .word DMA2_Stream6_IRQHandler /* DMA2 Stream 6 */
+ .word DMA2_Stream7_IRQHandler /* DMA2 Stream 7 */
+ .word USART6_IRQHandler /* USART6 */
+ .word I2C3_EV_IRQHandler /* I2C3 event */
+ .word I2C3_ER_IRQHandler /* I2C3 error */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word FPU_IRQHandler /* FPU */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word SPI4_IRQHandler /* SPI4 */
+ .word SPI5_IRQHandler /* SPI5 */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+ .weak NMI_Handler
+ .thumb_set NMI_Handler,Default_Handler
+
+ .weak HardFault_Handler
+ .thumb_set HardFault_Handler,Default_Handler
+
+ .weak MemManage_Handler
+ .thumb_set MemManage_Handler,Default_Handler
+
+ .weak BusFault_Handler
+ .thumb_set BusFault_Handler,Default_Handler
+
+ .weak UsageFault_Handler
+ .thumb_set UsageFault_Handler,Default_Handler
+
+ .weak SVC_Handler
+ .thumb_set SVC_Handler,Default_Handler
+
+ .weak DebugMon_Handler
+ .thumb_set DebugMon_Handler,Default_Handler
+
+ .weak PendSV_Handler
+ .thumb_set PendSV_Handler,Default_Handler
+
+ .weak SysTick_Handler
+ .thumb_set SysTick_Handler,Default_Handler
+
+ .weak WWDG_IRQHandler
+ .thumb_set WWDG_IRQHandler,Default_Handler
+
+ .weak PVD_IRQHandler
+ .thumb_set PVD_IRQHandler,Default_Handler
+
+ .weak TAMP_STAMP_IRQHandler
+ .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
+
+ .weak RTC_WKUP_IRQHandler
+ .thumb_set RTC_WKUP_IRQHandler,Default_Handler
+
+ .weak FLASH_IRQHandler
+ .thumb_set FLASH_IRQHandler,Default_Handler
+
+ .weak RCC_IRQHandler
+ .thumb_set RCC_IRQHandler,Default_Handler
+
+ .weak EXTI0_IRQHandler
+ .thumb_set EXTI0_IRQHandler,Default_Handler
+
+ .weak EXTI1_IRQHandler
+ .thumb_set EXTI1_IRQHandler,Default_Handler
+
+ .weak EXTI2_IRQHandler
+ .thumb_set EXTI2_IRQHandler,Default_Handler
+
+ .weak EXTI3_IRQHandler
+ .thumb_set EXTI3_IRQHandler,Default_Handler
+
+ .weak EXTI4_IRQHandler
+ .thumb_set EXTI4_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream0_IRQHandler
+ .thumb_set DMA1_Stream0_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream1_IRQHandler
+ .thumb_set DMA1_Stream1_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream2_IRQHandler
+ .thumb_set DMA1_Stream2_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream3_IRQHandler
+ .thumb_set DMA1_Stream3_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream4_IRQHandler
+ .thumb_set DMA1_Stream4_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream5_IRQHandler
+ .thumb_set DMA1_Stream5_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream6_IRQHandler
+ .thumb_set DMA1_Stream6_IRQHandler,Default_Handler
+
+ .weak ADC_IRQHandler
+ .thumb_set ADC_IRQHandler,Default_Handler
+
+ .weak EXTI9_5_IRQHandler
+ .thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+ .weak TIM1_BRK_TIM9_IRQHandler
+ .thumb_set TIM1_BRK_TIM9_IRQHandler,Default_Handler
+
+ .weak TIM1_UP_TIM10_IRQHandler
+ .thumb_set TIM1_UP_TIM10_IRQHandler,Default_Handler
+
+ .weak TIM1_TRG_COM_TIM11_IRQHandler
+ .thumb_set TIM1_TRG_COM_TIM11_IRQHandler,Default_Handler
+
+ .weak TIM1_CC_IRQHandler
+ .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+ .weak TIM2_IRQHandler
+ .thumb_set TIM2_IRQHandler,Default_Handler
+
+ .weak TIM3_IRQHandler
+ .thumb_set TIM3_IRQHandler,Default_Handler
+
+ .weak TIM4_IRQHandler
+ .thumb_set TIM4_IRQHandler,Default_Handler
+
+ .weak I2C1_EV_IRQHandler
+ .thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+ .weak I2C1_ER_IRQHandler
+ .thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+ .weak I2C2_EV_IRQHandler
+ .thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+ .weak I2C2_ER_IRQHandler
+ .thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+ .weak SPI1_IRQHandler
+ .thumb_set SPI1_IRQHandler,Default_Handler
+
+ .weak SPI2_IRQHandler
+ .thumb_set SPI2_IRQHandler,Default_Handler
+
+ .weak USART1_IRQHandler
+ .thumb_set USART1_IRQHandler,Default_Handler
+
+ .weak USART2_IRQHandler
+ .thumb_set USART2_IRQHandler,Default_Handler
+
+ .weak EXTI15_10_IRQHandler
+ .thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+ .weak RTC_Alarm_IRQHandler
+ .thumb_set RTC_Alarm_IRQHandler,Default_Handler
+
+ .weak OTG_FS_WKUP_IRQHandler
+ .thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream7_IRQHandler
+ .thumb_set DMA1_Stream7_IRQHandler,Default_Handler
+
+ .weak SDIO_IRQHandler
+ .thumb_set SDIO_IRQHandler,Default_Handler
+
+ .weak TIM5_IRQHandler
+ .thumb_set TIM5_IRQHandler,Default_Handler
+
+ .weak SPI3_IRQHandler
+ .thumb_set SPI3_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream0_IRQHandler
+ .thumb_set DMA2_Stream0_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream1_IRQHandler
+ .thumb_set DMA2_Stream1_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream2_IRQHandler
+ .thumb_set DMA2_Stream2_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream3_IRQHandler
+ .thumb_set DMA2_Stream3_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream4_IRQHandler
+ .thumb_set DMA2_Stream4_IRQHandler,Default_Handler
+
+ .weak OTG_FS_IRQHandler
+ .thumb_set OTG_FS_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream5_IRQHandler
+ .thumb_set DMA2_Stream5_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream6_IRQHandler
+ .thumb_set DMA2_Stream6_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream7_IRQHandler
+ .thumb_set DMA2_Stream7_IRQHandler,Default_Handler
+
+ .weak USART6_IRQHandler
+ .thumb_set USART6_IRQHandler,Default_Handler
+
+ .weak I2C3_EV_IRQHandler
+ .thumb_set I2C3_EV_IRQHandler,Default_Handler
+
+ .weak I2C3_ER_IRQHandler
+ .thumb_set I2C3_ER_IRQHandler,Default_Handler
+
+ .weak FPU_IRQHandler
+ .thumb_set FPU_IRQHandler,Default_Handler
+
+ .weak SPI4_IRQHandler
+ .thumb_set SPI4_IRQHandler,Default_Handler
+
+ .weak SPI5_IRQHandler
+ .thumb_set SPI5_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
diff --git a/ports/stm32f4/boards/startup_stm32f412zx.s b/ports/stm32f4/boards/startup_stm32f412zx.s
new file mode 100644
index 000000000..801220795
--- /dev/null
+++ b/ports/stm32f4/boards/startup_stm32f412zx.s
@@ -0,0 +1,524 @@
+/**
+ ******************************************************************************
+ * @file startup_stm32f412zx.s
+ * @author MCD Application Team
+ * @brief STM32F412Zx Devices vector table for GCC based toolchains.
+ * This module performs:
+ * - Set the initial SP
+ * - Set the initial PC == Reset_Handler,
+ * - Set the vector table entries with the exceptions ISR address
+ * - Branches to main in the C library (which eventually
+ * calls main()).
+ * After Reset the Cortex-M4 processor is in Thread mode,
+ * priority is Privileged, and the Stack is set to Main.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+ .syntax unified
+ .cpu cortex-m4
+ .fpu softvfp
+ .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
+
+/**
+ * @brief This is the code that gets called when the processor first
+ * starts execution following a reset event. Only the absolutely
+ * necessary set is performed, after which the application
+ * supplied main() routine is called.
+ * @param None
+ * @retval : None
+*/
+
+ .section .text.Reset_Handler
+ .weak Reset_Handler
+ .type Reset_Handler, %function
+Reset_Handler:
+ ldr sp, =_estack /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+ movs r1, #0
+ b LoopCopyDataInit
+
+CopyDataInit:
+ ldr r3, =_sidata
+ ldr r3, [r3, r1]
+ str r3, [r0, r1]
+ adds r1, r1, #4
+
+LoopCopyDataInit:
+ ldr r0, =_sdata
+ ldr r3, =_edata
+ adds r2, r0, r1
+ cmp r2, r3
+ bcc CopyDataInit
+ ldr r2, =_sbss
+ b LoopFillZerobss
+/* Zero fill the bss segment. */
+FillZerobss:
+ movs r3, #0
+ str r3, [r2], #4
+
+LoopFillZerobss:
+ ldr r3, = _ebss
+ cmp r2, r3
+ bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+ bl SystemInit
+/* Call static constructors */
+/* bl __libc_init_array */
+/* Call the application's entry point.*/
+ bl main
+ bx lr
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief This is the code that gets called when the processor receives an
+ * unexpected interrupt. This simply enters an infinite loop, preserving
+ * the system state for examination by a debugger.
+ * @param None
+ * @retval None
+*/
+ .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+ b Infinite_Loop
+ .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M3. Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+*******************************************************************************/
+ .section .isr_vector,"a",%progbits
+ .type g_pfnVectors, %object
+ .size g_pfnVectors, .-g_pfnVectors
+
+g_pfnVectors:
+ .word _estack
+ .word Reset_Handler
+ .word NMI_Handler
+ .word HardFault_Handler
+ .word MemManage_Handler
+ .word BusFault_Handler
+ .word UsageFault_Handler
+ .word 0
+ .word 0
+ .word 0
+ .word 0
+ .word SVC_Handler
+ .word DebugMon_Handler
+ .word 0
+ .word PendSV_Handler
+ .word SysTick_Handler
+
+ /* External Interrupts */
+ .word WWDG_IRQHandler /* Window WatchDog */
+ .word PVD_IRQHandler /* PVD through EXTI Line detection */
+ .word TAMP_STAMP_IRQHandler /* Tamper and TimeStamps through the EXTI line */
+ .word RTC_WKUP_IRQHandler /* RTC Wakeup through the EXTI line */
+ .word FLASH_IRQHandler /* FLASH */
+ .word RCC_IRQHandler /* RCC */
+ .word EXTI0_IRQHandler /* EXTI Line0 */
+ .word EXTI1_IRQHandler /* EXTI Line1 */
+ .word EXTI2_IRQHandler /* EXTI Line2 */
+ .word EXTI3_IRQHandler /* EXTI Line3 */
+ .word EXTI4_IRQHandler /* EXTI Line4 */
+ .word DMA1_Stream0_IRQHandler /* DMA1 Stream 0 */
+ .word DMA1_Stream1_IRQHandler /* DMA1 Stream 1 */
+ .word DMA1_Stream2_IRQHandler /* DMA1 Stream 2 */
+ .word DMA1_Stream3_IRQHandler /* DMA1 Stream 3 */
+ .word DMA1_Stream4_IRQHandler /* DMA1 Stream 4 */
+ .word DMA1_Stream5_IRQHandler /* DMA1 Stream 5 */
+ .word DMA1_Stream6_IRQHandler /* DMA1 Stream 6 */
+ .word ADC_IRQHandler /* ADC1, ADC2 and ADC3s */
+ .word CAN1_TX_IRQHandler /* CAN1 TX */
+ .word CAN1_RX0_IRQHandler /* CAN1 RX0 */
+ .word CAN1_RX1_IRQHandler /* CAN1 RX1 */
+ .word CAN1_SCE_IRQHandler /* CAN1 SCE */
+ .word EXTI9_5_IRQHandler /* External Line[9:5]s */
+ .word TIM1_BRK_TIM9_IRQHandler /* TIM1 Break and TIM9 */
+ .word TIM1_UP_TIM10_IRQHandler /* TIM1 Update and TIM10 */
+ .word TIM1_TRG_COM_TIM11_IRQHandler /* TIM1 Trigger and Commutation and TIM11 */
+ .word TIM1_CC_IRQHandler /* TIM1 Capture Compare */
+ .word TIM2_IRQHandler /* TIM2 */
+ .word TIM3_IRQHandler /* TIM3 */
+ .word TIM4_IRQHandler /* TIM4 */
+ .word I2C1_EV_IRQHandler /* I2C1 Event */
+ .word I2C1_ER_IRQHandler /* I2C1 Error */
+ .word I2C2_EV_IRQHandler /* I2C2 Event */
+ .word I2C2_ER_IRQHandler /* I2C2 Error */
+ .word SPI1_IRQHandler /* SPI1 */
+ .word SPI2_IRQHandler /* SPI2 */
+ .word USART1_IRQHandler /* USART1 */
+ .word USART2_IRQHandler /* USART2 */
+ .word USART3_IRQHandler /* USART3 */
+ .word EXTI15_10_IRQHandler /* External Line[15:10]s */
+ .word RTC_Alarm_IRQHandler /* RTC Alarm (A and B) through EXTI Line */
+ .word OTG_FS_WKUP_IRQHandler /* USB OTG FS Wakeup through EXTI line */
+ .word TIM8_BRK_TIM12_IRQHandler /* TIM8 Break and TIM12 */
+ .word TIM8_UP_TIM13_IRQHandler /* TIM8 Update and TIM13 */
+ .word TIM8_TRG_COM_TIM14_IRQHandler /* TIM8 Trigger and Commutation and TIM14 */
+ .word TIM8_CC_IRQHandler /* TIM8 Capture Compare */
+ .word DMA1_Stream7_IRQHandler /* DMA1 Stream7 */
+ .word 0 /* Reserved */
+ .word SDIO_IRQHandler /* SDIO */
+ .word TIM5_IRQHandler /* TIM5 */
+ .word SPI3_IRQHandler /* SPI3 */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word TIM6_IRQHandler /* TIM6 */
+ .word TIM7_IRQHandler /* TIM7 */
+ .word DMA2_Stream0_IRQHandler /* DMA2 Stream 0 */
+ .word DMA2_Stream1_IRQHandler /* DMA2 Stream 1 */
+ .word DMA2_Stream2_IRQHandler /* DMA2 Stream 2 */
+ .word DMA2_Stream3_IRQHandler /* DMA2 Stream 3 */
+ .word DMA2_Stream4_IRQHandler /* DMA2 Stream 4 */
+ .word DFSDM1_FLT0_IRQHandler /* DFSDM1 Filter0 */
+ .word DFSDM1_FLT1_IRQHandler /* DFSDM1 Filter1 */
+ .word CAN2_TX_IRQHandler /* CAN2 TX */
+ .word CAN2_RX0_IRQHandler /* CAN2 RX0 */
+ .word CAN2_RX1_IRQHandler /* CAN2 RX1 */
+ .word CAN2_SCE_IRQHandler /* CAN2 SCE */
+ .word OTG_FS_IRQHandler /* USB OTG FS */
+ .word DMA2_Stream5_IRQHandler /* DMA2 Stream 5 */
+ .word DMA2_Stream6_IRQHandler /* DMA2 Stream 6 */
+ .word DMA2_Stream7_IRQHandler /* DMA2 Stream 7 */
+ .word USART6_IRQHandler /* USART6 */
+ .word I2C3_EV_IRQHandler /* I2C3 event */
+ .word I2C3_ER_IRQHandler /* I2C3 error */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word RNG_IRQHandler /* RNG */
+ .word FPU_IRQHandler /* FPU */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word SPI4_IRQHandler /* SPI4 */
+ .word SPI5_IRQHandler /* SPI5 */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word QUADSPI_IRQHandler /* QuadSPI */
+ .word 0 /* Reserved */
+ .word 0 /* Reserved */
+ .word FMPI2C1_EV_IRQHandler /* FMPI2C1 Event */
+ .word FMPI2C1_ER_IRQHandler /* FMPI2C1 Error */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+ .weak NMI_Handler
+ .thumb_set NMI_Handler,Default_Handler
+
+ .weak HardFault_Handler
+ .thumb_set HardFault_Handler,Default_Handler
+
+ .weak MemManage_Handler
+ .thumb_set MemManage_Handler,Default_Handler
+
+ .weak BusFault_Handler
+ .thumb_set BusFault_Handler,Default_Handler
+
+ .weak UsageFault_Handler
+ .thumb_set UsageFault_Handler,Default_Handler
+
+ .weak SVC_Handler
+ .thumb_set SVC_Handler,Default_Handler
+
+ .weak DebugMon_Handler
+ .thumb_set DebugMon_Handler,Default_Handler
+
+ .weak PendSV_Handler
+ .thumb_set PendSV_Handler,Default_Handler
+
+ .weak SysTick_Handler
+ .thumb_set SysTick_Handler,Default_Handler
+
+ .weak WWDG_IRQHandler
+ .thumb_set WWDG_IRQHandler,Default_Handler
+
+ .weak PVD_IRQHandler
+ .thumb_set PVD_IRQHandler,Default_Handler
+
+ .weak TAMP_STAMP_IRQHandler
+ .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
+
+ .weak RTC_WKUP_IRQHandler
+ .thumb_set RTC_WKUP_IRQHandler,Default_Handler
+
+ .weak FLASH_IRQHandler
+ .thumb_set FLASH_IRQHandler,Default_Handler
+
+ .weak RCC_IRQHandler
+ .thumb_set RCC_IRQHandler,Default_Handler
+
+ .weak EXTI0_IRQHandler
+ .thumb_set EXTI0_IRQHandler,Default_Handler
+
+ .weak EXTI1_IRQHandler
+ .thumb_set EXTI1_IRQHandler,Default_Handler
+
+ .weak EXTI2_IRQHandler
+ .thumb_set EXTI2_IRQHandler,Default_Handler
+
+ .weak EXTI3_IRQHandler
+ .thumb_set EXTI3_IRQHandler,Default_Handler
+
+ .weak EXTI4_IRQHandler
+ .thumb_set EXTI4_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream0_IRQHandler
+ .thumb_set DMA1_Stream0_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream1_IRQHandler
+ .thumb_set DMA1_Stream1_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream2_IRQHandler
+ .thumb_set DMA1_Stream2_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream3_IRQHandler
+ .thumb_set DMA1_Stream3_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream4_IRQHandler
+ .thumb_set DMA1_Stream4_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream5_IRQHandler
+ .thumb_set DMA1_Stream5_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream6_IRQHandler
+ .thumb_set DMA1_Stream6_IRQHandler,Default_Handler
+
+ .weak ADC_IRQHandler
+ .thumb_set ADC_IRQHandler,Default_Handler
+
+ .weak CAN1_TX_IRQHandler
+ .thumb_set CAN1_TX_IRQHandler,Default_Handler
+
+ .weak CAN1_RX0_IRQHandler
+ .thumb_set CAN1_RX0_IRQHandler,Default_Handler
+
+ .weak CAN1_RX1_IRQHandler
+ .thumb_set CAN1_RX1_IRQHandler,Default_Handler
+
+ .weak CAN1_SCE_IRQHandler
+ .thumb_set CAN1_SCE_IRQHandler,Default_Handler
+
+ .weak EXTI9_5_IRQHandler
+ .thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+ .weak TIM1_BRK_TIM9_IRQHandler
+ .thumb_set TIM1_BRK_TIM9_IRQHandler,Default_Handler
+
+ .weak TIM1_UP_TIM10_IRQHandler
+ .thumb_set TIM1_UP_TIM10_IRQHandler,Default_Handler
+
+ .weak TIM1_TRG_COM_TIM11_IRQHandler
+ .thumb_set TIM1_TRG_COM_TIM11_IRQHandler,Default_Handler
+
+ .weak TIM1_CC_IRQHandler
+ .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+ .weak TIM2_IRQHandler
+ .thumb_set TIM2_IRQHandler,Default_Handler
+
+ .weak TIM3_IRQHandler
+ .thumb_set TIM3_IRQHandler,Default_Handler
+
+ .weak TIM4_IRQHandler
+ .thumb_set TIM4_IRQHandler,Default_Handler
+
+ .weak I2C1_EV_IRQHandler
+ .thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+ .weak I2C1_ER_IRQHandler
+ .thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+ .weak I2C2_EV_IRQHandler
+ .thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+ .weak I2C2_ER_IRQHandler
+ .thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+ .weak SPI1_IRQHandler
+ .thumb_set SPI1_IRQHandler,Default_Handler
+
+ .weak SPI2_IRQHandler
+ .thumb_set SPI2_IRQHandler,Default_Handler
+
+ .weak USART1_IRQHandler
+ .thumb_set USART1_IRQHandler,Default_Handler
+
+ .weak USART2_IRQHandler
+ .thumb_set USART2_IRQHandler,Default_Handler
+
+ .weak USART3_IRQHandler
+ .thumb_set USART3_IRQHandler,Default_Handler
+
+ .weak EXTI15_10_IRQHandler
+ .thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+ .weak RTC_Alarm_IRQHandler
+ .thumb_set RTC_Alarm_IRQHandler,Default_Handler
+
+ .weak OTG_FS_WKUP_IRQHandler
+ .thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler
+
+ .weak TIM8_BRK_TIM12_IRQHandler
+ .thumb_set TIM8_BRK_TIM12_IRQHandler,Default_Handler
+
+ .weak TIM8_UP_TIM13_IRQHandler
+ .thumb_set TIM8_UP_TIM13_IRQHandler,Default_Handler
+
+ .weak TIM8_TRG_COM_TIM14_IRQHandler
+ .thumb_set TIM8_TRG_COM_TIM14_IRQHandler,Default_Handler
+
+ .weak TIM8_CC_IRQHandler
+ .thumb_set TIM8_CC_IRQHandler,Default_Handler
+
+ .weak DMA1_Stream7_IRQHandler
+ .thumb_set DMA1_Stream7_IRQHandler,Default_Handler
+
+ .weak SDIO_IRQHandler
+ .thumb_set SDIO_IRQHandler,Default_Handler
+
+ .weak TIM5_IRQHandler
+ .thumb_set TIM5_IRQHandler,Default_Handler
+
+ .weak SPI3_IRQHandler
+ .thumb_set SPI3_IRQHandler,Default_Handler
+
+ .weak TIM6_IRQHandler
+ .thumb_set TIM6_IRQHandler,Default_Handler
+
+ .weak TIM7_IRQHandler
+ .thumb_set TIM7_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream0_IRQHandler
+ .thumb_set DMA2_Stream0_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream1_IRQHandler
+ .thumb_set DMA2_Stream1_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream2_IRQHandler
+ .thumb_set DMA2_Stream2_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream3_IRQHandler
+ .thumb_set DMA2_Stream3_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream4_IRQHandler
+ .thumb_set DMA2_Stream4_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT0_IRQHandler
+ .thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT1_IRQHandler
+ .thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler
+
+ .weak CAN2_TX_IRQHandler
+ .thumb_set CAN2_TX_IRQHandler,Default_Handler
+
+ .weak CAN2_RX0_IRQHandler
+ .thumb_set CAN2_RX0_IRQHandler,Default_Handler
+
+ .weak CAN2_RX1_IRQHandler
+ .thumb_set CAN2_RX1_IRQHandler,Default_Handler
+
+ .weak CAN2_SCE_IRQHandler
+ .thumb_set CAN2_SCE_IRQHandler,Default_Handler
+
+ .weak OTG_FS_IRQHandler
+ .thumb_set OTG_FS_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream5_IRQHandler
+ .thumb_set DMA2_Stream5_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream6_IRQHandler
+ .thumb_set DMA2_Stream6_IRQHandler,Default_Handler
+
+ .weak DMA2_Stream7_IRQHandler
+ .thumb_set DMA2_Stream7_IRQHandler,Default_Handler
+
+ .weak USART6_IRQHandler
+ .thumb_set USART6_IRQHandler,Default_Handler
+
+ .weak I2C3_EV_IRQHandler
+ .thumb_set I2C3_EV_IRQHandler,Default_Handler
+
+ .weak I2C3_ER_IRQHandler
+ .thumb_set I2C3_ER_IRQHandler,Default_Handler
+
+ .weak RNG_IRQHandler
+ .thumb_set RNG_IRQHandler,Default_Handler
+
+ .weak FPU_IRQHandler
+ .thumb_set FPU_IRQHandler,Default_Handler
+
+ .weak SPI4_IRQHandler
+ .thumb_set SPI4_IRQHandler,Default_Handler
+
+ .weak SPI5_IRQHandler
+ .thumb_set SPI5_IRQHandler,Default_Handler
+
+ .weak QUADSPI_IRQHandler
+ .thumb_set QUADSPI_IRQHandler,Default_Handler
+
+ .weak FMPI2C1_EV_IRQHandler
+ .thumb_set FMPI2C1_EV_IRQHandler,Default_Handler
+
+ .weak FMPI2C1_ER_IRQHandler
+ .thumb_set FMPI2C1_ER_IRQHandler,Default_Handler
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/boards/stm32f411.ld b/ports/stm32f4/boards/stm32f411.ld
new file mode 100644
index 000000000..f0d4804f9
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411.ld
@@ -0,0 +1,189 @@
+/*
+******************************************************************************
+**
+
+** File : LinkerScript.ld
+**
+** Author : Auto-generated by Ac6 System Workbench
+**
+** Abstract : Linker script for STM32F411RETx series
+** 512Kbytes FLASH and 128Kbytes RAM
+**
+** Set heap size, stack size and stack location according
+** to application requirements.
+**
+** Set memory bank area and size if external memory is used.
+**
+** Target : STMicroelectronics STM32
+**
+** Distribution: The file is distributed “as is,” without any warranty
+** of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2014 Ac6</center></h2>
+**
+** Redistribution and use in source and binary forms, with or without modification,
+** are permitted provided that the following conditions are met:
+** 1. Redistributions of source code must retain the above copyright notice,
+** this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright notice,
+** this list of conditions and the following disclaimer in the documentation
+** and/or other materials provided with the distribution.
+** 3. Neither the name of Ac6 nor the names of its contributors
+** may be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20020000; /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200; /* required amount of heap */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
+FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 512K
+}
+
+/* Define output sections */
+SECTIONS
+{
+ /* The startup code goes first into FLASH */
+ .isr_vector :
+ {
+ . = ALIGN(4);
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ } >FLASH
+
+ /* The program code and other data goes into FLASH */
+ .text :
+ {
+ . = ALIGN(4);
+ *(.text) /* .text sections (code) */
+ *(.text*) /* .text* sections (code) */
+ *(.glue_7) /* glue arm to thumb code */
+ *(.glue_7t) /* glue thumb to arm code */
+ *(.eh_frame)
+
+ KEEP (*(.init))
+ KEEP (*(.fini))
+
+ . = ALIGN(4);
+ _etext = .; /* define a global symbols at end of code */
+ } >FLASH
+
+ /* Constant data goes into FLASH */
+ .rodata :
+ {
+ . = ALIGN(4);
+ *(.rodata) /* .rodata sections (constants, strings, etc.) */
+ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
+ . = ALIGN(4);
+ } >FLASH
+
+ .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+ .ARM : {
+ __exidx_start = .;
+ *(.ARM.exidx*)
+ __exidx_end = .;
+ } >FLASH
+
+ .preinit_array :
+ {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array*))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ } >FLASH
+ .init_array :
+ {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array*))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ } >FLASH
+ .fini_array :
+ {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array*))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ } >FLASH
+
+ /* used by the startup to initialize data */
+ _sidata = LOADADDR(.data);
+
+ /* Initialized data sections goes into RAM, load LMA copy after code */
+ .data :
+ {
+ . = ALIGN(4);
+ _sdata = .; /* create a global symbol at data start */
+ *(.data) /* .data sections */
+ *(.data*) /* .data* sections */
+
+ . = ALIGN(4);
+ _edata = .; /* define a global symbol at data end */
+ } >RAM AT> FLASH
+
+
+ /* Uninitialized data section */
+ . = ALIGN(4);
+ .bss :
+ {
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .; /* define a global symbol at bss start */
+ __bss_start__ = _sbss;
+ *(.bss)
+ *(.bss*)
+ *(COMMON)
+
+ . = ALIGN(4);
+ _ebss = .; /* define a global symbol at bss end */
+ __bss_end__ = _ebss;
+ } >RAM
+
+ /* User_heap_stack section, used to check that there is enough RAM left */
+ ._user_heap_stack :
+ {
+ . = ALIGN(8);
+ PROVIDE ( end = . );
+ PROVIDE ( _end = . );
+ . = . + _Min_Heap_Size;
+ . = . + _Min_Stack_Size;
+ . = ALIGN(8);
+ } >RAM
+
+
+
+ /* Remove information from the standard libraries */
+ /DISCARD/ :
+ {
+ libc.a ( * )
+ libm.a ( * )
+ libgcc.a ( * )
+ }
+
+ .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/board.c b/ports/stm32f4/boards/stm32f411re_discovery/board.c
new file mode 100644
index 000000000..4421970ee
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/board.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "boards/board.h"
+
+void board_init(void) {
+}
+
+bool board_requests_safe_mode(void) {
+ return false;
+}
+
+void reset_board(void) {
+
+}
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.h b/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.h
new file mode 100644
index 000000000..675443282
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+//Micropython setup
+
+#define MICROPY_HW_BOARD_NAME "STM32F411E_DISCO"
+#define MICROPY_HW_MCU_NAME "STM32F411xE"
+
+#define FLASH_SIZE (0x7D000)
+#define FLASH_PAGE_SIZE (0x4000)
+
+#define CIRCUITPY_INTERNAL_NVM_SIZE (4096)
+#define AUTORESET_DELAY_MS 500
+#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE) \ No newline at end of file
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.mk b/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.mk
new file mode 100644
index 000000000..7b865b57e
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/mpconfigboard.mk
@@ -0,0 +1,13 @@
+USB_VID = 0x239A
+USB_PID = 0x802A
+USB_PRODUCT = "STM32F411RE Discovery Board - CPy"
+USB_MANUFACTURER = "Adafruit Industries LLC"
+
+MCU_SERIES = m4
+MCU_VARIANT = stm32f4
+MCU_SUB_VARIANT = stm32f411xe
+CMSIS_MCU = STM32F411xE
+LD_FILE = boards/STM32F411VETx_FLASH.ld
+TEXT0_ADDR = 0x08000000
+TEXT1_ADDR = 0x08020000
+
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/pins.c b/ports/stm32f4/boards/stm32f411re_discovery/pins.c
new file mode 100644
index 000000000..e3a4b5ed6
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/pins.c
@@ -0,0 +1,90 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+ { MP_ROM_QSTR(MP_QSTR_PE02), MP_ROM_PTR(&pin_PE02) },
+ { MP_ROM_QSTR(MP_QSTR_PE03), MP_ROM_PTR(&pin_PE03) },
+ { MP_ROM_QSTR(MP_QSTR_PE04), MP_ROM_PTR(&pin_PE04) },
+ { MP_ROM_QSTR(MP_QSTR_PE05), MP_ROM_PTR(&pin_PE05) },
+ { MP_ROM_QSTR(MP_QSTR_PE06), MP_ROM_PTR(&pin_PE06) },
+ { MP_ROM_QSTR(MP_QSTR_PC13), MP_ROM_PTR(&pin_PC13) },
+ { MP_ROM_QSTR(MP_QSTR_PF02), MP_ROM_PTR(&pin_PF02) },
+ { MP_ROM_QSTR(MP_QSTR_PF03), MP_ROM_PTR(&pin_PF03) },
+ { MP_ROM_QSTR(MP_QSTR_PF10), MP_ROM_PTR(&pin_PF10) },
+ { MP_ROM_QSTR(MP_QSTR_PC00), MP_ROM_PTR(&pin_PC00) },
+ { MP_ROM_QSTR(MP_QSTR_PC01), MP_ROM_PTR(&pin_PC01) },
+ { MP_ROM_QSTR(MP_QSTR_PC02), MP_ROM_PTR(&pin_PC02) },
+ { MP_ROM_QSTR(MP_QSTR_PC03), MP_ROM_PTR(&pin_PC03) },
+ { MP_ROM_QSTR(MP_QSTR_PA01), MP_ROM_PTR(&pin_PA01) },
+ { MP_ROM_QSTR(MP_QSTR_PA02), MP_ROM_PTR(&pin_PA02) },
+ { MP_ROM_QSTR(MP_QSTR_PA03), MP_ROM_PTR(&pin_PA03) },
+ { MP_ROM_QSTR(MP_QSTR_PA04), MP_ROM_PTR(&pin_PA04) },
+ { MP_ROM_QSTR(MP_QSTR_PA05), MP_ROM_PTR(&pin_PA05) },
+ { MP_ROM_QSTR(MP_QSTR_PA06), MP_ROM_PTR(&pin_PA06) },
+ { MP_ROM_QSTR(MP_QSTR_PA07), MP_ROM_PTR(&pin_PA07) },
+ { MP_ROM_QSTR(MP_QSTR_PC04), MP_ROM_PTR(&pin_PC04) },
+ { MP_ROM_QSTR(MP_QSTR_PC05), MP_ROM_PTR(&pin_PC05) },
+ { MP_ROM_QSTR(MP_QSTR_PB00), MP_ROM_PTR(&pin_PB00) },
+ { MP_ROM_QSTR(MP_QSTR_PB01), MP_ROM_PTR(&pin_PB01) },
+ { MP_ROM_QSTR(MP_QSTR_PF11), MP_ROM_PTR(&pin_PF11) },
+ { MP_ROM_QSTR(MP_QSTR_PF13), MP_ROM_PTR(&pin_PF13) },
+ { MP_ROM_QSTR(MP_QSTR_PB10), MP_ROM_PTR(&pin_PB10) },
+ { MP_ROM_QSTR(MP_QSTR_PB11), MP_ROM_PTR(&pin_PB11) },
+ { MP_ROM_QSTR(MP_QSTR_PB12), MP_ROM_PTR(&pin_PB12) },
+ { MP_ROM_QSTR(MP_QSTR_PB13), MP_ROM_PTR(&pin_PB13) },
+ { MP_ROM_QSTR(MP_QSTR_PB14), MP_ROM_PTR(&pin_PB14) },
+ { MP_ROM_QSTR(MP_QSTR_PB15), MP_ROM_PTR(&pin_PB15) },
+ { MP_ROM_QSTR(MP_QSTR_PD12), MP_ROM_PTR(&pin_PD12) },
+ { MP_ROM_QSTR(MP_QSTR_PD13), MP_ROM_PTR(&pin_PD13) },
+ { MP_ROM_QSTR(MP_QSTR_PG02), MP_ROM_PTR(&pin_PG02) },
+ { MP_ROM_QSTR(MP_QSTR_PC06), MP_ROM_PTR(&pin_PC06) },
+ { MP_ROM_QSTR(MP_QSTR_PC07), MP_ROM_PTR(&pin_PC07) },
+ { MP_ROM_QSTR(MP_QSTR_PC09), MP_ROM_PTR(&pin_PC09) },
+ { MP_ROM_QSTR(MP_QSTR_PA08), MP_ROM_PTR(&pin_PA08) },
+ { MP_ROM_QSTR(MP_QSTR_PA10), MP_ROM_PTR(&pin_PA10) },
+ { MP_ROM_QSTR(MP_QSTR_PA13), MP_ROM_PTR(&pin_PA13) },
+ { MP_ROM_QSTR(MP_QSTR_PA14), MP_ROM_PTR(&pin_PA14) },
+ { MP_ROM_QSTR(MP_QSTR_PA15), MP_ROM_PTR(&pin_PA15) },
+ { MP_ROM_QSTR(MP_QSTR_PD06), MP_ROM_PTR(&pin_PD06) },
+ { MP_ROM_QSTR(MP_QSTR_PG09), MP_ROM_PTR(&pin_PG09) },
+ { MP_ROM_QSTR(MP_QSTR_PG10), MP_ROM_PTR(&pin_PG10) },
+ { MP_ROM_QSTR(MP_QSTR_PG11), MP_ROM_PTR(&pin_PG11) },
+ { MP_ROM_QSTR(MP_QSTR_PG12), MP_ROM_PTR(&pin_PG12) },
+ { MP_ROM_QSTR(MP_QSTR_PG13), MP_ROM_PTR(&pin_PG13) },
+ { MP_ROM_QSTR(MP_QSTR_PG14), MP_ROM_PTR(&pin_PG14) },
+ { MP_ROM_QSTR(MP_QSTR_PB03), MP_ROM_PTR(&pin_PB03) },
+ { MP_ROM_QSTR(MP_QSTR_PB04), MP_ROM_PTR(&pin_PB04) },
+ { MP_ROM_QSTR(MP_QSTR_PB05), MP_ROM_PTR(&pin_PB05) },
+ { MP_ROM_QSTR(MP_QSTR_PB06), MP_ROM_PTR(&pin_PB06) },
+ { MP_ROM_QSTR(MP_QSTR_PB07), MP_ROM_PTR(&pin_PB07) },
+ { MP_ROM_QSTR(MP_QSTR_PB08), MP_ROM_PTR(&pin_PB08) },
+ { MP_ROM_QSTR(MP_QSTR_PB09), MP_ROM_PTR(&pin_PB09) },
+ { MP_ROM_QSTR(MP_QSTR_PE00), MP_ROM_PTR(&pin_PE00) },
+ { MP_ROM_QSTR(MP_QSTR_PE01), MP_ROM_PTR(&pin_PE01) },
+ { MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_PB10) },
+ { MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_PB09) },
+ { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_PA05) },
+ { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_PA06) },
+ { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_PA07) },
+ { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_PA15) },
+ { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_PB08) },
+ { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_PG10) },
+ { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_PG11) },
+ { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_PF03) },
+ { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_PF10) },
+ { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_PG12) },
+ { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_PF04) },
+ { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_PG13) },
+ { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_PG14) },
+ { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_PG09) },
+ { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_PA01) },
+ { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_PC01) },
+ { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_PC03) },
+ { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_PC04) },
+ { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_PC05) }, //alt PB09, see F401ZG-DISCO manual
+ { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_PB00) }, //alt PB10, see F401ZG-DISCO manual
+ { MP_ROM_QSTR(MP_QSTR_LED1), MP_ROM_PTR(&pin_PE00) },
+ { MP_ROM_QSTR(MP_QSTR_LED2), MP_ROM_PTR(&pin_PE01) },
+ { MP_ROM_QSTR(MP_QSTR_LED3), MP_ROM_PTR(&pin_PE02) },
+ { MP_ROM_QSTR(MP_QSTR_LED4), MP_ROM_PTR(&pin_PE03) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_conf.h b/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_conf.h
new file mode 100644
index 000000000..548c501dc
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_conf.h
@@ -0,0 +1,439 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_conf_template.h
+ * @author MCD Application Team
+ * @brief HAL configuration template file.
+ * This file should be copied to the application folder and renamed
+ * to stm32f4xx_hal_conf.h.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_HAL_CONF_H
+#define __STM32F4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+ * @brief This is the list of modules to be used in the HAL driver
+ */
+#define HAL_MODULE_ENABLED
+
+ /* #define HAL_ADC_MODULE_ENABLED */
+/* #define HAL_CRYP_MODULE_ENABLED */
+/* #define HAL_CAN_MODULE_ENABLED */
+/* #define HAL_CRC_MODULE_ENABLED */
+/* #define HAL_CRYP_MODULE_ENABLED */
+/* #define HAL_DAC_MODULE_ENABLED */
+/* #define HAL_DCMI_MODULE_ENABLED */
+/* #define HAL_DMA2D_MODULE_ENABLED */
+/* #define HAL_ETH_MODULE_ENABLED */
+/* #define HAL_NAND_MODULE_ENABLED */
+/* #define HAL_NOR_MODULE_ENABLED */
+/* #define HAL_PCCARD_MODULE_ENABLED */
+/* #define HAL_SRAM_MODULE_ENABLED */
+/* #define HAL_SDRAM_MODULE_ENABLED */
+/* #define HAL_HASH_MODULE_ENABLED */
+#define HAL_I2C_MODULE_ENABLED
+#define HAL_I2S_MODULE_ENABLED
+/* #define HAL_IWDG_MODULE_ENABLED */
+/* #define HAL_LTDC_MODULE_ENABLED */
+/* #define HAL_RNG_MODULE_ENABLED */
+/* #define HAL_RTC_MODULE_ENABLED */
+/* #define HAL_SAI_MODULE_ENABLED */
+/* #define HAL_SD_MODULE_ENABLED */
+/* #define HAL_MMC_MODULE_ENABLED */
+#define HAL_SPI_MODULE_ENABLED
+/* #define HAL_TIM_MODULE_ENABLED */
+#define HAL_UART_MODULE_ENABLED
+/* #define HAL_USART_MODULE_ENABLED */
+/* #define HAL_IRDA_MODULE_ENABLED */
+/* #define HAL_SMARTCARD_MODULE_ENABLED */
+/* #define HAL_WWDG_MODULE_ENABLED */
+#define HAL_PCD_MODULE_ENABLED
+/* #define HAL_HCD_MODULE_ENABLED */
+/* #define HAL_DSI_MODULE_ENABLED */
+/* #define HAL_QSPI_MODULE_ENABLED */
+/* #define HAL_QSPI_MODULE_ENABLED */
+/* #define HAL_CEC_MODULE_ENABLED */
+/* #define HAL_FMPI2C_MODULE_ENABLED */
+/* #define HAL_SPDIFRX_MODULE_ENABLED */
+/* #define HAL_DFSDM_MODULE_ENABLED */
+/* #define HAL_LPTIM_MODULE_ENABLED */
+/* #define HAL_EXTI_MODULE_ENABLED */
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_EXTI_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+ * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSE is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000U) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (HSE_STARTUP_TIMEOUT)
+ #define HSE_STARTUP_TIMEOUT ((uint32_t)100U) /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal High Speed oscillator (HSI) value.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSI is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @brief Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE ((uint32_t)32000U) /*!< LSI Typical Value in Hz*/
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature.*/
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE ((uint32_t)32768U) /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+#if !defined (LSE_STARTUP_TIMEOUT)
+ #define LSE_STARTUP_TIMEOUT ((uint32_t)5000U) /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief External clock source for I2S peripheral
+ * This value is used by the I2S HAL module to compute the I2S clock source
+ * frequency, this source is inserted directly through I2S_CKIN pad.
+ */
+#if !defined (EXTERNAL_CLOCK_VALUE)
+ #define EXTERNAL_CLOCK_VALUE ((uint32_t)12288000U) /*!< Value of the External audio frequency in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+ === you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+ * @brief This is the HAL system configuration section
+ */
+#define VDD_VALUE ((uint32_t)3300U) /*!< Value of VDD in mv */
+#define TICK_INT_PRIORITY ((uint32_t)0U) /*!< tick interrupt priority */
+#define USE_RTOS 0U
+#define PREFETCH_ENABLE 1U
+#define INSTRUCTION_CACHE_ENABLE 1U
+#define DATA_CACHE_ENABLE 1U
+
+/* ########################## Assert Selection ############################## */
+/**
+ * @brief Uncomment the line below to expanse the "assert_param" macro in the
+ * HAL drivers code
+ */
+/* #define USE_FULL_ASSERT 1U */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0 2U
+#define MAC_ADDR1 0U
+#define MAC_ADDR2 0U
+#define MAC_ADDR3 0U
+#define MAC_ADDR4 0U
+#define MAC_ADDR5 0U
+
+/* Definition of the Ethernet driver buffers size and count */
+#define ETH_RX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for receive */
+#define ETH_TX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for transmit */
+#define ETH_RXBUFNB ((uint32_t)4U) /* 4 Rx buffers of size ETH_RX_BUF_SIZE */
+#define ETH_TXBUFNB ((uint32_t)4U) /* 4 Tx buffers of size ETH_TX_BUF_SIZE */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848_PHY_ADDRESS Address*/
+#define DP83848_PHY_ADDRESS 0x01U
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
+#define PHY_RESET_DELAY ((uint32_t)0x000000FFU)
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY ((uint32_t)0x00000FFFU)
+
+#define PHY_READ_TO ((uint32_t)0x0000FFFFU)
+#define PHY_WRITE_TO ((uint32_t)0x0000FFFFU)
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR ((uint16_t)0x0000U) /*!< Transceiver Basic Control Register */
+#define PHY_BSR ((uint16_t)0x0001U) /*!< Transceiver Basic Status Register */
+
+#define PHY_RESET ((uint16_t)0x8000U) /*!< PHY Reset */
+#define PHY_LOOPBACK ((uint16_t)0x4000U) /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M ((uint16_t)0x2100U) /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M ((uint16_t)0x2000U) /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M ((uint16_t)0x0100U) /*!< Set the full-duplex mode at 10 Mb/s */
+#define PHY_HALFDUPLEX_10M ((uint16_t)0x0000U) /*!< Set the half-duplex mode at 10 Mb/s */
+#define PHY_AUTONEGOTIATION ((uint16_t)0x1000U) /*!< Enable auto-negotiation function */
+#define PHY_RESTART_AUTONEGOTIATION ((uint16_t)0x0200U) /*!< Restart auto-negotiation function */
+#define PHY_POWERDOWN ((uint16_t)0x0800U) /*!< Select the power down mode */
+#define PHY_ISOLATE ((uint16_t)0x0400U) /*!< Isolate PHY from MII */
+
+#define PHY_AUTONEGO_COMPLETE ((uint16_t)0x0020U) /*!< Auto-Negotiation process completed */
+#define PHY_LINKED_STATUS ((uint16_t)0x0004U) /*!< Valid link established */
+#define PHY_JABBER_DETECTION ((uint16_t)0x0002U) /*!< Jabber condition detected */
+
+/* Section 4: Extended PHY Registers */
+#define PHY_SR ((uint16_t)0x10U) /*!< PHY status register Offset */
+
+#define PHY_SPEED_STATUS ((uint16_t)0x0002U) /*!< PHY Speed mask */
+#define PHY_DUPLEX_STATUS ((uint16_t)0x0004U) /*!< PHY Duplex mask */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC 0U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+ * @brief Include module's header file
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_EXTI_MODULE_ENABLED
+ #include "stm32f4xx_hal_exti.h"
+#endif /* HAL_EXTI_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+ #include "stm32f4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+ #include "stm32f4xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DMA2D_MODULE_ENABLED
+ #include "stm32f4xx_hal_dma2d.h"
+#endif /* HAL_DMA2D_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_DCMI_MODULE_ENABLED
+ #include "stm32f4xx_hal_dcmi.h"
+#endif /* HAL_DCMI_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+ #include "stm32f4xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32f4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32f4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32f4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */
+
+#ifdef HAL_SDRAM_MODULE_ENABLED
+ #include "stm32f4xx_hal_sdram.h"
+#endif /* HAL_SDRAM_MODULE_ENABLED */
+
+#ifdef HAL_HASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_hash.h"
+#endif /* HAL_HASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LTDC_MODULE_ENABLED
+ #include "stm32f4xx_hal_ltdc.h"
+#endif /* HAL_LTDC_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32f4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32f4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_MMC_MODULE_ENABLED
+ #include "stm32f4xx_hal_mmc.h"
+#endif /* HAL_MMC_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+#ifdef HAL_DSI_MODULE_ENABLED
+ #include "stm32f4xx_hal_dsi.h"
+#endif /* HAL_DSI_MODULE_ENABLED */
+
+#ifdef HAL_QSPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_qspi.h"
+#endif /* HAL_QSPI_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f4xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_FMPI2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_fmpi2c.h"
+#endif /* HAL_FMPI2C_MODULE_ENABLED */
+
+#ifdef HAL_SPDIFRX_MODULE_ENABLED
+ #include "stm32f4xx_hal_spdifrx.h"
+#endif /* HAL_SPDIFRX_MODULE_ENABLED */
+
+#ifdef HAL_DFSDM_MODULE_ENABLED
+ #include "stm32f4xx_hal_dfsdm.h"
+#endif /* HAL_DFSDM_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function
+ * which reports the name of the source file and the source
+ * line number of the call that failed.
+ * If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(uint8_t* file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_msp.c b/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_msp.c
new file mode 100644
index 000000000..4989f9889
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f411re_discovery/stm32f4xx_hal_msp.c
@@ -0,0 +1,427 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * File Name : stm32f4xx_hal_msp.c
+ * Description : This file provides code for the MSP Initialization
+ * and de-Initialization codes.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under Ultimate Liberty license
+ * SLA0044, the "License"; You may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * www.st.com/SLA0044
+ *
+ ******************************************************************************
+ */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+#include "stm32f4xx_hal.h"
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN Define */
+#define DATA_Ready_Pin GPIO_PIN_2
+#define DATA_Ready_GPIO_Port GPIOE
+#define CS_I2C_SPI_Pin GPIO_PIN_3
+#define CS_I2C_SPI_GPIO_Port GPIOE
+#define INT1_Pin GPIO_PIN_4
+#define INT1_GPIO_Port GPIOE
+#define INT2_Pin GPIO_PIN_5
+#define INT2_GPIO_Port GPIOE
+#define PC14_OSC32_IN_Pin GPIO_PIN_14
+#define PC14_OSC32_IN_GPIO_Port GPIOC
+#define PC15_OSC32_OUT_Pin GPIO_PIN_15
+#define PC15_OSC32_OUT_GPIO_Port GPIOC
+#define PH0_OSC_IN_Pin GPIO_PIN_0
+#define PH0_OSC_IN_GPIO_Port GPIOH
+#define PH1_OSC_OUT_Pin GPIO_PIN_1
+#define PH1_OSC_OUT_GPIO_Port GPIOH
+#define OTG_FS_PowerSwitchOn_Pin GPIO_PIN_0
+#define OTG_FS_PowerSwitchOn_GPIO_Port GPIOC
+#define PDM_OUT_Pin GPIO_PIN_3
+#define PDM_OUT_GPIO_Port GPIOC
+#define I2S3_WS_Pin GPIO_PIN_4
+#define I2S3_WS_GPIO_Port GPIOA
+#define SPI1_SCK_Pin GPIO_PIN_5
+#define SPI1_SCK_GPIO_Port GPIOA
+#define SPI1_MISO_Pin GPIO_PIN_6
+#define SPI1_MISO_GPIO_Port GPIOA
+#define SPI1_MOSI_Pin GPIO_PIN_7
+#define SPI1_MOSI_GPIO_Port GPIOA
+#define CLK_IN_Pin GPIO_PIN_10
+#define CLK_IN_GPIO_Port GPIOB
+#define LD4_Pin GPIO_PIN_12
+#define LD4_GPIO_Port GPIOD
+#define LD3_Pin GPIO_PIN_13
+#define LD3_GPIO_Port GPIOD
+#define LD5_Pin GPIO_PIN_14
+#define LD5_GPIO_Port GPIOD
+#define LD6_Pin GPIO_PIN_15
+#define LD6_GPIO_Port GPIOD
+#define I2S3_MCK_Pin GPIO_PIN_7
+#define I2S3_MCK_GPIO_Port GPIOC
+#define VBUS_FS_Pin GPIO_PIN_9
+#define VBUS_FS_GPIO_Port GPIOA
+#define OTG_FS_ID_Pin GPIO_PIN_10
+#define OTG_FS_ID_GPIO_Port GPIOA
+#define OTG_FS_DM_Pin GPIO_PIN_11
+#define OTG_FS_DM_GPIO_Port GPIOA
+#define OTG_FS_DP_Pin GPIO_PIN_12
+#define OTG_FS_DP_GPIO_Port GPIOA
+#define SWDIO_Pin GPIO_PIN_13
+#define SWDIO_GPIO_Port GPIOA
+#define SWCLK_Pin GPIO_PIN_14
+#define SWCLK_GPIO_Port GPIOA
+#define I2S3_SCK_Pin GPIO_PIN_10
+#define I2S3_SCK_GPIO_Port GPIOC
+#define I2S3_SD_Pin GPIO_PIN_12
+#define I2S3_SD_GPIO_Port GPIOC
+#define Audio_RST_Pin GPIO_PIN_4
+#define Audio_RST_GPIO_Port GPIOD
+#define OTG_FS_OverCurrent_Pin GPIO_PIN_5
+#define OTG_FS_OverCurrent_GPIO_Port GPIOD
+#define SWO_Pin GPIO_PIN_3
+#define SWO_GPIO_Port GPIOB
+#define Audio_SCL_Pin GPIO_PIN_6
+#define Audio_SCL_GPIO_Port GPIOB
+#define Audio_SDA_Pin GPIO_PIN_9
+#define Audio_SDA_GPIO_Port GPIOB
+#define MEMS_INT2_Pin GPIO_PIN_1
+#define MEMS_INT2_GPIO_Port GPIOE
+
+/* USER CODE END Define */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN Macro */
+
+/* USER CODE END Macro */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* External functions --------------------------------------------------------*/
+/* USER CODE BEGIN ExternalFunctions */
+
+/* USER CODE END ExternalFunctions */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+/**
+ * Initializes the Global MSP.
+ */
+void HAL_MspInit(void)
+{
+ /* USER CODE BEGIN MspInit 0 */
+
+ /* USER CODE END MspInit 0 */
+
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+ __HAL_RCC_PWR_CLK_ENABLE();
+
+ HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0);
+
+ /* System interrupt init*/
+
+ /* USER CODE BEGIN MspInit 1 */
+
+ /* USER CODE END MspInit 1 */
+}
+
+/**
+* @brief I2C MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hi2c: I2C handle pointer
+* @retval None
+*/
+void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hi2c->Instance==I2C1)
+ {
+ /* USER CODE BEGIN I2C1_MspInit 0 */
+
+ /* USER CODE END I2C1_MspInit 0 */
+
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ /**I2C1 GPIO Configuration
+ PB6 ------> I2C1_SCL
+ PB9 ------> I2C1_SDA
+ */
+ GPIO_InitStruct.Pin = Audio_SCL_Pin|Audio_SDA_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ /* Peripheral clock enable */
+ __HAL_RCC_I2C1_CLK_ENABLE();
+ /* USER CODE BEGIN I2C1_MspInit 1 */
+
+ /* USER CODE END I2C1_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief I2C MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hi2c: I2C handle pointer
+* @retval None
+*/
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
+{
+ if(hi2c->Instance==I2C1)
+ {
+ /* USER CODE BEGIN I2C1_MspDeInit 0 */
+
+ /* USER CODE END I2C1_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_I2C1_CLK_DISABLE();
+
+ /**I2C1 GPIO Configuration
+ PB6 ------> I2C1_SCL
+ PB9 ------> I2C1_SDA
+ */
+ HAL_GPIO_DeInit(GPIOB, Audio_SCL_Pin|Audio_SDA_Pin);
+
+ /* USER CODE BEGIN I2C1_MspDeInit 1 */
+
+ /* USER CODE END I2C1_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief I2S MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hi2s: I2S handle pointer
+* @retval None
+*/
+void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hi2s->Instance==SPI2)
+ {
+ /* USER CODE BEGIN SPI2_MspInit 0 */
+
+ /* USER CODE END SPI2_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_SPI2_CLK_ENABLE();
+
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ /**I2S2 GPIO Configuration
+ PC2 ------> I2S2_ext_SD
+ PC3 ------> I2S2_SD
+ PB10 ------> I2S2_CK
+ PB12 ------> I2S2_WS
+ */
+ GPIO_InitStruct.Pin = GPIO_PIN_2;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_I2S2ext;
+ HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = PDM_OUT_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
+ HAL_GPIO_Init(PDM_OUT_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = CLK_IN_Pin|GPIO_PIN_12;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN SPI2_MspInit 1 */
+
+ /* USER CODE END SPI2_MspInit 1 */
+ }
+ else if(hi2s->Instance==SPI3)
+ {
+ /* USER CODE BEGIN SPI3_MspInit 0 */
+
+ /* USER CODE END SPI3_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_SPI3_CLK_ENABLE();
+
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ /**I2S3 GPIO Configuration
+ PA4 ------> I2S3_WS
+ PC7 ------> I2S3_MCK
+ PC10 ------> I2S3_CK
+ PC12 ------> I2S3_SD
+ */
+ GPIO_InitStruct.Pin = I2S3_WS_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
+ HAL_GPIO_Init(I2S3_WS_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
+ HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN SPI3_MspInit 1 */
+
+ /* USER CODE END SPI3_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief I2S MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hi2s: I2S handle pointer
+* @retval None
+*/
+void HAL_I2S_MspDeInit(I2S_HandleTypeDef* hi2s)
+{
+ if(hi2s->Instance==SPI2)
+ {
+ /* USER CODE BEGIN SPI2_MspDeInit 0 */
+
+ /* USER CODE END SPI2_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_SPI2_CLK_DISABLE();
+
+ /**I2S2 GPIO Configuration
+ PC2 ------> I2S2_ext_SD
+ PC3 ------> I2S2_SD
+ PB10 ------> I2S2_CK
+ PB12 ------> I2S2_WS
+ */
+ HAL_GPIO_DeInit(GPIOC, GPIO_PIN_2|PDM_OUT_Pin);
+
+ HAL_GPIO_DeInit(GPIOB, CLK_IN_Pin|GPIO_PIN_12);
+
+ /* USER CODE BEGIN SPI2_MspDeInit 1 */
+
+ /* USER CODE END SPI2_MspDeInit 1 */
+ }
+ else if(hi2s->Instance==SPI3)
+ {
+ /* USER CODE BEGIN SPI3_MspDeInit 0 */
+
+ /* USER CODE END SPI3_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_SPI3_CLK_DISABLE();
+
+ /**I2S3 GPIO Configuration
+ PA4 ------> I2S3_WS
+ PC7 ------> I2S3_MCK
+ PC10 ------> I2S3_CK
+ PC12 ------> I2S3_SD
+ */
+ HAL_GPIO_DeInit(I2S3_WS_GPIO_Port, I2S3_WS_Pin);
+
+ HAL_GPIO_DeInit(GPIOC, I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin);
+
+ /* USER CODE BEGIN SPI3_MspDeInit 1 */
+
+ /* USER CODE END SPI3_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief SPI MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hspi: SPI handle pointer
+* @retval None
+*/
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hspi->Instance==SPI1)
+ {
+ /* USER CODE BEGIN SPI1_MspInit 0 */
+
+ /* USER CODE END SPI1_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_SPI1_CLK_ENABLE();
+
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ /**SPI1 GPIO Configuration
+ PA5 ------> SPI1_SCK
+ PA6 ------> SPI1_MISO
+ PA7 ------> SPI1_MOSI
+ */
+ GPIO_InitStruct.Pin = SPI1_SCK_Pin|SPI1_MISO_Pin|SPI1_MOSI_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN SPI1_MspInit 1 */
+
+ /* USER CODE END SPI1_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief SPI MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hspi: SPI handle pointer
+* @retval None
+*/
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
+{
+ if(hspi->Instance==SPI1)
+ {
+ /* USER CODE BEGIN SPI1_MspDeInit 0 */
+
+ /* USER CODE END SPI1_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_SPI1_CLK_DISABLE();
+
+ /**SPI1 GPIO Configuration
+ PA5 ------> SPI1_SCK
+ PA6 ------> SPI1_MISO
+ PA7 ------> SPI1_MOSI
+ */
+ HAL_GPIO_DeInit(GPIOA, SPI1_SCK_Pin|SPI1_MISO_Pin|SPI1_MOSI_Pin);
+
+ /* USER CODE BEGIN SPI1_MspDeInit 1 */
+
+ /* USER CODE END SPI1_MspDeInit 1 */
+ }
+
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/board.c b/ports/stm32f4/boards/stm32f412zg_discovery/board.c
new file mode 100644
index 000000000..4421970ee
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/board.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "boards/board.h"
+
+void board_init(void) {
+}
+
+bool board_requests_safe_mode(void) {
+ return false;
+}
+
+void reset_board(void) {
+
+}
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.h b/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.h
new file mode 100644
index 000000000..416944257
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+//Micropython setup
+
+#define MICROPY_HW_BOARD_NAME "STM32F412G_DISCO"
+#define MICROPY_HW_MCU_NAME "STM32F412xGS"
+
+#define FLASH_SIZE (0x100000)
+#define FLASH_PAGE_SIZE (0x4000)
+
+#define CIRCUITPY_INTERNAL_NVM_SIZE (4096)
+#define AUTORESET_DELAY_MS 500
+#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE) \ No newline at end of file
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.mk b/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.mk
new file mode 100644
index 000000000..444795874
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/mpconfigboard.mk
@@ -0,0 +1,13 @@
+USB_VID = 0x483
+USB_PID = 0x572B
+USB_PRODUCT = "STM32F412ZG Discovery Board - CPy"
+USB_MANUFACTURER = "STMicroelectronics"
+
+MCU_SERIES = m4
+MCU_VARIANT = stm32f4
+MCU_SUB_VARIANT = stm32f412zx
+CMSIS_MCU = STM32F412xG
+LD_FILE = boards/STM32F412ZGTx_FLASH.ld
+TEXT0_ADDR = 0x08000000
+TEXT1_ADDR = 0x08020000
+
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/pins.c b/ports/stm32f4/boards/stm32f412zg_discovery/pins.c
new file mode 100644
index 000000000..e3a4b5ed6
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/pins.c
@@ -0,0 +1,90 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+ { MP_ROM_QSTR(MP_QSTR_PE02), MP_ROM_PTR(&pin_PE02) },
+ { MP_ROM_QSTR(MP_QSTR_PE03), MP_ROM_PTR(&pin_PE03) },
+ { MP_ROM_QSTR(MP_QSTR_PE04), MP_ROM_PTR(&pin_PE04) },
+ { MP_ROM_QSTR(MP_QSTR_PE05), MP_ROM_PTR(&pin_PE05) },
+ { MP_ROM_QSTR(MP_QSTR_PE06), MP_ROM_PTR(&pin_PE06) },
+ { MP_ROM_QSTR(MP_QSTR_PC13), MP_ROM_PTR(&pin_PC13) },
+ { MP_ROM_QSTR(MP_QSTR_PF02), MP_ROM_PTR(&pin_PF02) },
+ { MP_ROM_QSTR(MP_QSTR_PF03), MP_ROM_PTR(&pin_PF03) },
+ { MP_ROM_QSTR(MP_QSTR_PF10), MP_ROM_PTR(&pin_PF10) },
+ { MP_ROM_QSTR(MP_QSTR_PC00), MP_ROM_PTR(&pin_PC00) },
+ { MP_ROM_QSTR(MP_QSTR_PC01), MP_ROM_PTR(&pin_PC01) },
+ { MP_ROM_QSTR(MP_QSTR_PC02), MP_ROM_PTR(&pin_PC02) },
+ { MP_ROM_QSTR(MP_QSTR_PC03), MP_ROM_PTR(&pin_PC03) },
+ { MP_ROM_QSTR(MP_QSTR_PA01), MP_ROM_PTR(&pin_PA01) },
+ { MP_ROM_QSTR(MP_QSTR_PA02), MP_ROM_PTR(&pin_PA02) },
+ { MP_ROM_QSTR(MP_QSTR_PA03), MP_ROM_PTR(&pin_PA03) },
+ { MP_ROM_QSTR(MP_QSTR_PA04), MP_ROM_PTR(&pin_PA04) },
+ { MP_ROM_QSTR(MP_QSTR_PA05), MP_ROM_PTR(&pin_PA05) },
+ { MP_ROM_QSTR(MP_QSTR_PA06), MP_ROM_PTR(&pin_PA06) },
+ { MP_ROM_QSTR(MP_QSTR_PA07), MP_ROM_PTR(&pin_PA07) },
+ { MP_ROM_QSTR(MP_QSTR_PC04), MP_ROM_PTR(&pin_PC04) },
+ { MP_ROM_QSTR(MP_QSTR_PC05), MP_ROM_PTR(&pin_PC05) },
+ { MP_ROM_QSTR(MP_QSTR_PB00), MP_ROM_PTR(&pin_PB00) },
+ { MP_ROM_QSTR(MP_QSTR_PB01), MP_ROM_PTR(&pin_PB01) },
+ { MP_ROM_QSTR(MP_QSTR_PF11), MP_ROM_PTR(&pin_PF11) },
+ { MP_ROM_QSTR(MP_QSTR_PF13), MP_ROM_PTR(&pin_PF13) },
+ { MP_ROM_QSTR(MP_QSTR_PB10), MP_ROM_PTR(&pin_PB10) },
+ { MP_ROM_QSTR(MP_QSTR_PB11), MP_ROM_PTR(&pin_PB11) },
+ { MP_ROM_QSTR(MP_QSTR_PB12), MP_ROM_PTR(&pin_PB12) },
+ { MP_ROM_QSTR(MP_QSTR_PB13), MP_ROM_PTR(&pin_PB13) },
+ { MP_ROM_QSTR(MP_QSTR_PB14), MP_ROM_PTR(&pin_PB14) },
+ { MP_ROM_QSTR(MP_QSTR_PB15), MP_ROM_PTR(&pin_PB15) },
+ { MP_ROM_QSTR(MP_QSTR_PD12), MP_ROM_PTR(&pin_PD12) },
+ { MP_ROM_QSTR(MP_QSTR_PD13), MP_ROM_PTR(&pin_PD13) },
+ { MP_ROM_QSTR(MP_QSTR_PG02), MP_ROM_PTR(&pin_PG02) },
+ { MP_ROM_QSTR(MP_QSTR_PC06), MP_ROM_PTR(&pin_PC06) },
+ { MP_ROM_QSTR(MP_QSTR_PC07), MP_ROM_PTR(&pin_PC07) },
+ { MP_ROM_QSTR(MP_QSTR_PC09), MP_ROM_PTR(&pin_PC09) },
+ { MP_ROM_QSTR(MP_QSTR_PA08), MP_ROM_PTR(&pin_PA08) },
+ { MP_ROM_QSTR(MP_QSTR_PA10), MP_ROM_PTR(&pin_PA10) },
+ { MP_ROM_QSTR(MP_QSTR_PA13), MP_ROM_PTR(&pin_PA13) },
+ { MP_ROM_QSTR(MP_QSTR_PA14), MP_ROM_PTR(&pin_PA14) },
+ { MP_ROM_QSTR(MP_QSTR_PA15), MP_ROM_PTR(&pin_PA15) },
+ { MP_ROM_QSTR(MP_QSTR_PD06), MP_ROM_PTR(&pin_PD06) },
+ { MP_ROM_QSTR(MP_QSTR_PG09), MP_ROM_PTR(&pin_PG09) },
+ { MP_ROM_QSTR(MP_QSTR_PG10), MP_ROM_PTR(&pin_PG10) },
+ { MP_ROM_QSTR(MP_QSTR_PG11), MP_ROM_PTR(&pin_PG11) },
+ { MP_ROM_QSTR(MP_QSTR_PG12), MP_ROM_PTR(&pin_PG12) },
+ { MP_ROM_QSTR(MP_QSTR_PG13), MP_ROM_PTR(&pin_PG13) },
+ { MP_ROM_QSTR(MP_QSTR_PG14), MP_ROM_PTR(&pin_PG14) },
+ { MP_ROM_QSTR(MP_QSTR_PB03), MP_ROM_PTR(&pin_PB03) },
+ { MP_ROM_QSTR(MP_QSTR_PB04), MP_ROM_PTR(&pin_PB04) },
+ { MP_ROM_QSTR(MP_QSTR_PB05), MP_ROM_PTR(&pin_PB05) },
+ { MP_ROM_QSTR(MP_QSTR_PB06), MP_ROM_PTR(&pin_PB06) },
+ { MP_ROM_QSTR(MP_QSTR_PB07), MP_ROM_PTR(&pin_PB07) },
+ { MP_ROM_QSTR(MP_QSTR_PB08), MP_ROM_PTR(&pin_PB08) },
+ { MP_ROM_QSTR(MP_QSTR_PB09), MP_ROM_PTR(&pin_PB09) },
+ { MP_ROM_QSTR(MP_QSTR_PE00), MP_ROM_PTR(&pin_PE00) },
+ { MP_ROM_QSTR(MP_QSTR_PE01), MP_ROM_PTR(&pin_PE01) },
+ { MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_PB10) },
+ { MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_PB09) },
+ { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_PA05) },
+ { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_PA06) },
+ { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_PA07) },
+ { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_PA15) },
+ { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_PB08) },
+ { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_PG10) },
+ { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_PG11) },
+ { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_PF03) },
+ { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_PF10) },
+ { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_PG12) },
+ { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_PF04) },
+ { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_PG13) },
+ { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_PG14) },
+ { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_PG09) },
+ { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_PA01) },
+ { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_PC01) },
+ { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_PC03) },
+ { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_PC04) },
+ { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_PC05) }, //alt PB09, see F401ZG-DISCO manual
+ { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_PB00) }, //alt PB10, see F401ZG-DISCO manual
+ { MP_ROM_QSTR(MP_QSTR_LED1), MP_ROM_PTR(&pin_PE00) },
+ { MP_ROM_QSTR(MP_QSTR_LED2), MP_ROM_PTR(&pin_PE01) },
+ { MP_ROM_QSTR(MP_QSTR_LED3), MP_ROM_PTR(&pin_PE02) },
+ { MP_ROM_QSTR(MP_QSTR_LED4), MP_ROM_PTR(&pin_PE03) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_conf.h b/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_conf.h
new file mode 100644
index 000000000..5d329c14f
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_conf.h
@@ -0,0 +1,439 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_conf_template.h
+ * @author MCD Application Team
+ * @brief HAL configuration template file.
+ * This file should be copied to the application folder and renamed
+ * to stm32f4xx_hal_conf.h.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_HAL_CONF_H
+#define __STM32F4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+ * @brief This is the list of modules to be used in the HAL driver
+ */
+#define HAL_MODULE_ENABLED
+
+ /* #define HAL_ADC_MODULE_ENABLED */
+/* #define HAL_CRYP_MODULE_ENABLED */
+/* #define HAL_CAN_MODULE_ENABLED */
+/* #define HAL_CRC_MODULE_ENABLED */
+/* #define HAL_CRYP_MODULE_ENABLED */
+/* #define HAL_DAC_MODULE_ENABLED */
+/* #define HAL_DCMI_MODULE_ENABLED */
+/* #define HAL_DMA2D_MODULE_ENABLED */
+/* #define HAL_ETH_MODULE_ENABLED */
+/* #define HAL_NAND_MODULE_ENABLED */
+/* #define HAL_NOR_MODULE_ENABLED */
+/* #define HAL_PCCARD_MODULE_ENABLED */
+#define HAL_SRAM_MODULE_ENABLED
+/* #define HAL_SDRAM_MODULE_ENABLED */
+/* #define HAL_HASH_MODULE_ENABLED */
+#define HAL_I2C_MODULE_ENABLED
+#define HAL_I2S_MODULE_ENABLED
+/* #define HAL_IWDG_MODULE_ENABLED */
+/* #define HAL_LTDC_MODULE_ENABLED */
+/* #define HAL_RNG_MODULE_ENABLED */
+/* #define HAL_RTC_MODULE_ENABLED */
+/* #define HAL_SAI_MODULE_ENABLED */
+#define HAL_SD_MODULE_ENABLED
+/* #define HAL_MMC_MODULE_ENABLED */
+/* #define HAL_SPI_MODULE_ENABLED */
+/* #define HAL_TIM_MODULE_ENABLED */
+#define HAL_UART_MODULE_ENABLED
+/* #define HAL_USART_MODULE_ENABLED */
+/* #define HAL_IRDA_MODULE_ENABLED */
+/* #define HAL_SMARTCARD_MODULE_ENABLED */
+/* #define HAL_WWDG_MODULE_ENABLED */
+#define HAL_PCD_MODULE_ENABLED
+/* #define HAL_HCD_MODULE_ENABLED */
+/* #define HAL_DSI_MODULE_ENABLED */
+/* #define HAL_QSPI_MODULE_ENABLED */
+#define HAL_QSPI_MODULE_ENABLED
+/* #define HAL_CEC_MODULE_ENABLED */
+/* #define HAL_FMPI2C_MODULE_ENABLED */
+/* #define HAL_SPDIFRX_MODULE_ENABLED */
+/* #define HAL_DFSDM_MODULE_ENABLED */
+/* #define HAL_LPTIM_MODULE_ENABLED */
+/* #define HAL_EXTI_MODULE_ENABLED */
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_EXTI_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+ * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSE is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000U) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (HSE_STARTUP_TIMEOUT)
+ #define HSE_STARTUP_TIMEOUT ((uint32_t)100U) /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal High Speed oscillator (HSI) value.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSI is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @brief Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE ((uint32_t)32000U) /*!< LSI Typical Value in Hz*/
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature.*/
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE ((uint32_t)32768U) /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+#if !defined (LSE_STARTUP_TIMEOUT)
+ #define LSE_STARTUP_TIMEOUT ((uint32_t)5000U) /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief External clock source for I2S peripheral
+ * This value is used by the I2S HAL module to compute the I2S clock source
+ * frequency, this source is inserted directly through I2S_CKIN pad.
+ */
+#if !defined (EXTERNAL_CLOCK_VALUE)
+ #define EXTERNAL_CLOCK_VALUE ((uint32_t)12288000U) /*!< Value of the External audio frequency in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+ === you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+ * @brief This is the HAL system configuration section
+ */
+#define VDD_VALUE ((uint32_t)3300U) /*!< Value of VDD in mv */
+#define TICK_INT_PRIORITY ((uint32_t)0U) /*!< tick interrupt priority */
+#define USE_RTOS 0U
+#define PREFETCH_ENABLE 1U
+#define INSTRUCTION_CACHE_ENABLE 1U
+#define DATA_CACHE_ENABLE 1U
+
+/* ########################## Assert Selection ############################## */
+/**
+ * @brief Uncomment the line below to expanse the "assert_param" macro in the
+ * HAL drivers code
+ */
+/* #define USE_FULL_ASSERT 1U */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0 2U
+#define MAC_ADDR1 0U
+#define MAC_ADDR2 0U
+#define MAC_ADDR3 0U
+#define MAC_ADDR4 0U
+#define MAC_ADDR5 0U
+
+/* Definition of the Ethernet driver buffers size and count */
+#define ETH_RX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for receive */
+#define ETH_TX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for transmit */
+#define ETH_RXBUFNB ((uint32_t)4U) /* 4 Rx buffers of size ETH_RX_BUF_SIZE */
+#define ETH_TXBUFNB ((uint32_t)4U) /* 4 Tx buffers of size ETH_TX_BUF_SIZE */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848_PHY_ADDRESS Address*/
+#define DP83848_PHY_ADDRESS 0x01U
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
+#define PHY_RESET_DELAY ((uint32_t)0x000000FFU)
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY ((uint32_t)0x00000FFFU)
+
+#define PHY_READ_TO ((uint32_t)0x0000FFFFU)
+#define PHY_WRITE_TO ((uint32_t)0x0000FFFFU)
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR ((uint16_t)0x0000U) /*!< Transceiver Basic Control Register */
+#define PHY_BSR ((uint16_t)0x0001U) /*!< Transceiver Basic Status Register */
+
+#define PHY_RESET ((uint16_t)0x8000U) /*!< PHY Reset */
+#define PHY_LOOPBACK ((uint16_t)0x4000U) /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M ((uint16_t)0x2100U) /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M ((uint16_t)0x2000U) /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M ((uint16_t)0x0100U) /*!< Set the full-duplex mode at 10 Mb/s */
+#define PHY_HALFDUPLEX_10M ((uint16_t)0x0000U) /*!< Set the half-duplex mode at 10 Mb/s */
+#define PHY_AUTONEGOTIATION ((uint16_t)0x1000U) /*!< Enable auto-negotiation function */
+#define PHY_RESTART_AUTONEGOTIATION ((uint16_t)0x0200U) /*!< Restart auto-negotiation function */
+#define PHY_POWERDOWN ((uint16_t)0x0800U) /*!< Select the power down mode */
+#define PHY_ISOLATE ((uint16_t)0x0400U) /*!< Isolate PHY from MII */
+
+#define PHY_AUTONEGO_COMPLETE ((uint16_t)0x0020U) /*!< Auto-Negotiation process completed */
+#define PHY_LINKED_STATUS ((uint16_t)0x0004U) /*!< Valid link established */
+#define PHY_JABBER_DETECTION ((uint16_t)0x0002U) /*!< Jabber condition detected */
+
+/* Section 4: Extended PHY Registers */
+#define PHY_SR ((uint16_t)0x10U) /*!< PHY status register Offset */
+
+#define PHY_SPEED_STATUS ((uint16_t)0x0002U) /*!< PHY Speed mask */
+#define PHY_DUPLEX_STATUS ((uint16_t)0x0004U) /*!< PHY Duplex mask */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC 0U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+ * @brief Include module's header file
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_EXTI_MODULE_ENABLED
+ #include "stm32f4xx_hal_exti.h"
+#endif /* HAL_EXTI_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+ #include "stm32f4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+ #include "stm32f4xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DMA2D_MODULE_ENABLED
+ #include "stm32f4xx_hal_dma2d.h"
+#endif /* HAL_DMA2D_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_DCMI_MODULE_ENABLED
+ #include "stm32f4xx_hal_dcmi.h"
+#endif /* HAL_DCMI_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+ #include "stm32f4xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32f4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32f4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32f4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */
+
+#ifdef HAL_SDRAM_MODULE_ENABLED
+ #include "stm32f4xx_hal_sdram.h"
+#endif /* HAL_SDRAM_MODULE_ENABLED */
+
+#ifdef HAL_HASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_hash.h"
+#endif /* HAL_HASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LTDC_MODULE_ENABLED
+ #include "stm32f4xx_hal_ltdc.h"
+#endif /* HAL_LTDC_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32f4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32f4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_MMC_MODULE_ENABLED
+ #include "stm32f4xx_hal_mmc.h"
+#endif /* HAL_MMC_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+#ifdef HAL_DSI_MODULE_ENABLED
+ #include "stm32f4xx_hal_dsi.h"
+#endif /* HAL_DSI_MODULE_ENABLED */
+
+#ifdef HAL_QSPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_qspi.h"
+#endif /* HAL_QSPI_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f4xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_FMPI2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_fmpi2c.h"
+#endif /* HAL_FMPI2C_MODULE_ENABLED */
+
+#ifdef HAL_SPDIFRX_MODULE_ENABLED
+ #include "stm32f4xx_hal_spdifrx.h"
+#endif /* HAL_SPDIFRX_MODULE_ENABLED */
+
+#ifdef HAL_DFSDM_MODULE_ENABLED
+ #include "stm32f4xx_hal_dfsdm.h"
+#endif /* HAL_DFSDM_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function
+ * which reports the name of the source file and the source
+ * line number of the call that failed.
+ * If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(uint8_t* file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_msp.c b/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_msp.c
new file mode 100644
index 000000000..9d29f3607
--- /dev/null
+++ b/ports/stm32f4/boards/stm32f412zg_discovery/stm32f4xx_hal_msp.c
@@ -0,0 +1,832 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * File Name : stm32f4xx_hal_msp.c
+ * Description : This file provides code for the MSP Initialization
+ * and de-Initialization codes.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under Ultimate Liberty license
+ * SLA0044, the "License"; You may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * www.st.com/SLA0044
+ *
+ ******************************************************************************
+ */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN Define */
+#define LED3_Pin GPIO_PIN_2
+#define LED3_GPIO_Port GPIOE
+#define LED4_Pin GPIO_PIN_3
+#define LED4_GPIO_Port GPIOE
+#define DFSDM_DATIN3_Pin GPIO_PIN_4
+#define DFSDM_DATIN3_GPIO_Port GPIOE
+#define A0_Pin GPIO_PIN_0
+#define A0_GPIO_Port GPIOF
+#define LCD_BLCTRL_Pin GPIO_PIN_5
+#define LCD_BLCTRL_GPIO_Port GPIOF
+#define QSPI_BK1_IO3_Pin GPIO_PIN_6
+#define QSPI_BK1_IO3_GPIO_Port GPIOF
+#define QSPI_BK1_IO2_Pin GPIO_PIN_7
+#define QSPI_BK1_IO2_GPIO_Port GPIOF
+#define QSPI_BK1_IO0_Pin GPIO_PIN_8
+#define QSPI_BK1_IO0_GPIO_Port GPIOF
+#define QSPI_BK1_IO1_Pin GPIO_PIN_9
+#define QSPI_BK1_IO1_GPIO_Port GPIOF
+#define STLK_MCO_Pin GPIO_PIN_0
+#define STLK_MCO_GPIO_Port GPIOH
+#define DFSDM_CKOUT_Pin GPIO_PIN_2
+#define DFSDM_CKOUT_GPIO_Port GPIOC
+#define JOY_SEL_Pin GPIO_PIN_0
+#define JOY_SEL_GPIO_Port GPIOA
+#define STLINK_RX_Pin GPIO_PIN_2
+#define STLINK_RX_GPIO_Port GPIOA
+#define STLINK_TX_Pin GPIO_PIN_3
+#define STLINK_TX_GPIO_Port GPIOA
+#define CODEC_I2S3_WS_Pin GPIO_PIN_4
+#define CODEC_I2S3_WS_GPIO_Port GPIOA
+#define DFSDM_DATIN0_Pin GPIO_PIN_1
+#define DFSDM_DATIN0_GPIO_Port GPIOB
+#define QSPI_CLK_Pin GPIO_PIN_2
+#define QSPI_CLK_GPIO_Port GPIOB
+#define EXT_RESET_Pin GPIO_PIN_11
+#define EXT_RESET_GPIO_Port GPIOF
+#define CTP_RST_Pin GPIO_PIN_12
+#define CTP_RST_GPIO_Port GPIOF
+#define JOY_RIGHT_Pin GPIO_PIN_14
+#define JOY_RIGHT_GPIO_Port GPIOF
+#define JOY_LEFT_Pin GPIO_PIN_15
+#define JOY_LEFT_GPIO_Port GPIOF
+#define JOY_UP_Pin GPIO_PIN_0
+#define JOY_UP_GPIO_Port GPIOG
+#define JOY_DOWN_Pin GPIO_PIN_1
+#define JOY_DOWN_GPIO_Port GPIOG
+#define D4_Pin GPIO_PIN_7
+#define D4_GPIO_Port GPIOE
+#define D5_Pin GPIO_PIN_8
+#define D5_GPIO_Port GPIOE
+#define D6_Pin GPIO_PIN_9
+#define D6_GPIO_Port GPIOE
+#define D7_Pin GPIO_PIN_10
+#define D7_GPIO_Port GPIOE
+#define D8_Pin GPIO_PIN_11
+#define D8_GPIO_Port GPIOE
+#define D9_Pin GPIO_PIN_12
+#define D9_GPIO_Port GPIOE
+#define D10_Pin GPIO_PIN_13
+#define D10_GPIO_Port GPIOE
+#define D11_Pin GPIO_PIN_14
+#define D11_GPIO_Port GPIOE
+#define D12_Pin GPIO_PIN_15
+#define D12_GPIO_Port GPIOE
+#define I2C2_SCL_Pin GPIO_PIN_10
+#define I2C2_SCL_GPIO_Port GPIOB
+#define M2_CKIN_Pin GPIO_PIN_11
+#define M2_CKIN_GPIO_Port GPIOB
+#define CODEC_I2S3_SCK_Pin GPIO_PIN_12
+#define CODEC_I2S3_SCK_GPIO_Port GPIOB
+#define D13_Pin GPIO_PIN_8
+#define D13_GPIO_Port GPIOD
+#define D14_Pin GPIO_PIN_9
+#define D14_GPIO_Port GPIOD
+#define D15_Pin GPIO_PIN_10
+#define D15_GPIO_Port GPIOD
+#define LCD_RESET_Pin GPIO_PIN_11
+#define LCD_RESET_GPIO_Port GPIOD
+#define D0_Pin GPIO_PIN_14
+#define D0_GPIO_Port GPIOD
+#define D1_Pin GPIO_PIN_15
+#define D1_GPIO_Port GPIOD
+#define CODEC_INT_Pin GPIO_PIN_2
+#define CODEC_INT_GPIO_Port GPIOG
+#define LCD_TE_Pin GPIO_PIN_4
+#define LCD_TE_GPIO_Port GPIOG
+#define CTP_INT_Pin GPIO_PIN_5
+#define CTP_INT_GPIO_Port GPIOG
+#define QSPI_BK1_NCS_Pin GPIO_PIN_6
+#define QSPI_BK1_NCS_GPIO_Port GPIOG
+#define USB_OTGFS_OVRCR_Pin GPIO_PIN_7
+#define USB_OTGFS_OVRCR_GPIO_Port GPIOG
+#define USB_OTGFS_PPWR_EN_Pin GPIO_PIN_8
+#define USB_OTGFS_PPWR_EN_GPIO_Port GPIOG
+#define CODEC_I2S3_MCK_Pin GPIO_PIN_7
+#define CODEC_I2S3_MCK_GPIO_Port GPIOC
+#define uSD_D0_Pin GPIO_PIN_8
+#define uSD_D0_GPIO_Port GPIOC
+#define uSD_D1_Pin GPIO_PIN_9
+#define uSD_D1_GPIO_Port GPIOC
+#define M2_CKINA8_Pin GPIO_PIN_8
+#define M2_CKINA8_GPIO_Port GPIOA
+#define USB_OTGFS_VBUS_Pin GPIO_PIN_9
+#define USB_OTGFS_VBUS_GPIO_Port GPIOA
+#define USB_OTGFS_ID_Pin GPIO_PIN_10
+#define USB_OTGFS_ID_GPIO_Port GPIOA
+#define USB_OTGFS_DM_Pin GPIO_PIN_11
+#define USB_OTGFS_DM_GPIO_Port GPIOA
+#define USB_OTGFS_DP_Pin GPIO_PIN_12
+#define USB_OTGFS_DP_GPIO_Port GPIOA
+#define SWDIO_Pin GPIO_PIN_13
+#define SWDIO_GPIO_Port GPIOA
+#define SWCLK_Pin GPIO_PIN_14
+#define SWCLK_GPIO_Port GPIOA
+#define uSD_D2_Pin GPIO_PIN_10
+#define uSD_D2_GPIO_Port GPIOC
+#define uSD_D3_Pin GPIO_PIN_11
+#define uSD_D3_GPIO_Port GPIOC
+#define uSD_CLK_Pin GPIO_PIN_12
+#define uSD_CLK_GPIO_Port GPIOC
+#define D2_Pin GPIO_PIN_0
+#define D2_GPIO_Port GPIOD
+#define D3_Pin GPIO_PIN_1
+#define D3_GPIO_Port GPIOD
+#define uSD_CMD_Pin GPIO_PIN_2
+#define uSD_CMD_GPIO_Port GPIOD
+#define uSD_DETECT_Pin GPIO_PIN_3
+#define uSD_DETECT_GPIO_Port GPIOD
+#define FMC_NOE_Pin GPIO_PIN_4
+#define FMC_NOE_GPIO_Port GPIOD
+#define FMC_NWE_Pin GPIO_PIN_5
+#define FMC_NWE_GPIO_Port GPIOD
+#define FMC_NE1_Pin GPIO_PIN_7
+#define FMC_NE1_GPIO_Port GPIOD
+#define SWO_Pin GPIO_PIN_3
+#define SWO_GPIO_Port GPIOB
+#define CODEC_I2S3ext_SD_Pin GPIO_PIN_4
+#define CODEC_I2S3ext_SD_GPIO_Port GPIOB
+#define CODEC_I2S3_SD_Pin GPIO_PIN_5
+#define CODEC_I2S3_SD_GPIO_Port GPIOB
+#define I2C1_SCL_Pin GPIO_PIN_6
+#define I2C1_SCL_GPIO_Port GPIOB
+#define I2C1_SDA_Pin GPIO_PIN_7
+#define I2C1_SDA_GPIO_Port GPIOB
+#define I2C2_SDA_Pin GPIO_PIN_9
+#define I2C2_SDA_GPIO_Port GPIOB
+#define LED1_Pin GPIO_PIN_0
+#define LED1_GPIO_Port GPIOE
+#define LED2_Pin GPIO_PIN_1
+#define LED2_GPIO_Port GPIOE
+
+/* USER CODE END Define */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN Macro */
+
+/* USER CODE END Macro */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* External functions --------------------------------------------------------*/
+/* USER CODE BEGIN ExternalFunctions */
+
+/* USER CODE END ExternalFunctions */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+/**
+ * Initializes the Global MSP.
+ */
+void HAL_MspInit(void)
+{
+ /* USER CODE BEGIN MspInit 0 */
+
+ /* USER CODE END MspInit 0 */
+
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+ __HAL_RCC_PWR_CLK_ENABLE();
+
+ /* System interrupt init*/
+
+ /* USER CODE BEGIN MspInit 1 */
+
+ /* USER CODE END MspInit 1 */
+}
+
+/**
+* @brief I2C MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hi2c: I2C handle pointer
+* @retval None
+*/
+void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hi2c->Instance==I2C1)
+ {
+ /* USER CODE BEGIN I2C1_MspInit 0 */
+
+ /* USER CODE END I2C1_MspInit 0 */
+
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ /**I2C1 GPIO Configuration
+ PB6 ------> I2C1_SCL
+ PB7 ------> I2C1_SDA
+ */
+ GPIO_InitStruct.Pin = I2C1_SCL_Pin|I2C1_SDA_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ /* Peripheral clock enable */
+ __HAL_RCC_I2C1_CLK_ENABLE();
+ /* USER CODE BEGIN I2C1_MspInit 1 */
+
+ /* USER CODE END I2C1_MspInit 1 */
+ }
+ else if(hi2c->Instance==I2C2)
+ {
+ /* USER CODE BEGIN I2C2_MspInit 0 */
+
+ /* USER CODE END I2C2_MspInit 0 */
+
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ /**I2C2 GPIO Configuration
+ PB10 ------> I2C2_SCL
+ PB9 ------> I2C2_SDA
+ */
+ GPIO_InitStruct.Pin = I2C2_SCL_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
+ HAL_GPIO_Init(I2C2_SCL_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = I2C2_SDA_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF9_I2C2;
+ HAL_GPIO_Init(I2C2_SDA_GPIO_Port, &GPIO_InitStruct);
+
+ /* Peripheral clock enable */
+ __HAL_RCC_I2C2_CLK_ENABLE();
+ /* USER CODE BEGIN I2C2_MspInit 1 */
+
+ /* USER CODE END I2C2_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief I2C MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hi2c: I2C handle pointer
+* @retval None
+*/
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
+{
+ if(hi2c->Instance==I2C1)
+ {
+ /* USER CODE BEGIN I2C1_MspDeInit 0 */
+
+ /* USER CODE END I2C1_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_I2C1_CLK_DISABLE();
+
+ /**I2C1 GPIO Configuration
+ PB6 ------> I2C1_SCL
+ PB7 ------> I2C1_SDA
+ */
+ HAL_GPIO_DeInit(GPIOB, I2C1_SCL_Pin|I2C1_SDA_Pin);
+
+ /* USER CODE BEGIN I2C1_MspDeInit 1 */
+
+ /* USER CODE END I2C1_MspDeInit 1 */
+ }
+ else if(hi2c->Instance==I2C2)
+ {
+ /* USER CODE BEGIN I2C2_MspDeInit 0 */
+
+ /* USER CODE END I2C2_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_I2C2_CLK_DISABLE();
+
+ /**I2C2 GPIO Configuration
+ PB10 ------> I2C2_SCL
+ PB9 ------> I2C2_SDA
+ */
+ HAL_GPIO_DeInit(GPIOB, I2C2_SCL_Pin|I2C2_SDA_Pin);
+
+ /* USER CODE BEGIN I2C2_MspDeInit 1 */
+
+ /* USER CODE END I2C2_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief I2S MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hi2s: I2S handle pointer
+* @retval None
+*/
+void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hi2s->Instance==SPI3)
+ {
+ /* USER CODE BEGIN SPI3_MspInit 0 */
+
+ /* USER CODE END SPI3_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_SPI3_CLK_ENABLE();
+
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ /**I2S3 GPIO Configuration
+ PA4 ------> I2S3_WS
+ PB12 ------> I2S3_CK
+ PC7 ------> I2S3_MCK
+ PB4 ------> I2S3_ext_SD
+ PB5 ------> I2S3_SD
+ */
+ GPIO_InitStruct.Pin = CODEC_I2S3_WS_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
+ HAL_GPIO_Init(CODEC_I2S3_WS_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = CODEC_I2S3_SCK_Pin|CODEC_I2S3ext_SD_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF7_SPI3;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = CODEC_I2S3_MCK_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
+ HAL_GPIO_Init(CODEC_I2S3_MCK_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = CODEC_I2S3_SD_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
+ HAL_GPIO_Init(CODEC_I2S3_SD_GPIO_Port, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN SPI3_MspInit 1 */
+
+ /* USER CODE END SPI3_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief I2S MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hi2s: I2S handle pointer
+* @retval None
+*/
+void HAL_I2S_MspDeInit(I2S_HandleTypeDef* hi2s)
+{
+ if(hi2s->Instance==SPI3)
+ {
+ /* USER CODE BEGIN SPI3_MspDeInit 0 */
+
+ /* USER CODE END SPI3_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_SPI3_CLK_DISABLE();
+
+ /**I2S3 GPIO Configuration
+ PA4 ------> I2S3_WS
+ PB12 ------> I2S3_CK
+ PC7 ------> I2S3_MCK
+ PB4 ------> I2S3_ext_SD
+ PB5 ------> I2S3_SD
+ */
+ HAL_GPIO_DeInit(CODEC_I2S3_WS_GPIO_Port, CODEC_I2S3_WS_Pin);
+
+ HAL_GPIO_DeInit(GPIOB, CODEC_I2S3_SCK_Pin|CODEC_I2S3ext_SD_Pin|CODEC_I2S3_SD_Pin);
+
+ HAL_GPIO_DeInit(CODEC_I2S3_MCK_GPIO_Port, CODEC_I2S3_MCK_Pin);
+
+ /* USER CODE BEGIN SPI3_MspDeInit 1 */
+
+ /* USER CODE END SPI3_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief QSPI MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hqspi: QSPI handle pointer
+* @retval None
+*/
+void HAL_QSPI_MspInit(QSPI_HandleTypeDef* hqspi)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hqspi->Instance==QUADSPI)
+ {
+ /* USER CODE BEGIN QUADSPI_MspInit 0 */
+
+ /* USER CODE END QUADSPI_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_QSPI_CLK_ENABLE();
+
+ __HAL_RCC_GPIOF_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ __HAL_RCC_GPIOG_CLK_ENABLE();
+ /**QUADSPI GPIO Configuration
+ PF6 ------> QUADSPI_BK1_IO3
+ PF7 ------> QUADSPI_BK1_IO2
+ PF8 ------> QUADSPI_BK1_IO0
+ PF9 ------> QUADSPI_BK1_IO1
+ PB2 ------> QUADSPI_CLK
+ PG6 ------> QUADSPI_BK1_NCS
+ */
+ GPIO_InitStruct.Pin = QSPI_BK1_IO3_Pin|QSPI_BK1_IO2_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF9_QSPI;
+ HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = QSPI_BK1_IO0_Pin|QSPI_BK1_IO1_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+ HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = QSPI_CLK_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF9_QSPI;
+ HAL_GPIO_Init(QSPI_CLK_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = QSPI_BK1_NCS_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+ HAL_GPIO_Init(QSPI_BK1_NCS_GPIO_Port, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN QUADSPI_MspInit 1 */
+
+ /* USER CODE END QUADSPI_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief QSPI MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hqspi: QSPI handle pointer
+* @retval None
+*/
+void HAL_QSPI_MspDeInit(QSPI_HandleTypeDef* hqspi)
+{
+ if(hqspi->Instance==QUADSPI)
+ {
+ /* USER CODE BEGIN QUADSPI_MspDeInit 0 */
+
+ /* USER CODE END QUADSPI_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_QSPI_CLK_DISABLE();
+
+ /**QUADSPI GPIO Configuration
+ PF6 ------> QUADSPI_BK1_IO3
+ PF7 ------> QUADSPI_BK1_IO2
+ PF8 ------> QUADSPI_BK1_IO0
+ PF9 ------> QUADSPI_BK1_IO1
+ PB2 ------> QUADSPI_CLK
+ PG6 ------> QUADSPI_BK1_NCS
+ */
+ HAL_GPIO_DeInit(GPIOF, QSPI_BK1_IO3_Pin|QSPI_BK1_IO2_Pin|QSPI_BK1_IO0_Pin|QSPI_BK1_IO1_Pin);
+
+ HAL_GPIO_DeInit(QSPI_CLK_GPIO_Port, QSPI_CLK_Pin);
+
+ HAL_GPIO_DeInit(QSPI_BK1_NCS_GPIO_Port, QSPI_BK1_NCS_Pin);
+
+ /* USER CODE BEGIN QUADSPI_MspDeInit 1 */
+
+ /* USER CODE END QUADSPI_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief SD MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hsd: SD handle pointer
+* @retval None
+*/
+void HAL_SD_MspInit(SD_HandleTypeDef* hsd)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hsd->Instance==SDIO)
+ {
+ /* USER CODE BEGIN SDIO_MspInit 0 */
+
+ /* USER CODE END SDIO_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_SDIO_CLK_ENABLE();
+
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ __HAL_RCC_GPIOD_CLK_ENABLE();
+ /**SDIO GPIO Configuration
+ PC8 ------> SDIO_D0
+ PC9 ------> SDIO_D1
+ PC10 ------> SDIO_D2
+ PC11 ------> SDIO_D3
+ PC12 ------> SDIO_CK
+ PD2 ------> SDIO_CMD
+ */
+ GPIO_InitStruct.Pin = uSD_D0_Pin|uSD_D1_Pin|uSD_D2_Pin|uSD_D3_Pin
+ |uSD_CLK_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
+ HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = uSD_CMD_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
+ HAL_GPIO_Init(uSD_CMD_GPIO_Port, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN SDIO_MspInit 1 */
+
+ /* USER CODE END SDIO_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief SD MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hsd: SD handle pointer
+* @retval None
+*/
+void HAL_SD_MspDeInit(SD_HandleTypeDef* hsd)
+{
+ if(hsd->Instance==SDIO)
+ {
+ /* USER CODE BEGIN SDIO_MspDeInit 0 */
+
+ /* USER CODE END SDIO_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_SDIO_CLK_DISABLE();
+
+ /**SDIO GPIO Configuration
+ PC8 ------> SDIO_D0
+ PC9 ------> SDIO_D1
+ PC10 ------> SDIO_D2
+ PC11 ------> SDIO_D3
+ PC12 ------> SDIO_CK
+ PD2 ------> SDIO_CMD
+ */
+ HAL_GPIO_DeInit(GPIOC, uSD_D0_Pin|uSD_D1_Pin|uSD_D2_Pin|uSD_D3_Pin
+ |uSD_CLK_Pin);
+
+ HAL_GPIO_DeInit(uSD_CMD_GPIO_Port, uSD_CMD_Pin);
+
+ /* USER CODE BEGIN SDIO_MspDeInit 1 */
+
+ /* USER CODE END SDIO_MspDeInit 1 */
+ }
+
+}
+
+/**
+* @brief UART MSP Initialization
+* This function configures the hardware resources used in this example
+* @param huart: UART handle pointer
+* @retval None
+*/
+void HAL_UART_MspInit(UART_HandleTypeDef* huart)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(huart->Instance==USART2)
+ {
+ /* USER CODE BEGIN USART2_MspInit 0 */
+
+ /* USER CODE END USART2_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_USART2_CLK_ENABLE();
+
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ /**USART2 GPIO Configuration
+ PA2 ------> USART2_TX
+ PA3 ------> USART2_RX
+ */
+ GPIO_InitStruct.Pin = STLINK_RX_Pin|STLINK_TX_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN USART2_MspInit 1 */
+
+ /* USER CODE END USART2_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief UART MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param huart: UART handle pointer
+* @retval None
+*/
+void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
+{
+ if(huart->Instance==USART2)
+ {
+ /* USER CODE BEGIN USART2_MspDeInit 0 */
+
+ /* USER CODE END USART2_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_USART2_CLK_DISABLE();
+
+ /**USART2 GPIO Configuration
+ PA2 ------> USART2_TX
+ PA3 ------> USART2_RX
+ */
+ HAL_GPIO_DeInit(GPIOA, STLINK_RX_Pin|STLINK_TX_Pin);
+
+ /* USER CODE BEGIN USART2_MspDeInit 1 */
+
+ /* USER CODE END USART2_MspDeInit 1 */
+ }
+
+}
+
+static uint32_t FSMC_Initialized = 0;
+
+static void HAL_FSMC_MspInit(void){
+ /* USER CODE BEGIN FSMC_MspInit 0 */
+
+ /* USER CODE END FSMC_MspInit 0 */
+ GPIO_InitTypeDef GPIO_InitStruct ={0};
+ if (FSMC_Initialized) {
+ return;
+ }
+ FSMC_Initialized = 1;
+ /* Peripheral clock enable */
+ __HAL_RCC_FSMC_CLK_ENABLE();
+
+ /** FSMC GPIO Configuration
+ PF0 ------> FSMC_A0
+ PE7 ------> FSMC_D4
+ PE8 ------> FSMC_D5
+ PE9 ------> FSMC_D6
+ PE10 ------> FSMC_D7
+ PE11 ------> FSMC_D8
+ PE12 ------> FSMC_D9
+ PE13 ------> FSMC_D10
+ PE14 ------> FSMC_D11
+ PE15 ------> FSMC_D12
+ PD8 ------> FSMC_D13
+ PD9 ------> FSMC_D14
+ PD10 ------> FSMC_D15
+ PD14 ------> FSMC_D0
+ PD15 ------> FSMC_D1
+ PD0 ------> FSMC_D2
+ PD1 ------> FSMC_D3
+ PD4 ------> FSMC_NOE
+ PD5 ------> FSMC_NWE
+ PD7 ------> FSMC_NE1
+ */
+ GPIO_InitStruct.Pin = A0_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF12_FSMC;
+ HAL_GPIO_Init(A0_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = D4_Pin|D5_Pin|D6_Pin|D7_Pin
+ |D8_Pin|D9_Pin|D10_Pin|D11_Pin
+ |D12_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF12_FSMC;
+ HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = D13_Pin|D14_Pin|D15_Pin|D0_Pin
+ |D1_Pin|D2_Pin|D3_Pin|FMC_NOE_Pin
+ |FMC_NWE_Pin|FMC_NE1_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF12_FSMC;
+ HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
+
+ /* USER CODE BEGIN FSMC_MspInit 1 */
+
+ /* USER CODE END FSMC_MspInit 1 */
+}
+
+void HAL_SRAM_MspInit(SRAM_HandleTypeDef* hsram){
+ /* USER CODE BEGIN SRAM_MspInit 0 */
+
+ /* USER CODE END SRAM_MspInit 0 */
+ HAL_FSMC_MspInit();
+ /* USER CODE BEGIN SRAM_MspInit 1 */
+
+ /* USER CODE END SRAM_MspInit 1 */
+}
+
+static uint32_t FSMC_DeInitialized = 0;
+
+static void HAL_FSMC_MspDeInit(void){
+ /* USER CODE BEGIN FSMC_MspDeInit 0 */
+
+ /* USER CODE END FSMC_MspDeInit 0 */
+ if (FSMC_DeInitialized) {
+ return;
+ }
+ FSMC_DeInitialized = 1;
+ /* Peripheral clock enable */
+ __HAL_RCC_FSMC_CLK_DISABLE();
+
+ /** FSMC GPIO Configuration
+ PF0 ------> FSMC_A0
+ PE7 ------> FSMC_D4
+ PE8 ------> FSMC_D5
+ PE9 ------> FSMC_D6
+ PE10 ------> FSMC_D7
+ PE11 ------> FSMC_D8
+ PE12 ------> FSMC_D9
+ PE13 ------> FSMC_D10
+ PE14 ------> FSMC_D11
+ PE15 ------> FSMC_D12
+ PD8 ------> FSMC_D13
+ PD9 ------> FSMC_D14
+ PD10 ------> FSMC_D15
+ PD14 ------> FSMC_D0
+ PD15 ------> FSMC_D1
+ PD0 ------> FSMC_D2
+ PD1 ------> FSMC_D3
+ PD4 ------> FSMC_NOE
+ PD5 ------> FSMC_NWE
+ PD7 ------> FSMC_NE1
+ */
+ HAL_GPIO_DeInit(A0_GPIO_Port, A0_Pin);
+
+ HAL_GPIO_DeInit(GPIOE, D4_Pin|D5_Pin|D6_Pin|D7_Pin
+ |D8_Pin|D9_Pin|D10_Pin|D11_Pin
+ |D12_Pin);
+
+ HAL_GPIO_DeInit(GPIOD, D13_Pin|D14_Pin|D15_Pin|D0_Pin
+ |D1_Pin|D2_Pin|D3_Pin|FMC_NOE_Pin
+ |FMC_NWE_Pin|FMC_NE1_Pin);
+
+ /* USER CODE BEGIN FSMC_MspDeInit 1 */
+
+ /* USER CODE END FSMC_MspDeInit 1 */
+}
+
+void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef* hsram){
+ /* USER CODE BEGIN SRAM_MspDeInit 0 */
+
+ /* USER CODE END SRAM_MspDeInit 0 */
+ HAL_FSMC_MspDeInit();
+ /* USER CODE BEGIN SRAM_MspDeInit 1 */
+
+ /* USER CODE END SRAM_MspDeInit 1 */
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/common-hal/board/__init__.c b/ports/stm32f4/common-hal/board/__init__.c
new file mode 100644
index 000000000..880033ed6
--- /dev/null
+++ b/ports/stm32f4/common-hal/board/__init__.c
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
diff --git a/ports/stm32f4/common-hal/digitalio/DigitalInOut.c b/ports/stm32f4/common-hal/digitalio/DigitalInOut.c
new file mode 100644
index 000000000..0805779f4
--- /dev/null
+++ b/ports/stm32f4/common-hal/digitalio/DigitalInOut.c
@@ -0,0 +1,159 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/digitalio/DigitalInOut.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_ll_gpio.h"
+
+void common_hal_digitalio_digitalinout_never_reset(
+ digitalio_digitalinout_obj_t *self) {
+ never_reset_pin_number(self->pin->port_number, self->pin->number);
+}
+
+digitalinout_result_t common_hal_digitalio_digitalinout_construct(
+ digitalio_digitalinout_obj_t *self, const mcu_pin_obj_t *pin) {
+
+ claim_pin(pin);
+ self->pin = pin;
+
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ GPIO_InitStruct.Pin = (1 << pin->number);
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ HAL_GPIO_Init(pin->port, &GPIO_InitStruct);
+
+ return DIGITALINOUT_OK;
+}
+
+bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t *self) {
+ return self->pin == mp_const_none;
+}
+
+void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self) {
+ if (common_hal_digitalio_digitalinout_deinited(self)) {
+ return;
+ }
+
+ reset_pin_number(self->pin->port_number, self->pin->number);
+ self->pin = mp_const_none;
+}
+
+void common_hal_digitalio_digitalinout_switch_to_input(
+ digitalio_digitalinout_obj_t *self, digitalio_pull_t pull) {
+
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ GPIO_InitStruct.Pin = (1 << self->pin->number);
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ HAL_GPIO_Init(self->pin->port, &GPIO_InitStruct);
+
+ common_hal_digitalio_digitalinout_set_pull(self, pull);
+}
+
+void common_hal_digitalio_digitalinout_switch_to_output(
+ digitalio_digitalinout_obj_t *self, bool value,
+ digitalio_drive_mode_t drive_mode) {
+
+ common_hal_digitalio_digitalinout_set_drive_mode(self, drive_mode);
+ common_hal_digitalio_digitalinout_set_value(self, value);
+}
+
+digitalio_direction_t common_hal_digitalio_digitalinout_get_direction(
+ digitalio_digitalinout_obj_t *self) {
+
+ return (LL_GPIO_GetPinMode(self->pin->port, (1 << self->pin->number))
+ == LL_GPIO_MODE_INPUT) ? DIRECTION_INPUT : DIRECTION_OUTPUT;
+}
+
+void common_hal_digitalio_digitalinout_set_value(
+ digitalio_digitalinout_obj_t *self, bool value) {
+ HAL_GPIO_WritePin(self->pin->port, 1 << self->pin->number, value);
+}
+
+bool common_hal_digitalio_digitalinout_get_value(
+ digitalio_digitalinout_obj_t *self) {
+ return (LL_GPIO_GetPinMode(self->pin->port, (1 << self->pin->number)) == LL_GPIO_MODE_INPUT)
+ ? HAL_GPIO_ReadPin(self->pin->port, (1 << self->pin->number))
+ : LL_GPIO_IsOutputPinSet(self->pin->port, (1 << self->pin->number));
+}
+
+void common_hal_digitalio_digitalinout_set_drive_mode(
+ digitalio_digitalinout_obj_t *self,
+ digitalio_drive_mode_t drive_mode) {
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ GPIO_InitStruct.Pin = (1 << self->pin->number);
+ GPIO_InitStruct.Mode = (drive_mode == DRIVE_MODE_OPEN_DRAIN ?
+ GPIO_MODE_OUTPUT_OD : GPIO_MODE_OUTPUT_PP);
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ HAL_GPIO_Init(self->pin->port, &GPIO_InitStruct);
+}
+
+digitalio_drive_mode_t common_hal_digitalio_digitalinout_get_drive_mode(
+ digitalio_digitalinout_obj_t *self) {
+
+ return LL_GPIO_GetPinOutputType(self->pin->port, (1 << self->pin->port_number))
+ == LL_GPIO_OUTPUT_OPENDRAIN ? DRIVE_MODE_OPEN_DRAIN : DRIVE_MODE_PUSH_PULL;
+}
+
+void common_hal_digitalio_digitalinout_set_pull(
+ digitalio_digitalinout_obj_t *self, digitalio_pull_t pull) {
+
+ switch (pull) {
+ case PULL_UP:
+ LL_GPIO_SetPinPull(self->pin->port,(1 << self->pin->number),LL_GPIO_PULL_UP);
+ break;
+ case PULL_DOWN:
+ LL_GPIO_SetPinPull(self->pin->port,(1 << self->pin->number),LL_GPIO_PULL_DOWN);
+ break;
+ case PULL_NONE:
+ LL_GPIO_SetPinPull(self->pin->port,(1 << self->pin->number),LL_GPIO_PULL_NO);
+ break;
+ default:
+ break;
+ }
+}
+
+digitalio_pull_t common_hal_digitalio_digitalinout_get_pull(
+ digitalio_digitalinout_obj_t *self) {
+
+
+ switch (LL_GPIO_GetPinPull(self->pin->port,(1 << self->pin->number))) {
+ case LL_GPIO_PULL_UP:
+ return PULL_UP;
+ case LL_GPIO_PULL_DOWN:
+ return PULL_DOWN;
+ case LL_GPIO_PULL_NO:
+ return PULL_NONE;
+ default:
+ return PULL_NONE;
+ }
+}
diff --git a/ports/stm32f4/common-hal/digitalio/DigitalInOut.h b/ports/stm32f4/common-hal/digitalio/DigitalInOut.h
new file mode 100644
index 000000000..76aa2c855
--- /dev/null
+++ b/ports/stm32f4/common-hal/digitalio/DigitalInOut.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+#define MICROPY_INCLUDED_STM32F4_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+typedef struct {
+ mp_obj_base_t base;
+ const mcu_pin_obj_t *pin;
+} digitalio_digitalinout_obj_t;
+
+#endif // MICROPY_INCLUDED_STM32F4_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
diff --git a/ports/stm32f4/common-hal/digitalio/__init__.c b/ports/stm32f4/common-hal/digitalio/__init__.c
new file mode 100644
index 000000000..20fad4595
--- /dev/null
+++ b/ports/stm32f4/common-hal/digitalio/__init__.c
@@ -0,0 +1 @@
+// No digitalio module functions.
diff --git a/ports/stm32f4/common-hal/microcontroller/Pin.c b/ports/stm32f4/common-hal/microcontroller/Pin.c
new file mode 100644
index 000000000..6bfe56515
--- /dev/null
+++ b/ports/stm32f4/common-hal/microcontroller/Pin.c
@@ -0,0 +1,81 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/microcontroller/Pin.h"
+
+#include "py/mphal.h"
+#include "stm32f4/pins.h"
+#include "stm32f4xx_hal.h"
+
+#define GPIO_PORT_COUNT 5
+
+STATIC uint16_t claimed_pins[GPIO_PORT_COUNT];
+STATIC uint16_t never_reset_pins[GPIO_PORT_COUNT];
+GPIO_TypeDef * ports[GPIO_PORT_COUNT] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE};
+
+void reset_all_pins(void) {
+ // Reset claimed pins
+ for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
+ claimed_pins[i] = never_reset_pins[i];
+ }
+ for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
+ HAL_GPIO_DeInit(ports[i], ~never_reset_pins[i]);
+ }
+}
+
+// Mark pin as free and return it to a quiescent state.
+void reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
+ if (pin_number == NO_PIN) {
+ return;
+ }
+
+ // Clear claimed bit.
+ claimed_pins[pin_port] &= ~(1 << pin_number);
+ // Reset the pin
+ HAL_GPIO_DeInit(ports[pin_port], (1 << pin_number));
+}
+
+
+void never_reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
+ never_reset_pins[pin_port] |= 1 << pin_number;
+}
+
+void claim_pin(const mcu_pin_obj_t* pin) {
+ // Set bit in claimed_pins bitmask.
+ claimed_pins[pin->port_number] |= 1 << pin->number;
+}
+
+
+bool pin_number_is_free(uint8_t pin_port, uint8_t pin_number) {
+ return !(claimed_pins[pin_port] & (1 << pin_number));
+}
+
+bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t *pin) {
+
+ return pin_number_is_free(pin->port_number, pin->number);
+
+}
diff --git a/ports/stm32f4/common-hal/microcontroller/Pin.h b/ports/stm32f4/common-hal/microcontroller/Pin.h
new file mode 100644
index 000000000..e5b1b9ceb
--- /dev/null
+++ b/ports/stm32f4/common-hal/microcontroller/Pin.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM34F4_COMMON_HAL_MICROCONTROLLER_PIN_H
+#define MICROPY_INCLUDED_STM34F4_COMMON_HAL_MICROCONTROLLER_PIN_H
+
+#include "py/mphal.h"
+
+#include "peripherals/stm32f4/pins.h"
+
+void reset_all_pins(void);
+// reset_pin_number takes the pin number instead of the pointer so that objects don't
+// need to store a full pointer.
+void reset_pin_number(uint8_t pin_port, uint8_t pin);
+void claim_pin(const mcu_pin_obj_t* pin);
+bool pin_number_is_free(uint8_t pin_port, uint8_t pin_number);
+void never_reset_pin_number(uint8_t pin_port, uint8_t pin_number);
+
+#endif // MICROPY_INCLUDED_STM34F4_COMMON_HAL_MICROCONTROLLER_PIN_H
diff --git a/ports/stm32f4/common-hal/microcontroller/Processor.c b/ports/stm32f4/common-hal/microcontroller/Processor.c
new file mode 100644
index 000000000..c59c340c0
--- /dev/null
+++ b/ports/stm32f4/common-hal/microcontroller/Processor.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "common-hal/microcontroller/Processor.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+
+
+float common_hal_mcu_processor_get_temperature(void) {
+ return 0;
+}
+
+uint32_t common_hal_mcu_processor_get_frequency(void) {
+ return 64000000ul;
+}
+
+void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {
+ for (int i=0; i<2; i++) {
+ ((uint32_t*) raw_id)[i] = 0;
+ }
+}
diff --git a/ports/stm32f4/common-hal/microcontroller/Processor.h b/ports/stm32f4/common-hal/microcontroller/Processor.h
new file mode 100644
index 000000000..c3ca4efd5
--- /dev/null
+++ b/ports/stm32f4/common-hal/microcontroller/Processor.h
@@ -0,0 +1,39 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+#define MICROPY_INCLUDED_STM32F4_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+
+#define COMMON_HAL_MCU_PROCESSOR_UID_LENGTH 8
+
+#include "py/obj.h"
+
+typedef struct {
+ mp_obj_base_t base;
+ // Stores no state currently.
+} mcu_processor_obj_t;
+
+#endif // MICROPY_INCLUDED_STM32F4_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
diff --git a/ports/stm32f4/common-hal/microcontroller/__init__.c b/ports/stm32f4/common-hal/microcontroller/__init__.c
new file mode 100644
index 000000000..871caa018
--- /dev/null
+++ b/ports/stm32f4/common-hal/microcontroller/__init__.c
@@ -0,0 +1,191 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mphal.h"
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "common-hal/microcontroller/Pin.h"
+#include "common-hal/microcontroller/Processor.h"
+
+#include "shared-bindings/nvm/ByteArray.h"
+#include "shared-bindings/microcontroller/__init__.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/microcontroller/Processor.h"
+
+#include "supervisor/filesystem.h"
+
+// This routine should work even when interrupts are disabled. Used by OneWire
+// for precise timing.
+void common_hal_mcu_delay_us(uint32_t delay) {
+ //NRFX_DELAY_US(delay);
+}
+
+void common_hal_mcu_disable_interrupts() {
+}
+
+void common_hal_mcu_enable_interrupts() {
+}
+
+void common_hal_mcu_on_next_reset(mcu_runmode_t runmode) {
+ // TODO: see atmel-samd for functionality
+}
+
+void common_hal_mcu_reset(void) {
+ // filesystem_flush();
+ // NVIC_SystemReset();
+}
+
+// The singleton microcontroller.Processor object, bound to microcontroller.cpu
+// It currently only has properties, and no state.
+const mcu_processor_obj_t common_hal_mcu_processor_obj = {
+ .base = {
+ .type = &mcu_processor_type,
+ },
+};
+
+#if CIRCUITPY_INTERNAL_NVM_SIZE > 0
+// The singleton nvm.ByteArray object.
+const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = {
+ .base = {
+ .type = &nvm_bytearray_type,
+ },
+};
+#endif
+
+STATIC const mp_rom_map_elem_t mcu_pin_globals_table[] = {
+ { MP_ROM_QSTR(MP_QSTR_PE02), MP_ROM_PTR(&pin_PE02) },
+ { MP_ROM_QSTR(MP_QSTR_PE03), MP_ROM_PTR(&pin_PE03) },
+ { MP_ROM_QSTR(MP_QSTR_PE04), MP_ROM_PTR(&pin_PE04) },
+ { MP_ROM_QSTR(MP_QSTR_PE05), MP_ROM_PTR(&pin_PE05) },
+ { MP_ROM_QSTR(MP_QSTR_PE06), MP_ROM_PTR(&pin_PE06) },
+ { MP_ROM_QSTR(MP_QSTR_PC13), MP_ROM_PTR(&pin_PC13) },
+ { MP_ROM_QSTR(MP_QSTR_PF00), MP_ROM_PTR(&pin_PF00) },
+ { MP_ROM_QSTR(MP_QSTR_PF01), MP_ROM_PTR(&pin_PF01) },
+ { MP_ROM_QSTR(MP_QSTR_PF02), MP_ROM_PTR(&pin_PF02) },
+ { MP_ROM_QSTR(MP_QSTR_PF03), MP_ROM_PTR(&pin_PF03) },
+ { MP_ROM_QSTR(MP_QSTR_PF04), MP_ROM_PTR(&pin_PF04) },
+ { MP_ROM_QSTR(MP_QSTR_PF05), MP_ROM_PTR(&pin_PF05) },
+ { MP_ROM_QSTR(MP_QSTR_PF06), MP_ROM_PTR(&pin_PF06) },
+ { MP_ROM_QSTR(MP_QSTR_PF07), MP_ROM_PTR(&pin_PF07) },
+ { MP_ROM_QSTR(MP_QSTR_PF08), MP_ROM_PTR(&pin_PF08) },
+ { MP_ROM_QSTR(MP_QSTR_PF09), MP_ROM_PTR(&pin_PF09) },
+ { MP_ROM_QSTR(MP_QSTR_PF10), MP_ROM_PTR(&pin_PF10) },
+ { MP_ROM_QSTR(MP_QSTR_PC00), MP_ROM_PTR(&pin_PC00) },
+ { MP_ROM_QSTR(MP_QSTR_PC01), MP_ROM_PTR(&pin_PC01) },
+ { MP_ROM_QSTR(MP_QSTR_PC02), MP_ROM_PTR(&pin_PC02) },
+ { MP_ROM_QSTR(MP_QSTR_PC03), MP_ROM_PTR(&pin_PC03) },
+ { MP_ROM_QSTR(MP_QSTR_PA00), MP_ROM_PTR(&pin_PA00) },
+ { MP_ROM_QSTR(MP_QSTR_PA01), MP_ROM_PTR(&pin_PA01) },
+ { MP_ROM_QSTR(MP_QSTR_PA02), MP_ROM_PTR(&pin_PA02) },
+ { MP_ROM_QSTR(MP_QSTR_PA03), MP_ROM_PTR(&pin_PA03) },
+ { MP_ROM_QSTR(MP_QSTR_PA04), MP_ROM_PTR(&pin_PA04) },
+ { MP_ROM_QSTR(MP_QSTR_PA05), MP_ROM_PTR(&pin_PA05) },
+ { MP_ROM_QSTR(MP_QSTR_PA06), MP_ROM_PTR(&pin_PA06) },
+ { MP_ROM_QSTR(MP_QSTR_PA07), MP_ROM_PTR(&pin_PA07) },
+ { MP_ROM_QSTR(MP_QSTR_PC04), MP_ROM_PTR(&pin_PC04) },
+ { MP_ROM_QSTR(MP_QSTR_PC05), MP_ROM_PTR(&pin_PC05) },
+ { MP_ROM_QSTR(MP_QSTR_PB00), MP_ROM_PTR(&pin_PB00) },
+ { MP_ROM_QSTR(MP_QSTR_PB01), MP_ROM_PTR(&pin_PB01) },
+ { MP_ROM_QSTR(MP_QSTR_PB02), MP_ROM_PTR(&pin_PB02) },
+ { MP_ROM_QSTR(MP_QSTR_PF11), MP_ROM_PTR(&pin_PF11) },
+ { MP_ROM_QSTR(MP_QSTR_PF12), MP_ROM_PTR(&pin_PF12) },
+ { MP_ROM_QSTR(MP_QSTR_PF13), MP_ROM_PTR(&pin_PF13) },
+ { MP_ROM_QSTR(MP_QSTR_PF14), MP_ROM_PTR(&pin_PF14) },
+ { MP_ROM_QSTR(MP_QSTR_PF15), MP_ROM_PTR(&pin_PF15) },
+ { MP_ROM_QSTR(MP_QSTR_PG00), MP_ROM_PTR(&pin_PG00) },
+ { MP_ROM_QSTR(MP_QSTR_PG01), MP_ROM_PTR(&pin_PG01) },
+ { MP_ROM_QSTR(MP_QSTR_PE07), MP_ROM_PTR(&pin_PE07) },
+ { MP_ROM_QSTR(MP_QSTR_PE08), MP_ROM_PTR(&pin_PE08) },
+ { MP_ROM_QSTR(MP_QSTR_PE09), MP_ROM_PTR(&pin_PE09) },
+ { MP_ROM_QSTR(MP_QSTR_PE10), MP_ROM_PTR(&pin_PE10) },
+ { MP_ROM_QSTR(MP_QSTR_PE11), MP_ROM_PTR(&pin_PE11) },
+ { MP_ROM_QSTR(MP_QSTR_PE12), MP_ROM_PTR(&pin_PE12) },
+ { MP_ROM_QSTR(MP_QSTR_PE13), MP_ROM_PTR(&pin_PE13) },
+ { MP_ROM_QSTR(MP_QSTR_PE14), MP_ROM_PTR(&pin_PE14) },
+ { MP_ROM_QSTR(MP_QSTR_PE15), MP_ROM_PTR(&pin_PE15) },
+ { MP_ROM_QSTR(MP_QSTR_PB10), MP_ROM_PTR(&pin_PB10) },
+ { MP_ROM_QSTR(MP_QSTR_PB11), MP_ROM_PTR(&pin_PB11) },
+ { MP_ROM_QSTR(MP_QSTR_PB12), MP_ROM_PTR(&pin_PB12) },
+ { MP_ROM_QSTR(MP_QSTR_PB13), MP_ROM_PTR(&pin_PB13) },
+ { MP_ROM_QSTR(MP_QSTR_PB14), MP_ROM_PTR(&pin_PB14) },
+ { MP_ROM_QSTR(MP_QSTR_PB15), MP_ROM_PTR(&pin_PB15) },
+ { MP_ROM_QSTR(MP_QSTR_PD08), MP_ROM_PTR(&pin_PD08) },
+ { MP_ROM_QSTR(MP_QSTR_PD09), MP_ROM_PTR(&pin_PD09) },
+ { MP_ROM_QSTR(MP_QSTR_PD10), MP_ROM_PTR(&pin_PD10) },
+ { MP_ROM_QSTR(MP_QSTR_PD11), MP_ROM_PTR(&pin_PD11) },
+ { MP_ROM_QSTR(MP_QSTR_PD12), MP_ROM_PTR(&pin_PD12) },
+ { MP_ROM_QSTR(MP_QSTR_PD13), MP_ROM_PTR(&pin_PD13) },
+ { MP_ROM_QSTR(MP_QSTR_PD14), MP_ROM_PTR(&pin_PD14) },
+ { MP_ROM_QSTR(MP_QSTR_PD15), MP_ROM_PTR(&pin_PD15) },
+ { MP_ROM_QSTR(MP_QSTR_PG02), MP_ROM_PTR(&pin_PG02) },
+ { MP_ROM_QSTR(MP_QSTR_PG03), MP_ROM_PTR(&pin_PG03) },
+ { MP_ROM_QSTR(MP_QSTR_PG04), MP_ROM_PTR(&pin_PG04) },
+ { MP_ROM_QSTR(MP_QSTR_PG05), MP_ROM_PTR(&pin_PG05) },
+ { MP_ROM_QSTR(MP_QSTR_PG06), MP_ROM_PTR(&pin_PG06) },
+ { MP_ROM_QSTR(MP_QSTR_PG07), MP_ROM_PTR(&pin_PG07) },
+ { MP_ROM_QSTR(MP_QSTR_PG08), MP_ROM_PTR(&pin_PG08) },
+ { MP_ROM_QSTR(MP_QSTR_PC06), MP_ROM_PTR(&pin_PC06) },
+ { MP_ROM_QSTR(MP_QSTR_PC07), MP_ROM_PTR(&pin_PC07) },
+ { MP_ROM_QSTR(MP_QSTR_PC08), MP_ROM_PTR(&pin_PC08) },
+ { MP_ROM_QSTR(MP_QSTR_PC09), MP_ROM_PTR(&pin_PC09) },
+ { MP_ROM_QSTR(MP_QSTR_PA08), MP_ROM_PTR(&pin_PA08) },
+ { MP_ROM_QSTR(MP_QSTR_PA09), MP_ROM_PTR(&pin_PA09) },
+ { MP_ROM_QSTR(MP_QSTR_PA10), MP_ROM_PTR(&pin_PA10) },
+ { MP_ROM_QSTR(MP_QSTR_PA11), MP_ROM_PTR(&pin_PA11) },
+ { MP_ROM_QSTR(MP_QSTR_PA12), MP_ROM_PTR(&pin_PA12) },
+ { MP_ROM_QSTR(MP_QSTR_PA13), MP_ROM_PTR(&pin_PA13) },
+ { MP_ROM_QSTR(MP_QSTR_PA14), MP_ROM_PTR(&pin_PA14) },
+ { MP_ROM_QSTR(MP_QSTR_PA15), MP_ROM_PTR(&pin_PA15) },
+ { MP_ROM_QSTR(MP_QSTR_PC10), MP_ROM_PTR(&pin_PC10) },
+ { MP_ROM_QSTR(MP_QSTR_PC11), MP_ROM_PTR(&pin_PC11) },
+ { MP_ROM_QSTR(MP_QSTR_PC12), MP_ROM_PTR(&pin_PC12) },
+ { MP_ROM_QSTR(MP_QSTR_PD00), MP_ROM_PTR(&pin_PD00) },
+ { MP_ROM_QSTR(MP_QSTR_PD01), MP_ROM_PTR(&pin_PD01) },
+ { MP_ROM_QSTR(MP_QSTR_PD02), MP_ROM_PTR(&pin_PD02) },
+ { MP_ROM_QSTR(MP_QSTR_PD03), MP_ROM_PTR(&pin_PD03) },
+ { MP_ROM_QSTR(MP_QSTR_PD04), MP_ROM_PTR(&pin_PD04) },
+ { MP_ROM_QSTR(MP_QSTR_PD05), MP_ROM_PTR(&pin_PD05) },
+ { MP_ROM_QSTR(MP_QSTR_PD06), MP_ROM_PTR(&pin_PD06) },
+ { MP_ROM_QSTR(MP_QSTR_PD07), MP_ROM_PTR(&pin_PD07) },
+ { MP_ROM_QSTR(MP_QSTR_PG09), MP_ROM_PTR(&pin_PG09) },
+ { MP_ROM_QSTR(MP_QSTR_PG10), MP_ROM_PTR(&pin_PG10) },
+ { MP_ROM_QSTR(MP_QSTR_PG11), MP_ROM_PTR(&pin_PG11) },
+ { MP_ROM_QSTR(MP_QSTR_PG12), MP_ROM_PTR(&pin_PG12) },
+ { MP_ROM_QSTR(MP_QSTR_PG13), MP_ROM_PTR(&pin_PG13) },
+ { MP_ROM_QSTR(MP_QSTR_PG14), MP_ROM_PTR(&pin_PG14) },
+ { MP_ROM_QSTR(MP_QSTR_PG15), MP_ROM_PTR(&pin_PG15) },
+ { MP_ROM_QSTR(MP_QSTR_PB03), MP_ROM_PTR(&pin_PB03) },
+ { MP_ROM_QSTR(MP_QSTR_PB04), MP_ROM_PTR(&pin_PB04) },
+ { MP_ROM_QSTR(MP_QSTR_PB05), MP_ROM_PTR(&pin_PB05) },
+ { MP_ROM_QSTR(MP_QSTR_PB06), MP_ROM_PTR(&pin_PB06) },
+ { MP_ROM_QSTR(MP_QSTR_PB07), MP_ROM_PTR(&pin_PB07) },
+ { MP_ROM_QSTR(MP_QSTR_PB08), MP_ROM_PTR(&pin_PB08) },
+ { MP_ROM_QSTR(MP_QSTR_PB09), MP_ROM_PTR(&pin_PB09) },
+ { MP_ROM_QSTR(MP_QSTR_PE00), MP_ROM_PTR(&pin_PE00) },
+ { MP_ROM_QSTR(MP_QSTR_PE01), MP_ROM_PTR(&pin_PE01) },
+};
+MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_globals_table);
diff --git a/ports/stm32f4/common-hal/nvm/ByteArray.c b/ports/stm32f4/common-hal/nvm/ByteArray.c
new file mode 100644
index 000000000..ef70744ad
--- /dev/null
+++ b/ports/stm32f4/common-hal/nvm/ByteArray.c
@@ -0,0 +1,81 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Nick Moore for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+//TODO: Implement for STM32. File required by Microcontroller Init
+
+#include "common-hal/nvm/ByteArray.h"
+
+#include <stdio.h>
+#include <string.h>
+
+// defined in linker
+extern uint32_t __fatfs_flash_start_addr[];
+extern uint32_t __fatfs_flash_length[];
+
+#define NVM_START_ADDR ((uint32_t)__fatfs_flash_start_addr + \
+ (uint32_t)__fatfs_flash_length - CIRCUITPY_INTERNAL_NVM_SIZE)
+
+uint32_t common_hal_nvm_bytearray_get_length(nvm_bytearray_obj_t *self) {
+ return CIRCUITPY_INTERNAL_NVM_SIZE;
+}
+
+static void write_page(uint32_t page_addr, uint32_t offset, uint32_t len, uint8_t *bytes) {
+ //
+ // Write a whole page to flash, buffering it first and then erasing and rewriting
+ // it since we can only clear a whole page at a time.
+
+ // if (offset == 0 && len == FLASH_PAGE_SIZE) {
+ // nrf_nvm_safe_flash_page_write(page_addr, bytes);
+ // } else {
+ // uint8_t buffer[FLASH_PAGE_SIZE];
+ // memcpy(buffer, (uint8_t *)page_addr, FLASH_PAGE_SIZE);
+ // memcpy(buffer + offset, bytes, len);
+ // nrf_nvm_safe_flash_page_write(page_addr, buffer);
+ // }
+}
+
+bool common_hal_nvm_bytearray_set_bytes(nvm_bytearray_obj_t *self,
+ // uint32_t start_index, uint8_t* values, uint32_t len) {
+
+ // uint32_t address = NVM_START_ADDR + start_index;
+ // uint32_t offset = address % FLASH_PAGE_SIZE;
+ // uint32_t page_addr = address - offset;
+
+ // while (len) {
+ // uint32_t write_len = MIN(len, FLASH_PAGE_SIZE - offset);
+ // write_page(page_addr, offset, write_len, values);
+ // len -= write_len;
+ // values += write_len;
+ // page_addr += FLASH_PAGE_SIZE;
+ // offset = 0;
+ // }
+ return true;
+}
+
+void common_hal_nvm_bytearray_get_bytes(nvm_bytearray_obj_t *self,
+ uint32_t start_index, uint32_t len, uint8_t* values) {
+ memcpy(values, (uint8_t *)(NVM_START_ADDR + start_index), len);
+}
diff --git a/ports/stm32f4/common-hal/nvm/ByteArray.h b/ports/stm32f4/common-hal/nvm/ByteArray.h
new file mode 100644
index 000000000..ed00df9ff
--- /dev/null
+++ b/ports/stm32f4/common-hal/nvm/ByteArray.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Nick Moore for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_COMMON_HAL_NVM_BYTEARRAY_H
+#define MICROPY_INCLUDED_STM32F4_COMMON_HAL_NVM_BYTEARRAY_H
+
+#include "py/obj.h"
+
+typedef struct {
+ mp_obj_base_t base;
+} nvm_bytearray_obj_t;
+
+#endif // MICROPY_INCLUDED_STM32F4_COMMON_HAL_NVM_BYTEARRAY_H
diff --git a/ports/stm32f4/common-hal/nvm/__init__.c b/ports/stm32f4/common-hal/nvm/__init__.c
new file mode 100644
index 000000000..3cdc9d3a4
--- /dev/null
+++ b/ports/stm32f4/common-hal/nvm/__init__.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Nick Moore for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// No nvm module functions.
diff --git a/ports/stm32f4/common-hal/supervisor/Runtime.c b/ports/stm32f4/common-hal/supervisor/Runtime.c
new file mode 100755
index 000000000..feab6987d
--- /dev/null
+++ b/ports/stm32f4/common-hal/supervisor/Runtime.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Michael Schroeder
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdbool.h>
+#include "shared-bindings/supervisor/Runtime.h"
+#include "supervisor/serial.h"
+
+bool common_hal_get_serial_connected(void) {
+ return (bool) serial_connected();
+}
+
+bool common_hal_get_serial_bytes_available(void) {
+ return (bool) serial_bytes_available();
+}
+
diff --git a/ports/stm32f4/common-hal/supervisor/Runtime.h b/ports/stm32f4/common-hal/supervisor/Runtime.h
new file mode 100755
index 000000000..9a798e056
--- /dev/null
+++ b/ports/stm32f4/common-hal/supervisor/Runtime.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Michael Schroeder
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_COMMON_HAL_SUPERVISOR_RUNTIME_H
+#define MICROPY_INCLUDED_STM32F4_COMMON_HAL_SUPERVISOR_RUNTIME_H
+
+#include "py/obj.h"
+
+typedef struct {
+ mp_obj_base_t base;
+ // Stores no state currently.
+} super_runtime_obj_t;
+
+#endif // MICROPY_INCLUDED_STM32F4_COMMON_HAL_SUPERVISOR_RUNTIME_H
diff --git a/ports/stm32f4/common-hal/supervisor/__init__.c b/ports/stm32f4/common-hal/supervisor/__init__.c
new file mode 100755
index 000000000..ac88556b4
--- /dev/null
+++ b/ports/stm32f4/common-hal/supervisor/__init__.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Michael Schroeder
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "py/obj.h"
+
+#include "shared-bindings/supervisor/__init__.h"
+#include "shared-bindings/supervisor/Runtime.h"
+
+
+// The singleton supervisor.Runtime object, bound to supervisor.runtime
+// It currently only has properties, and no state.
+const super_runtime_obj_t common_hal_supervisor_runtime_obj = {
+ .base = {
+ .type = &supervisor_runtime_type,
+ },
+}; \ No newline at end of file
diff --git a/ports/stm32f4/common-hal/time/__init__.c b/ports/stm32f4/common-hal/time/__init__.c
new file mode 100644
index 000000000..e3cb481ef
--- /dev/null
+++ b/ports/stm32f4/common-hal/time/__init__.c
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mphal.h"
+
+#include "tick.h"
+
+uint64_t common_hal_time_monotonic(void) {
+ return ticks_ms;
+}
+
+void common_hal_time_delay_ms(uint32_t delay) {
+ mp_hal_delay_ms(delay);
+}
diff --git a/ports/stm32f4/fatfs_port.c b/ports/stm32f4/fatfs_port.c
new file mode 100644
index 000000000..13ac21fb1
--- /dev/null
+++ b/ports/stm32f4/fatfs_port.c
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/runtime.h"
+#include "lib/oofatfs/ff.h"
+
+DWORD get_fattime(void) {
+ // TODO: Implement this function. For now, fake it.
+ return ((2016 - 1980) << 25) | ((12) << 21) | ((4) << 16) | ((00) << 11) | ((18) << 5) | (23 / 2);
+}
diff --git a/ports/stm32f4/mpconfigport.h b/ports/stm32f4/mpconfigport.h
new file mode 100644
index 000000000..543a55942
--- /dev/null
+++ b/ports/stm32f4/mpconfigport.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Glenn Ruben Bakke
+ * Copyright (c) 2019 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef STM32F4_MPCONFIGPORT_H__
+#define STM32F4_MPCONFIGPORT_H__
+
+#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (1)
+#define MICROPY_PY_FUNCTION_ATTRS (1)
+#define MICROPY_PY_IO (1)
+#define MICROPY_PY_REVERSE_SPECIAL_METHODS (1)
+#define MICROPY_PY_UJSON (1)
+
+// 24kiB stack
+#define CIRCUITPY_DEFAULT_STACK_SIZE 0x6000
+
+#include "py/circuitpy_mpconfig.h"
+
+#define MICROPY_PORT_ROOT_POINTERS \
+ CIRCUITPY_COMMON_ROOT_POINTERS
+
+#endif // __INCLUDED_MPCONFIGPORT_H
diff --git a/ports/stm32f4/mpconfigport.mk b/ports/stm32f4/mpconfigport.mk
new file mode 100644
index 000000000..814bb2b20
--- /dev/null
+++ b/ports/stm32f4/mpconfigport.mk
@@ -0,0 +1,22 @@
+# Define an equivalent for MICROPY_LONGINT_IMPL, to pass to $(MPY-TOOL) in py/mkrules.mk
+# $(MPY-TOOL) needs to know what kind of longint to use (if any) to freeze long integers.
+# This should correspond to the MICROPY_LONGINT_IMPL definition in mpconfigport.h.
+MPY_TOOL_LONGINT_IMPL = -mlongint-impl=mpz
+
+# Internal math library is substantially smaller than toolchain one
+INTERNAL_LIBM = 1
+
+# Chip supplied serial number, in bytes
+USB_SERIAL_NUMBER_LENGTH = 16
+
+# Longints can be implemented as mpz, as longlong, or not
+LONGINT_IMPL = MPZ
+
+#Reduced feature set for early port
+CIRCUITPY_MINIMAL_BUILD = 1
+
+ifeq ($(MCU_SUB_VARIANT), stm32f412zx)
+ CIRCUITPY_BOARD = 1
+ CIRCUITPY_DIGITALIO = 1
+ CIRCUITPY_MICROCONTROLLER = 1
+endif
diff --git a/ports/stm32f4/mphalport.c b/ports/stm32f4/mphalport.c
new file mode 100644
index 000000000..ea864e7ce
--- /dev/null
+++ b/ports/stm32f4/mphalport.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Glenn Ruben Bakke
+ * Copyright (c) 2018 Artur Pacholec
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+
+#include "py/mphal.h"
+#include "py/mpstate.h"
+#include "py/gc.h"
+
+/*------------------------------------------------------------------*/
+/* delay
+ *------------------------------------------------------------------*/
+void mp_hal_delay_ms(mp_uint_t delay) {
+ uint64_t start_tick = ticks_ms;
+ uint64_t duration = 0;
+ while (duration < delay) {
+ #ifdef MICROPY_VM_HOOK_LOOP
+ MICROPY_VM_HOOK_LOOP
+ #endif
+ // Check to see if we've been CTRL-Ced by autoreload or the user.
+ if(MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) ||
+ MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
+ break;
+ }
+ duration = (ticks_ms - start_tick);
+ // TODO(tannewt): Go to sleep for a little while while we wait.
+ }
+}
diff --git a/ports/stm32f4/mphalport.h b/ports/stm32f4/mphalport.h
new file mode 100644
index 000000000..131f2751d
--- /dev/null
+++ b/ports/stm32f4/mphalport.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Glenn Ruben Bakke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef __STM32F4_HAL
+#define __STM32F4_HAL
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "lib/utils/interrupt_char.h"
+#include "py/mpconfig.h"
+
+//extern nrfx_uarte_t serial_instance;
+
+extern volatile uint64_t ticks_ms;
+
+#define mp_hal_ticks_ms() ((mp_uint_t) ticks_ms)
+//#define mp_hal_delay_us(us) NRFX_DELAY_US((uint32_t) (us))
+
+bool mp_hal_stdin_any(void);
+
+#endif
diff --git a/ports/stm32f4/peripherals/stm32f4/clocks.h b/ports/stm32f4/peripherals/stm32f4/clocks.h
new file mode 100644
index 000000000..c7ba84662
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/clocks.h
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+void stm32f4_peripherals_clocks_init(void);
diff --git a/ports/stm32f4/peripherals/stm32f4/gpio.h b/ports/stm32f4/peripherals/stm32f4/gpio.h
new file mode 100644
index 000000000..251cdb814
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/gpio.h
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+void stm32f4_peripherals_gpio_init(void);
diff --git a/ports/stm32f4/peripherals/stm32f4/pins.h b/ports/stm32f4/peripherals/stm32f4/pins.h
new file mode 100644
index 000000000..1b48cc192
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/pins.h
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// DO NOT include this file directly. Use shared-bindings/microcontroller/Pin.h instead to ensure
+// that all necessary includes are already included.
+
+#ifndef __MICROPY_INCLUDED_STM32F4_PERIPHERALS_PINS_H__
+#define __MICROPY_INCLUDED_STM32F4_PERIPHERALS_PINS_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "stm32f4xx_hal.h"
+
+typedef struct {
+ mp_obj_base_t base;
+ //uint8_t number; //(3)port,(5)pin
+ uint8_t port_number;
+ GPIO_TypeDef * port;
+ uint8_t number;
+} mcu_pin_obj_t;
+
+// extern GPIO_TypeDef *port_lookup_table[];
+
+// static inline GPIO_TypeDef * get_GPIO_ptr(const mcu_pin_obj_t *p)
+// {
+// return port_lookup_table[0x7&( (p->number) >> 5)];
+// }
+
+extern const mp_obj_type_t mcu_pin_type;
+
+// Used in device-specific pins.c
+#define PIN(p_port_num, p_port, p_number) \
+{ \
+ { &mcu_pin_type }, \
+ .port_number = (p_port_num), \
+ .port = (p_port), \
+ .number = (p_number), \
+}
+
+// Use illegal pin value to mark unassigned pins.
+#define NO_PIN 0xff
+
+// Choose based on chip
+#ifdef STM32F412Zx
+#include "stm32f412zx/pins.h"
+#endif
+
+#endif // __MICROPY_INCLUDED_STM32F4_PERIPHERALS_PINS_H__
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/clocks.c b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/clocks.c
new file mode 100644
index 000000000..5b7a1e298
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/clocks.c
@@ -0,0 +1,63 @@
+
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "stm32f4xx_hal.h"
+
+void stm32f4_peripherals_clocks_init(void) {
+ //System clock init
+ RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+ RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+ RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
+ /** Configure the main internal regulator output voltage
+ */
+ __HAL_RCC_PWR_CLK_ENABLE();
+ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+ /** Initializes the CPU, AHB and APB busses clocks
+ */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ RCC_OscInitStruct.PLL.PLLM = 4;
+ RCC_OscInitStruct.PLL.PLLN = 192;
+ RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
+ RCC_OscInitStruct.PLL.PLLQ = 8;
+ HAL_RCC_OscConfig(&RCC_OscInitStruct);
+ /** Initializes the CPU, AHB and APB busses clocks
+ */
+ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+ |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+ HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
+ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2S;
+ PeriphClkInitStruct.PLLI2S.PLLI2SN = 200;
+ PeriphClkInitStruct.PLLI2S.PLLI2SM = 5;
+ PeriphClkInitStruct.PLLI2S.PLLI2SR = 2;
+ HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
+}
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c
new file mode 100644
index 000000000..a9ac97bae
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c
@@ -0,0 +1,137 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* GPIO PIN REFERENCE
+#define DATA_Ready_Pin GPIO_PIN_2
+#define DATA_Ready_GPIO_Port GPIOE
+#define CS_I2C_SPI_Pin GPIO_PIN_3
+#define CS_I2C_SPI_GPIO_Port GPIOE
+#define INT1_Pin GPIO_PIN_4
+#define INT1_GPIO_Port GPIOE
+#define INT2_Pin GPIO_PIN_5
+#define INT2_GPIO_Port GPIOE
+#define PC14_OSC32_IN_Pin GPIO_PIN_14
+#define PC14_OSC32_IN_GPIO_Port GPIOC
+#define PC15_OSC32_OUT_Pin GPIO_PIN_15
+#define PC15_OSC32_OUT_GPIO_Port GPIOC
+#define PH0_OSC_IN_Pin GPIO_PIN_0
+#define PH0_OSC_IN_GPIO_Port GPIOH
+#define PH1_OSC_OUT_Pin GPIO_PIN_1
+#define PH1_OSC_OUT_GPIO_Port GPIOH
+#define OTG_FS_PowerSwitchOn_Pin GPIO_PIN_0
+#define OTG_FS_PowerSwitchOn_GPIO_Port GPIOC
+#define PDM_OUT_Pin GPIO_PIN_3
+#define PDM_OUT_GPIO_Port GPIOC
+#define I2S3_WS_Pin GPIO_PIN_4
+#define I2S3_WS_GPIO_Port GPIOA
+#define SPI1_SCK_Pin GPIO_PIN_5
+#define SPI1_SCK_GPIO_Port GPIOA
+#define SPI1_MISO_Pin GPIO_PIN_6
+#define SPI1_MISO_GPIO_Port GPIOA
+#define SPI1_MOSI_Pin GPIO_PIN_7
+#define SPI1_MOSI_GPIO_Port GPIOA
+#define CLK_IN_Pin GPIO_PIN_10
+#define CLK_IN_GPIO_Port GPIOB
+#define LD4_Pin GPIO_PIN_12
+#define LD4_GPIO_Port GPIOD
+#define LD3_Pin GPIO_PIN_13
+#define LD3_GPIO_Port GPIOD
+#define LD5_Pin GPIO_PIN_14
+#define LD5_GPIO_Port GPIOD
+#define LD6_Pin GPIO_PIN_15
+#define LD6_GPIO_Port GPIOD
+#define I2S3_MCK_Pin GPIO_PIN_7
+#define I2S3_MCK_GPIO_Port GPIOC
+#define VBUS_FS_Pin GPIO_PIN_9
+#define VBUS_FS_GPIO_Port GPIOA
+#define OTG_FS_ID_Pin GPIO_PIN_10
+#define OTG_FS_ID_GPIO_Port GPIOA
+#define OTG_FS_DM_Pin GPIO_PIN_11
+#define OTG_FS_DM_GPIO_Port GPIOA
+#define OTG_FS_DP_Pin GPIO_PIN_12
+#define OTG_FS_DP_GPIO_Port GPIOA
+#define SWDIO_Pin GPIO_PIN_13
+#define SWDIO_GPIO_Port GPIOA
+#define SWCLK_Pin GPIO_PIN_14
+#define SWCLK_GPIO_Port GPIOA
+#define I2S3_SCK_Pin GPIO_PIN_10
+#define I2S3_SCK_GPIO_Port GPIOC
+#define I2S3_SD_Pin GPIO_PIN_12
+#define I2S3_SD_GPIO_Port GPIOC
+#define Audio_RST_Pin GPIO_PIN_4
+#define Audio_RST_GPIO_Port GPIOD
+#define OTG_FS_OverCurrent_Pin GPIO_PIN_5
+#define OTG_FS_OverCurrent_GPIO_Port GPIOD
+#define SWO_Pin GPIO_PIN_3
+#define SWO_GPIO_Port GPIOB
+#define Audio_SCL_Pin GPIO_PIN_6
+#define Audio_SCL_GPIO_Port GPIOB
+#define Audio_SDA_Pin GPIO_PIN_9
+#define Audio_SDA_GPIO_Port GPIOB
+#define MEMS_INT2_Pin GPIO_PIN_1
+#define MEMS_INT2_GPIO_Port GPIOE
+*/
+
+#define LD4_Pin GPIO_PIN_12
+#define LD4_GPIO_Port GPIOD
+#define LD3_Pin GPIO_PIN_13
+#define LD3_GPIO_Port GPIOD
+#define LD5_Pin GPIO_PIN_14
+#define LD5_GPIO_Port GPIOD
+#define LD6_Pin GPIO_PIN_15
+#define LD6_GPIO_Port GPIOD
+
+#include "stm32f4xx_hal.h"
+
+void stm32f4_peripherals_gpio_init(void) {
+ //Enable all GPIO for now
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ /* GPIO Ports Clock Enable */
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ __HAL_RCC_GPIOH_CLK_ENABLE();
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ __HAL_RCC_GPIOD_CLK_ENABLE();
+
+ /*Configure GPIO pin Output Level */
+ HAL_GPIO_WritePin(GPIOD, LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin, GPIO_PIN_RESET);
+
+ /*Configure GPIO pins : LD4_Pin LD3_Pin LD5_Pin LD6_Pin */
+ GPIO_InitStruct.Pin = LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
+
+ //Status LED chain
+ HAL_GPIO_WritePin(GPIOD, LD4_Pin, GPIO_PIN_RESET); //LED 1
+ HAL_GPIO_WritePin(GPIOD, LD3_Pin, GPIO_PIN_SET); //LED 2
+ HAL_GPIO_WritePin(GPIOD, LD5_Pin, GPIO_PIN_SET); //LED 3
+ HAL_GPIO_WritePin(GPIOD, LD6_Pin, GPIO_PIN_SET); //LED 4
+}
+
+
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.c b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.c
new file mode 100644
index 000000000..04502d714
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.c
@@ -0,0 +1,33 @@
+ /*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/obj.h"
+#include "py/mphal.h"
+#include "stm32f4/pins.h"
+
+
+//TODO
+//const mcu_pin_obj_t pin_PE02 = PIN(4, GPIOE, 2); \ No newline at end of file
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.h b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.h
new file mode 100644
index 000000000..b060d9ed0
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/pins.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F411RE_PINS_H
+#define MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F411RE_PINS_H
+
+//TODO
+//Pins in datasheet order: DocID028087 Rev 7 page 50. LQFP100 only
+//pg 50
+//extern const mcu_pin_obj_t pin_PE02;
+
+
+#endif // MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F411RE_PINS_H
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f412zx/clocks.c b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/clocks.c
new file mode 100644
index 000000000..0ccd9cb48
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/clocks.c
@@ -0,0 +1,75 @@
+
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "stm32f4xx_hal.h"
+
+void stm32f4_peripherals_clocks_init(void) {
+ //System clock init
+ RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+ RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+ RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
+ /** Configure the main internal regulator output voltage
+ */
+ __HAL_RCC_PWR_CLK_ENABLE();
+ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+ /** Initializes the CPU, AHB and APB busses clocks
+ */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+ RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ RCC_OscInitStruct.PLL.PLLM = 4;
+ RCC_OscInitStruct.PLL.PLLN = 72;
+ RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+ RCC_OscInitStruct.PLL.PLLQ = 3;
+ RCC_OscInitStruct.PLL.PLLR = 2;
+ HAL_RCC_OscConfig(&RCC_OscInitStruct);
+ /** Initializes the CPU, AHB and APB busses clocks
+ */
+ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+ |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+ HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+
+ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2S_APB1|RCC_PERIPHCLK_SDIO
+ |RCC_PERIPHCLK_CLK48;
+ PeriphClkInitStruct.PLLI2S.PLLI2SN = 50;
+ PeriphClkInitStruct.PLLI2S.PLLI2SM = 4;
+ PeriphClkInitStruct.PLLI2S.PLLI2SR = 2;
+ PeriphClkInitStruct.PLLI2S.PLLI2SQ = 2;
+ PeriphClkInitStruct.Clk48ClockSelection = RCC_CLK48CLKSOURCE_PLLQ;
+ PeriphClkInitStruct.SdioClockSelection = RCC_SDIOCLKSOURCE_CLK48;
+ PeriphClkInitStruct.PLLI2SSelection = RCC_PLLI2SCLKSOURCE_PLLSRC;
+ PeriphClkInitStruct.I2sApb1ClockSelection = RCC_I2SAPB1CLKSOURCE_PLLI2S;
+ HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
+
+ HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+}
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f412zx/gpio.c b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/gpio.c
new file mode 100644
index 000000000..de783bafe
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/gpio.c
@@ -0,0 +1,218 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* GPIO PIN REFERENCE
+#define LED3_Pin GPIO_PIN_2
+#define LED3_GPIO_Port GPIOE
+#define LED4_Pin GPIO_PIN_3
+#define LED4_GPIO_Port GPIOE
+#define DFSDM_DATIN3_Pin GPIO_PIN_4
+#define DFSDM_DATIN3_GPIO_Port GPIOE
+#define A0_Pin GPIO_PIN_0
+#define A0_GPIO_Port GPIOF
+#define LCD_BLCTRL_Pin GPIO_PIN_5
+#define LCD_BLCTRL_GPIO_Port GPIOF
+#define QSPI_BK1_IO3_Pin GPIO_PIN_6
+#define QSPI_BK1_IO3_GPIO_Port GPIOF
+#define QSPI_BK1_IO2_Pin GPIO_PIN_7
+#define QSPI_BK1_IO2_GPIO_Port GPIOF
+#define QSPI_BK1_IO0_Pin GPIO_PIN_8
+#define QSPI_BK1_IO0_GPIO_Port GPIOF
+#define QSPI_BK1_IO1_Pin GPIO_PIN_9
+#define QSPI_BK1_IO1_GPIO_Port GPIOF
+#define STLK_MCO_Pin GPIO_PIN_0
+#define STLK_MCO_GPIO_Port GPIOH
+#define DFSDM_CKOUT_Pin GPIO_PIN_2
+#define DFSDM_CKOUT_GPIO_Port GPIOC
+#define JOY_SEL_Pin GPIO_PIN_0
+#define JOY_SEL_GPIO_Port GPIOA
+#define STLINK_RX_Pin GPIO_PIN_2
+#define STLINK_RX_GPIO_Port GPIOA
+#define STLINK_TX_Pin GPIO_PIN_3
+#define STLINK_TX_GPIO_Port GPIOA
+#define CODEC_I2S3_WS_Pin GPIO_PIN_4
+#define CODEC_I2S3_WS_GPIO_Port GPIOA
+#define DFSDM_DATIN0_Pin GPIO_PIN_1
+#define DFSDM_DATIN0_GPIO_Port GPIOB
+#define QSPI_CLK_Pin GPIO_PIN_2
+#define QSPI_CLK_GPIO_Port GPIOB
+#define EXT_RESET_Pin GPIO_PIN_11
+#define EXT_RESET_GPIO_Port GPIOF
+#define CTP_RST_Pin GPIO_PIN_12
+#define CTP_RST_GPIO_Port GPIOF
+#define JOY_RIGHT_Pin GPIO_PIN_14
+#define JOY_RIGHT_GPIO_Port GPIOF
+#define JOY_LEFT_Pin GPIO_PIN_15
+#define JOY_LEFT_GPIO_Port GPIOF
+#define JOY_UP_Pin GPIO_PIN_0
+#define JOY_UP_GPIO_Port GPIOG
+#define JOY_DOWN_Pin GPIO_PIN_1
+#define JOY_DOWN_GPIO_Port GPIOG
+#define D4_Pin GPIO_PIN_7
+#define D4_GPIO_Port GPIOE
+#define D5_Pin GPIO_PIN_8
+#define D5_GPIO_Port GPIOE
+#define D6_Pin GPIO_PIN_9
+#define D6_GPIO_Port GPIOE
+#define D7_Pin GPIO_PIN_10
+#define D7_GPIO_Port GPIOE
+#define D8_Pin GPIO_PIN_11
+#define D8_GPIO_Port GPIOE
+#define D9_Pin GPIO_PIN_12
+#define D9_GPIO_Port GPIOE
+#define D10_Pin GPIO_PIN_13
+#define D10_GPIO_Port GPIOE
+#define D11_Pin GPIO_PIN_14
+#define D11_GPIO_Port GPIOE
+#define D12_Pin GPIO_PIN_15
+#define D12_GPIO_Port GPIOE
+#define I2C2_SCL_Pin GPIO_PIN_10
+#define I2C2_SCL_GPIO_Port GPIOB
+#define M2_CKIN_Pin GPIO_PIN_11
+#define M2_CKIN_GPIO_Port GPIOB
+#define CODEC_I2S3_SCK_Pin GPIO_PIN_12
+#define CODEC_I2S3_SCK_GPIO_Port GPIOB
+#define D13_Pin GPIO_PIN_8
+#define D13_GPIO_Port GPIOD
+#define D14_Pin GPIO_PIN_9
+#define D14_GPIO_Port GPIOD
+#define D15_Pin GPIO_PIN_10
+#define D15_GPIO_Port GPIOD
+#define LCD_RESET_Pin GPIO_PIN_11
+#define LCD_RESET_GPIO_Port GPIOD
+#define D0_Pin GPIO_PIN_14
+#define D0_GPIO_Port GPIOD
+#define D1_Pin GPIO_PIN_15
+#define D1_GPIO_Port GPIOD
+#define CODEC_INT_Pin GPIO_PIN_2
+#define CODEC_INT_GPIO_Port GPIOG
+#define LCD_TE_Pin GPIO_PIN_4
+#define LCD_TE_GPIO_Port GPIOG
+#define CTP_INT_Pin GPIO_PIN_5
+#define CTP_INT_GPIO_Port GPIOG
+#define QSPI_BK1_NCS_Pin GPIO_PIN_6
+#define QSPI_BK1_NCS_GPIO_Port GPIOG
+#define USB_OTGFS_OVRCR_Pin GPIO_PIN_7
+#define USB_OTGFS_OVRCR_GPIO_Port GPIOG
+#define USB_OTGFS_PPWR_EN_Pin GPIO_PIN_8
+#define USB_OTGFS_PPWR_EN_GPIO_Port GPIOG
+#define CODEC_I2S3_MCK_Pin GPIO_PIN_7
+#define CODEC_I2S3_MCK_GPIO_Port GPIOC
+#define uSD_D0_Pin GPIO_PIN_8
+#define uSD_D0_GPIO_Port GPIOC
+#define uSD_D1_Pin GPIO_PIN_9
+#define uSD_D1_GPIO_Port GPIOC
+#define M2_CKINA8_Pin GPIO_PIN_8
+#define M2_CKINA8_GPIO_Port GPIOA
+#define USB_OTGFS_VBUS_Pin GPIO_PIN_9
+#define USB_OTGFS_VBUS_GPIO_Port GPIOA
+#define USB_OTGFS_ID_Pin GPIO_PIN_10
+#define USB_OTGFS_ID_GPIO_Port GPIOA
+#define USB_OTGFS_DM_Pin GPIO_PIN_11
+#define USB_OTGFS_DM_GPIO_Port GPIOA
+#define USB_OTGFS_DP_Pin GPIO_PIN_12
+#define USB_OTGFS_DP_GPIO_Port GPIOA
+#define SWDIO_Pin GPIO_PIN_13
+#define SWDIO_GPIO_Port GPIOA
+#define SWCLK_Pin GPIO_PIN_14
+#define SWCLK_GPIO_Port GPIOA
+#define uSD_D2_Pin GPIO_PIN_10
+#define uSD_D2_GPIO_Port GPIOC
+#define uSD_D3_Pin GPIO_PIN_11
+#define uSD_D3_GPIO_Port GPIOC
+#define uSD_CLK_Pin GPIO_PIN_12
+#define uSD_CLK_GPIO_Port GPIOC
+#define D2_Pin GPIO_PIN_0
+#define D2_GPIO_Port GPIOD
+#define D3_Pin GPIO_PIN_1
+#define D3_GPIO_Port GPIOD
+#define uSD_CMD_Pin GPIO_PIN_2
+#define uSD_CMD_GPIO_Port GPIOD
+#define uSD_DETECT_Pin GPIO_PIN_3
+#define uSD_DETECT_GPIO_Port GPIOD
+#define FMC_NOE_Pin GPIO_PIN_4
+#define FMC_NOE_GPIO_Port GPIOD
+#define FMC_NWE_Pin GPIO_PIN_5
+#define FMC_NWE_GPIO_Port GPIOD
+#define FMC_NE1_Pin GPIO_PIN_7
+#define FMC_NE1_GPIO_Port GPIOD
+#define SWO_Pin GPIO_PIN_3
+#define SWO_GPIO_Port GPIOB
+#define CODEC_I2S3ext_SD_Pin GPIO_PIN_4
+#define CODEC_I2S3ext_SD_GPIO_Port GPIOB
+#define CODEC_I2S3_SD_Pin GPIO_PIN_5
+#define CODEC_I2S3_SD_GPIO_Port GPIOB
+#define I2C1_SCL_Pin GPIO_PIN_6
+#define I2C1_SCL_GPIO_Port GPIOB
+#define I2C1_SDA_Pin GPIO_PIN_7
+#define I2C1_SDA_GPIO_Port GPIOB
+#define I2C2_SDA_Pin GPIO_PIN_9
+#define I2C2_SDA_GPIO_Port GPIOB
+#define LED1_Pin GPIO_PIN_0
+#define LED1_GPIO_Port GPIOE
+#define LED2_Pin GPIO_PIN_1
+#define LED2_GPIO_Port GPIOE
+*/
+
+#include "stm32f4xx_hal.h"
+
+void stm32f4_peripherals_gpio_init(void) {
+ //Enable all GPIO for now
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ __HAL_RCC_GPIOF_CLK_ENABLE();
+ __HAL_RCC_GPIOH_CLK_ENABLE();
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ __HAL_RCC_GPIOG_CLK_ENABLE();
+ __HAL_RCC_GPIOD_CLK_ENABLE();
+
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, GPIO_PIN_RESET);
+ //HAL_GPIO_WritePin(USB_OTGFS_PPWR_EN_GPIO_Port, USB_OTGFS_PPWR_EN_Pin, GPIO_PIN_SET);
+
+ //Configure LED pins
+ GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3;
+ GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
+
+ //Status LED chain
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_0, GPIO_PIN_RESET); //LED 1
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_1, GPIO_PIN_SET); //LED 2
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_2, GPIO_PIN_SET); //LED 3
+ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_3, GPIO_PIN_SET); //LED 4
+
+ //TBD, USB power
+ // GPIO_InitStruct.Pin = USB_OTGFS_PPWR_EN_Pin;
+ // GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
+ // GPIO_InitStruct.Pull = GPIO_NOPULL;
+ // GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+ // HAL_GPIO_Init(USB_OTGFS_PPWR_EN_GPIO_Port, &GPIO_InitStruct);
+}
+
+
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.c b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.c
new file mode 100644
index 000000000..5a4703bea
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.c
@@ -0,0 +1,159 @@
+ /*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/obj.h"
+#include "py/mphal.h"
+#include "stm32f4/pins.h"
+
+const mcu_pin_obj_t pin_PE02 = PIN(4, GPIOE, 2);
+const mcu_pin_obj_t pin_PE03 = PIN(4, GPIOE, 3);
+const mcu_pin_obj_t pin_PE04 = PIN(4, GPIOE, 4);
+const mcu_pin_obj_t pin_PE05 = PIN(4, GPIOE, 5);
+const mcu_pin_obj_t pin_PE06 = PIN(4, GPIOE, 6);
+
+const mcu_pin_obj_t pin_PC13 = PIN(2, GPIOC, 13);
+
+const mcu_pin_obj_t pin_PF00 = PIN(5, GPIOF, 0); // 144 only
+const mcu_pin_obj_t pin_PF01 = PIN(5, GPIOF, 1); // 144 only
+const mcu_pin_obj_t pin_PF02 = PIN(5, GPIOF, 2); // 144 only
+const mcu_pin_obj_t pin_PF03 = PIN(5, GPIOF, 3); // 144 only
+const mcu_pin_obj_t pin_PF04 = PIN(5, GPIOF, 4); // 144 only
+const mcu_pin_obj_t pin_PF05 = PIN(5, GPIOF, 5); // 144 only
+const mcu_pin_obj_t pin_PF06 = PIN(5, GPIOF, 6); // 144 only
+const mcu_pin_obj_t pin_PF07 = PIN(5, GPIOF, 7); // 144 only
+const mcu_pin_obj_t pin_PF08 = PIN(5, GPIOF, 8); // 144 only
+const mcu_pin_obj_t pin_PF09 = PIN(5, GPIOF, 9); // 144 only
+const mcu_pin_obj_t pin_PF10 = PIN(5, GPIOF, 10); // 144 only
+
+const mcu_pin_obj_t pin_PC00 = PIN(2, GPIOC, 0);
+const mcu_pin_obj_t pin_PC01 = PIN(2, GPIOC, 1);
+const mcu_pin_obj_t pin_PC02 = PIN(2, GPIOC, 2);
+const mcu_pin_obj_t pin_PC03 = PIN(2, GPIOC, 3);
+
+const mcu_pin_obj_t pin_PA00 = PIN(0, GPIOA, 0);
+const mcu_pin_obj_t pin_PA01 = PIN(0, GPIOA, 1);
+const mcu_pin_obj_t pin_PA02 = PIN(0, GPIOA, 2);
+const mcu_pin_obj_t pin_PA03 = PIN(0, GPIOA, 3);
+const mcu_pin_obj_t pin_PA04 = PIN(0, GPIOA, 4);
+const mcu_pin_obj_t pin_PA05 = PIN(0, GPIOA, 5);
+const mcu_pin_obj_t pin_PA06 = PIN(0, GPIOA, 6);
+const mcu_pin_obj_t pin_PA07 = PIN(0, GPIOA, 7);
+
+const mcu_pin_obj_t pin_PC04 = PIN(2, GPIOC, 4);
+const mcu_pin_obj_t pin_PC05 = PIN(2, GPIOC, 5);
+
+const mcu_pin_obj_t pin_PB00 = PIN(1, GPIOB, 0);
+const mcu_pin_obj_t pin_PB01 = PIN(1, GPIOB, 1);
+const mcu_pin_obj_t pin_PB02 = PIN(1, GPIOB, 2);
+
+const mcu_pin_obj_t pin_PF11 = PIN(5, GPIOF, 11); // 144 only
+const mcu_pin_obj_t pin_PF12 = PIN(5, GPIOF, 12); // 144 only
+const mcu_pin_obj_t pin_PF13 = PIN(5, GPIOF, 13); // 144 only
+const mcu_pin_obj_t pin_PF14 = PIN(5, GPIOF, 14); // 144 only
+const mcu_pin_obj_t pin_PF15 = PIN(5, GPIOF, 15); // 144 only
+
+const mcu_pin_obj_t pin_PG00 = PIN(6, GPIOG, 0); // 144 only
+const mcu_pin_obj_t pin_PG01 = PIN(6, GPIOG, 1); // 144 only
+
+const mcu_pin_obj_t pin_PE07 = PIN(4, GPIOE, 7);
+const mcu_pin_obj_t pin_PE08 = PIN(4, GPIOE, 8);
+const mcu_pin_obj_t pin_PE09 = PIN(4, GPIOE, 9);
+const mcu_pin_obj_t pin_PE10 = PIN(4, GPIOE, 10);
+const mcu_pin_obj_t pin_PE11 = PIN(4, GPIOE, 11);
+const mcu_pin_obj_t pin_PE12 = PIN(4, GPIOE, 12);
+const mcu_pin_obj_t pin_PE13 = PIN(4, GPIOE, 13);
+const mcu_pin_obj_t pin_PE14 = PIN(4, GPIOE, 14);
+const mcu_pin_obj_t pin_PE15 = PIN(4, GPIOE, 15);
+
+const mcu_pin_obj_t pin_PB10 = PIN(1, GPIOB, 10);
+const mcu_pin_obj_t pin_PB12 = PIN(1, GPIOB, 12);
+const mcu_pin_obj_t pin_PB11 = PIN(1, GPIOB, 11); // 144 only
+const mcu_pin_obj_t pin_PB13 = PIN(1, GPIOB, 13);
+const mcu_pin_obj_t pin_PB14 = PIN(1, GPIOB, 14);
+const mcu_pin_obj_t pin_PB15 = PIN(1, GPIOB, 15);
+
+const mcu_pin_obj_t pin_PD08 = PIN(3, GPIOD, 8);
+const mcu_pin_obj_t pin_PD09 = PIN(3, GPIOD, 9);
+const mcu_pin_obj_t pin_PD10 = PIN(3, GPIOD, 10);
+const mcu_pin_obj_t pin_PD11 = PIN(3, GPIOD, 11);
+const mcu_pin_obj_t pin_PD12 = PIN(3, GPIOD, 12);
+const mcu_pin_obj_t pin_PD13 = PIN(3, GPIOD, 13);
+const mcu_pin_obj_t pin_PD14 = PIN(3, GPIOD, 14);
+const mcu_pin_obj_t pin_PD15 = PIN(3, GPIOD, 15);
+
+const mcu_pin_obj_t pin_PG02 = PIN(6, GPIOG, 2); // 144 only
+const mcu_pin_obj_t pin_PG03 = PIN(6, GPIOG, 3); // 144 only
+const mcu_pin_obj_t pin_PG04 = PIN(6, GPIOG, 4); // 144 only
+const mcu_pin_obj_t pin_PG05 = PIN(6, GPIOG, 5); // 144 only
+const mcu_pin_obj_t pin_PG06 = PIN(6, GPIOG, 6); // 144 only
+const mcu_pin_obj_t pin_PG07 = PIN(6, GPIOG, 7); // 144 only
+const mcu_pin_obj_t pin_PG08 = PIN(6, GPIOG, 8); // 144 only
+
+const mcu_pin_obj_t pin_PC06 = PIN(2, GPIOC, 6);
+const mcu_pin_obj_t pin_PC07 = PIN(2, GPIOC, 7);
+const mcu_pin_obj_t pin_PC08 = PIN(2, GPIOC, 8);
+const mcu_pin_obj_t pin_PC09 = PIN(2, GPIOC, 9);
+
+const mcu_pin_obj_t pin_PA08 = PIN(0, GPIOA, 8);
+const mcu_pin_obj_t pin_PA09 = PIN(0, GPIOA, 9);
+const mcu_pin_obj_t pin_PA10 = PIN(0, GPIOA, 10);
+const mcu_pin_obj_t pin_PA11 = PIN(0, GPIOA, 11);
+const mcu_pin_obj_t pin_PA12 = PIN(0, GPIOA, 12);
+const mcu_pin_obj_t pin_PA13 = PIN(0, GPIOA, 13);
+const mcu_pin_obj_t pin_PA14 = PIN(0, GPIOA, 14);
+const mcu_pin_obj_t pin_PA15 = PIN(0, GPIOA, 15);
+
+const mcu_pin_obj_t pin_PC10 = PIN(2, GPIOC, 10);
+const mcu_pin_obj_t pin_PC11 = PIN(2, GPIOC, 11);
+const mcu_pin_obj_t pin_PC12 = PIN(2, GPIOC, 12);
+
+const mcu_pin_obj_t pin_PD00 = PIN(3, GPIOD, 0);
+const mcu_pin_obj_t pin_PD01 = PIN(3, GPIOD, 1);
+const mcu_pin_obj_t pin_PD02 = PIN(3, GPIOD, 2);
+const mcu_pin_obj_t pin_PD03 = PIN(3, GPIOD, 3);
+const mcu_pin_obj_t pin_PD04 = PIN(3, GPIOD, 4);
+const mcu_pin_obj_t pin_PD05 = PIN(3, GPIOD, 5);
+const mcu_pin_obj_t pin_PD06 = PIN(3, GPIOD, 6);
+const mcu_pin_obj_t pin_PD07 = PIN(3, GPIOD, 7);
+
+const mcu_pin_obj_t pin_PG09 = PIN(6, GPIOG, 9); // 144 only
+const mcu_pin_obj_t pin_PG10 = PIN(6, GPIOG, 10); // 144 only
+const mcu_pin_obj_t pin_PG11 = PIN(6, GPIOG, 11); // 144 only
+const mcu_pin_obj_t pin_PG12 = PIN(6, GPIOG, 12); // 144 only
+const mcu_pin_obj_t pin_PG13 = PIN(6, GPIOG, 13); // 144 only
+const mcu_pin_obj_t pin_PG14 = PIN(6, GPIOG, 14); // 144 only
+const mcu_pin_obj_t pin_PG15 = PIN(6, GPIOG, 15); // 144 only
+
+const mcu_pin_obj_t pin_PB03 = PIN(1, GPIOB, 3);
+const mcu_pin_obj_t pin_PB04 = PIN(1, GPIOB, 4);
+const mcu_pin_obj_t pin_PB05 = PIN(1, GPIOB, 5);
+const mcu_pin_obj_t pin_PB06 = PIN(1, GPIOB, 6);
+const mcu_pin_obj_t pin_PB07 = PIN(1, GPIOB, 7);
+const mcu_pin_obj_t pin_PB08 = PIN(1, GPIOB, 8);
+const mcu_pin_obj_t pin_PB09 = PIN(1, GPIOB, 9);
+
+const mcu_pin_obj_t pin_PE00 = PIN(4, GPIOE, 0);
+const mcu_pin_obj_t pin_PE01 = PIN(4, GPIOE, 1); \ No newline at end of file
diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.h b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.h
new file mode 100644
index 000000000..a74bf7c5d
--- /dev/null
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f412zx/pins.h
@@ -0,0 +1,156 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F412ZG_PINS_H
+#define MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F412ZG_PINS_H
+
+//Pins in datasheet order: DocID028087 Rev 7 page 50. LQFP100 only
+//pg 50
+extern const mcu_pin_obj_t pin_PE02;
+extern const mcu_pin_obj_t pin_PE03;
+extern const mcu_pin_obj_t pin_PE04;
+extern const mcu_pin_obj_t pin_PE05;
+extern const mcu_pin_obj_t pin_PE06;
+extern const mcu_pin_obj_t pin_PC13;
+//pg 51
+extern const mcu_pin_obj_t pin_PF00; // 144 only
+extern const mcu_pin_obj_t pin_PF01; // 144 only
+extern const mcu_pin_obj_t pin_PF02; // 144 only
+extern const mcu_pin_obj_t pin_PF03; // 144 only
+extern const mcu_pin_obj_t pin_PF04; // 144 only
+extern const mcu_pin_obj_t pin_PF05; // 144 only
+extern const mcu_pin_obj_t pin_PF06; // 144 only
+extern const mcu_pin_obj_t pin_PF07; // 144 only
+extern const mcu_pin_obj_t pin_PF08; // 144 only
+extern const mcu_pin_obj_t pin_PF09; // 144 only
+extern const mcu_pin_obj_t pin_PF10; // 144 only
+//pg 52
+extern const mcu_pin_obj_t pin_PC00;
+extern const mcu_pin_obj_t pin_PC01;
+extern const mcu_pin_obj_t pin_PC02;
+extern const mcu_pin_obj_t pin_PC03;
+extern const mcu_pin_obj_t pin_PA00;
+extern const mcu_pin_obj_t pin_PA01;
+extern const mcu_pin_obj_t pin_PA02;
+//pg 53
+extern const mcu_pin_obj_t pin_PA03;
+extern const mcu_pin_obj_t pin_PA04;
+extern const mcu_pin_obj_t pin_PA05;
+extern const mcu_pin_obj_t pin_PA06;
+extern const mcu_pin_obj_t pin_PA07;
+extern const mcu_pin_obj_t pin_PC04;
+//pg 54
+extern const mcu_pin_obj_t pin_PC05;
+extern const mcu_pin_obj_t pin_PB00;
+extern const mcu_pin_obj_t pin_PB01;
+extern const mcu_pin_obj_t pin_PB02;
+extern const mcu_pin_obj_t pin_PF11; // 144 only
+extern const mcu_pin_obj_t pin_PF12; // 144 only
+extern const mcu_pin_obj_t pin_PF13; // 144 only
+extern const mcu_pin_obj_t pin_PF14; // 144 only
+extern const mcu_pin_obj_t pin_PF15; // 144 only
+extern const mcu_pin_obj_t pin_PG00; // 144 only
+extern const mcu_pin_obj_t pin_PG01; // 144 only
+//pg 55
+extern const mcu_pin_obj_t pin_PE07;
+extern const mcu_pin_obj_t pin_PE08;
+extern const mcu_pin_obj_t pin_PE09;
+extern const mcu_pin_obj_t pin_PE10;
+extern const mcu_pin_obj_t pin_PE11;
+extern const mcu_pin_obj_t pin_PE12;
+extern const mcu_pin_obj_t pin_PE13;
+extern const mcu_pin_obj_t pin_PE14;
+//pg 56
+extern const mcu_pin_obj_t pin_PE15;
+extern const mcu_pin_obj_t pin_PB10;
+extern const mcu_pin_obj_t pin_PB11; // 144 only
+extern const mcu_pin_obj_t pin_PB12;
+extern const mcu_pin_obj_t pin_PB13;
+//pg 57
+extern const mcu_pin_obj_t pin_PB14;
+extern const mcu_pin_obj_t pin_PB15;
+extern const mcu_pin_obj_t pin_PD08;
+extern const mcu_pin_obj_t pin_PD09;
+extern const mcu_pin_obj_t pin_PD10;
+extern const mcu_pin_obj_t pin_PD11;
+extern const mcu_pin_obj_t pin_PD12;
+//pg 58
+extern const mcu_pin_obj_t pin_PD13;
+extern const mcu_pin_obj_t pin_PD14;
+extern const mcu_pin_obj_t pin_PD15;
+extern const mcu_pin_obj_t pin_PG02; // 144 only
+extern const mcu_pin_obj_t pin_PG03; // 144 only
+extern const mcu_pin_obj_t pin_PG04; // 144 only
+extern const mcu_pin_obj_t pin_PG05; // 144 only
+extern const mcu_pin_obj_t pin_PG06; // 144 only
+extern const mcu_pin_obj_t pin_PG07; // 144 only
+extern const mcu_pin_obj_t pin_PG08; // 144 only
+//pg 59
+extern const mcu_pin_obj_t pin_PC06;
+extern const mcu_pin_obj_t pin_PC07;
+extern const mcu_pin_obj_t pin_PC08;
+extern const mcu_pin_obj_t pin_PC09;
+extern const mcu_pin_obj_t pin_PA08;
+extern const mcu_pin_obj_t pin_PA09;
+extern const mcu_pin_obj_t pin_PA10;
+//pg 60
+extern const mcu_pin_obj_t pin_PA11;
+extern const mcu_pin_obj_t pin_PA12;
+extern const mcu_pin_obj_t pin_PA13;
+extern const mcu_pin_obj_t pin_PA14;
+extern const mcu_pin_obj_t pin_PA15;
+extern const mcu_pin_obj_t pin_PC10;
+extern const mcu_pin_obj_t pin_PC11;
+//pg 61
+extern const mcu_pin_obj_t pin_PC12;
+extern const mcu_pin_obj_t pin_PD00;
+extern const mcu_pin_obj_t pin_PD01;
+extern const mcu_pin_obj_t pin_PD02;
+extern const mcu_pin_obj_t pin_PD03;
+extern const mcu_pin_obj_t pin_PD04;
+extern const mcu_pin_obj_t pin_PD05;
+extern const mcu_pin_obj_t pin_PD06;
+extern const mcu_pin_obj_t pin_PD07;
+//pg 62
+extern const mcu_pin_obj_t pin_PG09; // 144 only
+extern const mcu_pin_obj_t pin_PG10; // 144 only
+extern const mcu_pin_obj_t pin_PG11; // 144 only
+extern const mcu_pin_obj_t pin_PG12; // 144 only
+extern const mcu_pin_obj_t pin_PG13; // 144 only
+extern const mcu_pin_obj_t pin_PG14; // 144 only
+extern const mcu_pin_obj_t pin_PG15; // 144 only
+extern const mcu_pin_obj_t pin_PB03;
+extern const mcu_pin_obj_t pin_PB04;
+//pg 63
+extern const mcu_pin_obj_t pin_PB05;
+extern const mcu_pin_obj_t pin_PB06;
+extern const mcu_pin_obj_t pin_PB07;
+extern const mcu_pin_obj_t pin_PB08;
+extern const mcu_pin_obj_t pin_PB09;
+extern const mcu_pin_obj_t pin_PE00;
+extern const mcu_pin_obj_t pin_PE01;
+
+#endif // MICROPY_INCLUDED_STM32F4_PERIPHERALS_STM32F412ZG_PINS_H
diff --git a/ports/stm32f4/qstrdefsport.h b/ports/stm32f4/qstrdefsport.h
new file mode 100644
index 000000000..3ba897069
--- /dev/null
+++ b/ports/stm32f4/qstrdefsport.h
@@ -0,0 +1 @@
+// qstrs specific to this port
diff --git a/ports/stm32f4/stm32f4 b/ports/stm32f4/stm32f4
new file mode 160000
+Subproject 12411ade32aeec4e49c969d8d095463b0c2fb1f
diff --git a/ports/stm32f4/supervisor/cpu.s b/ports/stm32f4/supervisor/cpu.s
new file mode 100755
index 000000000..9e6807a5e
--- /dev/null
+++ b/ports/stm32f4/supervisor/cpu.s
@@ -0,0 +1,27 @@
+.syntax unified
+.cpu cortex-m4
+.thumb
+.text
+.align 2
+
+@ uint cpu_get_regs_and_sp(r0=uint regs[10])
+.global cpu_get_regs_and_sp
+.thumb
+.thumb_func
+.type cpu_get_regs_and_sp, %function
+cpu_get_regs_and_sp:
+@ store registers into given array
+str r4, [r0], #4
+str r5, [r0], #4
+str r6, [r0], #4
+str r7, [r0], #4
+str r8, [r0], #4
+str r9, [r0], #4
+str r10, [r0], #4
+str r11, [r0], #4
+str r12, [r0], #4
+str r13, [r0], #4
+
+@ return the sp
+mov r0, sp
+bx lr
diff --git a/ports/stm32f4/supervisor/internal_flash.c b/ports/stm32f4/supervisor/internal_flash.c
new file mode 100644
index 000000000..fa776ae1d
--- /dev/null
+++ b/ports/stm32f4/supervisor/internal_flash.c
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "supervisor/flash.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include "extmod/vfs.h"
+#include "extmod/vfs_fat.h"
+#include "py/mphal.h"
+#include "py/obj.h"
+#include "py/runtime.h"
+#include "lib/oofatfs/ff.h"
+
+
+/*------------------------------------------------------------------*/
+/* Internal Flash API
+ *------------------------------------------------------------------*/
+static inline uint32_t lba2addr(uint32_t block) {
+}
+
+void supervisor_flash_init(void) {
+}
+
+uint32_t supervisor_flash_get_block_size(void) {
+ return FILESYSTEM_BLOCK_SIZE;
+}
+
+uint32_t supervisor_flash_get_block_count(void) {
+ return false;
+}
+
+void supervisor_flash_flush(void) {
+
+}
+
+mp_uint_t supervisor_flash_read_blocks(uint8_t *dest, uint32_t block, uint32_t num_blocks) {
+
+ return 0; // success
+}
+
+mp_uint_t supervisor_flash_write_blocks(const uint8_t *src, uint32_t lba, uint32_t num_blocks) {
+
+
+ return 0; // success
+}
+
+void supervisor_flash_release_cache(void) {
+}
+
diff --git a/ports/stm32f4/supervisor/internal_flash.h b/ports/stm32f4/supervisor/internal_flash.h
new file mode 100644
index 000000000..8c015a3e4
--- /dev/null
+++ b/ports/stm32f4/supervisor/internal_flash.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_H
+#define MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "py/mpconfig.h"
+
+#define INTERNAL_FLASH_SYSTICK_MASK (0x1ff) // 512ms
+#define INTERNAL_FLASH_IDLE_TICK(tick) (((tick) & INTERNAL_FLASH_SYSTICK_MASK) == 2)
+
+#endif // MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_H
diff --git a/ports/stm32f4/supervisor/internal_flash_root_pointers.h b/ports/stm32f4/supervisor/internal_flash_root_pointers.h
new file mode 100644
index 000000000..7a8681bd9
--- /dev/null
+++ b/ports/stm32f4/supervisor/internal_flash_root_pointers.h
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_ROOT_POINTERS_H
+#define MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_ROOT_POINTERS_H
+
+#define FLASH_ROOT_POINTERS
+
+#endif // MICROPY_INCLUDED_STM32F4_INTERNAL_FLASH_ROOT_POINTERS_H
diff --git a/ports/stm32f4/supervisor/port.c b/ports/stm32f4/supervisor/port.c
new file mode 100644
index 000000000..af4d1b8d8
--- /dev/null
+++ b/ports/stm32f4/supervisor/port.c
@@ -0,0 +1,80 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include "supervisor/port.h"
+#include "boards/board.h"
+#include "tick.h"
+
+#include "stm32f4/clocks.h"
+#include "stm32f4/gpio.h"
+
+#include "stm32f4xx_hal.h"
+
+//#include "shared-bindings/rtc/__init__.h"
+
+static void power_warning_handler(void) {
+ reset_into_safe_mode(BROWNOUT);
+}
+
+safe_mode_t port_init(void) {
+ HAL_Init();
+
+ stm32f4_peripherals_clocks_init();
+ stm32f4_peripherals_gpio_init();
+
+ tick_init();
+ board_init();
+
+ return NO_SAFE_MODE;
+}
+
+void reset_port(void) {
+
+}
+
+void reset_to_bootloader(void) {
+
+}
+
+void reset_cpu(void) {
+
+}
+
+extern uint32_t _ebss;
+// Place the word to save just after our BSS section that gets blanked.
+void port_set_saved_word(uint32_t value) {
+ _ebss = value;
+}
+
+uint32_t port_get_saved_word(void) {
+ return _ebss;
+}
+
+// void HardFault_Handler(void) {
+
+// }
diff --git a/ports/stm32f4/supervisor/qspi_flash.c b/ports/stm32f4/supervisor/qspi_flash.c
new file mode 100644
index 000000000..f3915273b
--- /dev/null
+++ b/ports/stm32f4/supervisor/qspi_flash.c
@@ -0,0 +1,162 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 hathach for Adafruit Industries
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/spi_flash_api.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include "py/mpconfig.h" // for EXTERNAL_FLASH_QSPI_DUAL
+//#include "nrfx_qspi.h"
+
+//#include "shared-bindings/microcontroller/__init__.h"
+
+#include "supervisor/shared/external_flash/common_commands.h"
+#include "supervisor/shared/external_flash/qspi_flash.h"
+
+bool spi_flash_command(uint8_t command) {
+ // nrf_qspi_cinstr_conf_t cinstr_cfg = {
+ // .opcode = command,
+ // .length = 1,
+ // .io2_level = true,
+ // .io3_level = true,
+ // .wipwait = false,
+ // .wren = false
+ // };
+ return false; //nrfx_qspi_cinstr_xfer(&cinstr_cfg, NULL, NULL) == NRFX_SUCCESS;
+}
+
+bool spi_flash_read_command(uint8_t command, uint8_t* response, uint32_t length) {
+ // nrf_qspi_cinstr_conf_t cinstr_cfg = {
+ // .opcode = command,
+ // .length = length + 1,
+ // .io2_level = true,
+ // .io3_level = true,
+ // .wipwait = false,
+ // .wren = false
+ // };
+ // return nrfx_qspi_cinstr_xfer(&cinstr_cfg, NULL, response) == NRFX_SUCCESS;
+ return false;
+
+}
+
+bool spi_flash_write_command(uint8_t command, uint8_t* data, uint32_t length) {
+ // nrf_qspi_cinstr_conf_t cinstr_cfg = {
+ // .opcode = command,
+ // .length = length + 1,
+ // .io2_level = true,
+ // .io3_level = true,
+ // .wipwait = false,
+ // .wren = false // We do this manually.
+ // };
+ // return nrfx_qspi_cinstr_xfer(&cinstr_cfg, data, NULL) == NRFX_SUCCESS;
+ return false;
+}
+
+bool spi_flash_sector_command(uint8_t command, uint32_t address) {
+ // if (command != CMD_SECTOR_ERASE) {
+ // return false;
+ // }
+ // return nrfx_qspi_erase(NRF_QSPI_ERASE_LEN_4KB, address) == NRFX_SUCCESS;
+ return false;
+}
+
+bool spi_flash_write_data(uint32_t address, uint8_t* data, uint32_t length) {
+ // return nrfx_qspi_write(data, length, address) == NRFX_SUCCESS;
+ return false;
+}
+
+bool spi_flash_read_data(uint32_t address, uint8_t* data, uint32_t length) {
+ // return nrfx_qspi_read(data, length, address) == NRFX_SUCCESS;
+ return false;
+}
+
+void spi_flash_init(void) {
+ // Init QSPI flash
+// nrfx_qspi_config_t qspi_cfg = {
+// .xip_offset = 0,
+// .pins = {
+// .sck_pin = MICROPY_QSPI_SCK,
+// .csn_pin = MICROPY_QSPI_CS,
+// .io0_pin = MICROPY_QSPI_DATA0,
+// .io1_pin = NRF_QSPI_PIN_NOT_CONNECTED,
+// .io2_pin = NRF_QSPI_PIN_NOT_CONNECTED,
+// .io3_pin = NRF_QSPI_PIN_NOT_CONNECTED,
+
+// },
+// .prot_if = {
+// .readoc = NRF_QSPI_READOC_FASTREAD,
+// .writeoc = NRF_QSPI_WRITEOC_PP,
+// .addrmode = NRF_QSPI_ADDRMODE_24BIT,
+// .dpmconfig = false
+// },
+// .phy_if = {
+// .sck_freq = NRF_QSPI_FREQ_32MDIV16, // Start at a slow 2MHz and speed up once we know what we're talking to.
+// .sck_delay = 10, // min time CS must stay high before going low again. in unit of 62.5 ns
+// .spi_mode = NRF_QSPI_MODE_0,
+// .dpmen = false
+// },
+// .irq_priority = 7,
+// };
+
+// #if EXTERNAL_FLASH_QSPI_DUAL
+// qspi_cfg.pins.io1_pin = MICROPY_QSPI_DATA1;
+// qspi_cfg.prot_if.readoc = NRF_QSPI_READOC_READ2O;
+// qspi_cfg.prot_if.writeoc = NRF_QSPI_WRITEOC_PP2O;
+// #else
+// qspi_cfg.pins.io1_pin = MICROPY_QSPI_DATA1;
+// qspi_cfg.pins.io2_pin = MICROPY_QSPI_DATA2;
+// qspi_cfg.pins.io3_pin = MICROPY_QSPI_DATA3;
+// qspi_cfg.prot_if.readoc = NRF_QSPI_READOC_READ4IO;
+// qspi_cfg.prot_if.writeoc = NRF_QSPI_WRITEOC_PP4O;
+// #endif
+
+// // No callback for blocking API
+// nrfx_qspi_init(&qspi_cfg, NULL, NULL);
+}
+
+void spi_flash_init_device(const external_flash_device* device) {
+ // check_quad_enable(device);
+
+ // // Switch to single output line if the device doesn't support quad programs.
+ // if (!device->supports_qspi_writes) {
+ // NRF_QSPI->IFCONFIG0 &= ~QSPI_IFCONFIG0_WRITEOC_Msk;
+ // NRF_QSPI->IFCONFIG0 |= QSPI_IFCONFIG0_WRITEOC_PP << QSPI_IFCONFIG0_WRITEOC_Pos;
+ // }
+
+ // // Speed up as much as we can.
+ // // Start at 16 MHz and go down.
+ // // At 32 MHz GD25Q16C doesn't work reliably on Feather 52840, even though it should work up to 104 MHz.
+ // // sckfreq = 0 is 32 Mhz
+ // // sckfreq = 1 is 16 MHz, etc.
+ // uint8_t sckfreq = 1;
+ // while (32000000 / (sckfreq + 1) > device->max_clock_speed_mhz * 1000000 && sckfreq < 16) {
+ // sckfreq += 1;
+ // }
+ // NRF_QSPI->IFCONFIG1 &= ~QSPI_IFCONFIG1_SCKFREQ_Msk;
+ // NRF_QSPI->IFCONFIG1 |= sckfreq << QSPI_IFCONFIG1_SCKFREQ_Pos;
+}
diff --git a/ports/stm32f4/supervisor/serial.c b/ports/stm32f4/supervisor/serial.c
new file mode 100644
index 000000000..3154dc3e5
--- /dev/null
+++ b/ports/stm32f4/supervisor/serial.c
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017, 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mphal.h"
+#include <string.h>
+#include "supervisor/serial.h"
+#include "stm32f4xx_hal.h"
+
+UART_HandleTypeDef huart2;
+
+void serial_init(void) {
+ huart2.Instance = USART2;
+ huart2.Init.BaudRate = 9600;
+ huart2.Init.WordLength = UART_WORDLENGTH_8B;
+ huart2.Init.StopBits = UART_STOPBITS_1;
+ huart2.Init.Parity = UART_PARITY_NONE;
+ huart2.Init.Mode = UART_MODE_TX_RX;
+ huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+ huart2.Init.OverSampling = UART_OVERSAMPLING_16;
+ if (HAL_UART_Init(&huart2) == HAL_OK)
+ {
+ //HAL_GPIO_WritePin(GPIOE, GPIO_PIN_1, GPIO_PIN_RESET);
+ }
+ //HAL_UART_Transmit(&huart2, (uint8_t*)"Serial On", 9, 5000);
+ //HAL_GPIO_WritePin(GPIOE, GPIO_PIN_2, GPIO_PIN_RESET);
+}
+
+bool serial_connected(void) {
+ return true;
+}
+
+char serial_read(void) {
+ uint8_t data;
+ HAL_UART_Receive(&huart2, &data, 1,5000);
+ return data;
+}
+
+bool serial_bytes_available(void) {
+ return __HAL_UART_GET_FLAG(&huart2, UART_FLAG_RXNE);
+}
+
+void serial_write(const char* text) {
+ serial_write_substring(text, strlen(text));
+}
+
+void serial_write_substring(const char *text, uint32_t len) {
+ if (len == 0) {
+ return;
+ }
+ HAL_UART_Transmit(&huart2, (uint8_t*)text, len, 5000);
+}
+
diff --git a/ports/stm32f4/supervisor/usb.c b/ports/stm32f4/supervisor/usb.c
new file mode 100644
index 000000000..913523523
--- /dev/null
+++ b/ports/stm32f4/supervisor/usb.c
@@ -0,0 +1,80 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 hathach for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "tick.h"
+#include "supervisor/usb.h"
+#include "lib/utils/interrupt_char.h"
+#include "lib/mp-readline/readline.h"
+#include "stm32f4xx_hal.h"
+
+#define USB_OTGFS_VBUS_Pin GPIO_PIN_9
+#define USB_OTGFS_VBUS_GPIO_Port GPIOA
+#define USB_OTGFS_ID_Pin GPIO_PIN_10
+#define USB_OTGFS_ID_GPIO_Port GPIOA
+#define USB_OTGFS_DM_Pin GPIO_PIN_11
+#define USB_OTGFS_DM_GPIO_Port GPIOA
+#define USB_OTGFS_DP_Pin GPIO_PIN_12
+#define USB_OTGFS_DP_GPIO_Port GPIOA
+
+
+void init_usb_hardware(void) {
+ // HAL_GPIO_WritePin(GPIOE, GPIO_PIN_1, GPIO_PIN_RESET); //LED 2
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ /**USB_OTG_FS GPIO Configuration
+ PA10 ------> USB_OTG_FS_ID
+ PA11 ------> USB_OTG_FS_DM
+ PA12 ------> USB_OTG_FS_DP
+ */
+ GPIO_InitStruct.Pin = USB_OTGFS_VBUS_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ HAL_GPIO_Init(USB_OTGFS_VBUS_GPIO_Port, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = USB_OTGFS_DM_Pin|USB_OTGFS_DP_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ //TinyUSB suggestion
+ GPIO_InitStruct.Pin = USB_OTGFS_ID_Pin;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ /* Peripheral clock enable */
+ __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+
+ /* Peripheral interrupt init */
+ HAL_NVIC_SetPriority(OTG_FS_IRQn, 0, 0);
+ HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
+
+ //HAL_GPIO_WritePin(GPIOE, GPIO_PIN_2, GPIO_PIN_RESET); //LED 3
+}
diff --git a/ports/stm32f4/system_stm32f4xx.c b/ports/stm32f4/system_stm32f4xx.c
new file mode 100644
index 000000000..3303f969d
--- /dev/null
+++ b/ports/stm32f4/system_stm32f4xx.c
@@ -0,0 +1,761 @@
+/**
+ ******************************************************************************
+ * @file system_stm32f4xx.c
+ * @author MCD Application Team
+ * @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File.
+ *
+ * This file provides two functions and one global variable to be called from
+ * user application:
+ * - SystemInit(): This function is called at startup just after reset and
+ * before branch to main program. This call is made inside
+ * the "startup_stm32f4xx.s" file.
+ *
+ * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+ * by the user application to setup the SysTick
+ * timer or configure other parameters.
+ *
+ * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+ * be called whenever the core clock is changed
+ * during program execution.
+ *
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/** @addtogroup CMSIS
+ * @{
+ */
+
+/** @addtogroup stm32f4xx_system
+ * @{
+ */
+
+/** @addtogroup STM32F4xx_System_Private_Includes
+ * @{
+ */
+
+
+#include "stm32f4xx.h"
+
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)25000000) /*!< Default value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_TypesDefinitions
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_Defines
+ * @{
+ */
+
+/************************* Miscellaneous Configuration ************************/
+/*!< Uncomment the following line if you need to use external SRAM or SDRAM as data memory */
+#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx)\
+ || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) || defined(STM32F412Vx)
+/* #define DATA_IN_ExtSRAM */
+#endif /* STM32F40xxx || STM32F41xxx || STM32F42xxx || STM32F43xxx || STM32F469xx || STM32F479xx ||\
+ STM32F412Zx || STM32F412Vx */
+
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
+/* #define DATA_IN_ExtSDRAM */
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx ||\
+ STM32F479xx */
+
+/*!< Uncomment the following line if you need to relocate your vector Table in
+ Internal SRAM. */
+/* #define VECT_TAB_SRAM */
+#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
+ This value must be a multiple of 0x200. */
+/******************************************************************************/
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_Variables
+ * @{
+ */
+ /* This variable is updated in three ways:
+ 1) by calling CMSIS function SystemCoreClockUpdate()
+ 2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+ 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+ Note: If you use this function to configure the system clock; then there
+ is no need to call the 2 first functions listed above, since SystemCoreClock
+ variable is updated automatically.
+ */
+uint32_t SystemCoreClock = 16000000;
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBPrescTable[8] = {0, 0, 0, 0, 1, 2, 3, 4};
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_FunctionPrototypes
+ * @{
+ */
+
+#if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
+ static void SystemInit_ExtMemCtl(void);
+#endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F4xx_System_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Setup the microcontroller system
+ * Initialize the FPU setting, vector table location and External memory
+ * configuration.
+ * @param None
+ * @retval None
+ */
+void SystemInit(void)
+{
+ /* FPU settings ------------------------------------------------------------*/
+ #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
+ SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
+ #endif
+ /* Reset the RCC clock configuration to the default reset state ------------*/
+ /* Set HSION bit */
+ RCC->CR |= (uint32_t)0x00000001;
+
+ /* Reset CFGR register */
+ RCC->CFGR = 0x00000000;
+
+ /* Reset HSEON, CSSON and PLLON bits */
+ RCC->CR &= (uint32_t)0xFEF6FFFF;
+
+ /* Reset PLLCFGR register */
+ RCC->PLLCFGR = 0x24003010;
+
+ /* Reset HSEBYP bit */
+ RCC->CR &= (uint32_t)0xFFFBFFFF;
+
+ /* Disable all interrupts */
+ RCC->CIR = 0x00000000;
+
+#if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
+ SystemInit_ExtMemCtl();
+#endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
+
+ /* Configure the Vector Table location add offset address ------------------*/
+#ifdef VECT_TAB_SRAM
+ SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
+#else
+ SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
+#endif
+}
+
+/**
+ * @brief Update SystemCoreClock variable according to Clock Register Values.
+ * The SystemCoreClock variable contains the core clock (HCLK), it can
+ * be used by the user application to setup the SysTick timer or configure
+ * other parameters.
+ *
+ * @note Each time the core clock (HCLK) changes, this function must be called
+ * to update SystemCoreClock variable value. Otherwise, any configuration
+ * based on this variable will be incorrect.
+ *
+ * @note - The system frequency computed by this function is not the real
+ * frequency in the chip. It is calculated based on the predefined
+ * constant and the selected clock source:
+ *
+ * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
+ *
+ * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
+ *
+ * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
+ * or HSI_VALUE(*) multiplied/divided by the PLL factors.
+ *
+ * (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value
+ * 16 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (its value
+ * depends on the application requirements), user has to ensure that HSE_VALUE
+ * is same as the real frequency of the crystal used. Otherwise, this function
+ * may have wrong result.
+ *
+ * - The result of this function could be not correct when using fractional
+ * value for HSE crystal.
+ *
+ * @param None
+ * @retval None
+ */
+void SystemCoreClockUpdate(void)
+{
+ uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ tmp = RCC->CFGR & RCC_CFGR_SWS;
+
+ switch (tmp)
+ {
+ case 0x00: /* HSI used as system clock source */
+ SystemCoreClock = HSI_VALUE;
+ break;
+ case 0x04: /* HSE used as system clock source */
+ SystemCoreClock = HSE_VALUE;
+ break;
+ case 0x08: /* PLL used as system clock source */
+
+ /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
+ SYSCLK = PLL_VCO / PLL_P
+ */
+ pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
+ pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
+
+ if (pllsource != 0)
+ {
+ /* HSE used as PLL clock source */
+ pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
+ }
+ else
+ {
+ /* HSI used as PLL clock source */
+ pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
+ }
+
+ pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
+ SystemCoreClock = pllvco/pllp;
+ break;
+ default:
+ SystemCoreClock = HSI_VALUE;
+ break;
+ }
+ /* Compute HCLK frequency --------------------------------------------------*/
+ /* Get HCLK prescaler */
+ tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+ /* HCLK frequency */
+ SystemCoreClock >>= tmp;
+}
+
+#if defined (DATA_IN_ExtSRAM) && defined (DATA_IN_ExtSDRAM)
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F469xx) || defined(STM32F479xx)
+/**
+ * @brief Setup the external memory controller.
+ * Called in startup_stm32f4xx.s before jump to main.
+ * This function configures the external memories (SRAM/SDRAM)
+ * This SRAM/SDRAM will be used as program data memory (including heap and stack).
+ * @param None
+ * @retval None
+ */
+void SystemInit_ExtMemCtl(void)
+{
+ __IO uint32_t tmp = 0x00;
+
+ register uint32_t tmpreg = 0, timeout = 0xFFFF;
+ register __IO uint32_t index;
+
+ /* Enable GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH and GPIOI interface clock */
+ RCC->AHB1ENR |= 0x000001F8;
+
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB1ENR, RCC_AHB1ENR_GPIOCEN);
+
+ /* Connect PDx pins to FMC Alternate function */
+ GPIOD->AFR[0] = 0x00CCC0CC;
+ GPIOD->AFR[1] = 0xCCCCCCCC;
+ /* Configure PDx pins in Alternate function mode */
+ GPIOD->MODER = 0xAAAA0A8A;
+ /* Configure PDx pins speed to 100 MHz */
+ GPIOD->OSPEEDR = 0xFFFF0FCF;
+ /* Configure PDx pins Output type to push-pull */
+ GPIOD->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PDx pins */
+ GPIOD->PUPDR = 0x00000000;
+
+ /* Connect PEx pins to FMC Alternate function */
+ GPIOE->AFR[0] = 0xC00CC0CC;
+ GPIOE->AFR[1] = 0xCCCCCCCC;
+ /* Configure PEx pins in Alternate function mode */
+ GPIOE->MODER = 0xAAAA828A;
+ /* Configure PEx pins speed to 100 MHz */
+ GPIOE->OSPEEDR = 0xFFFFC3CF;
+ /* Configure PEx pins Output type to push-pull */
+ GPIOE->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PEx pins */
+ GPIOE->PUPDR = 0x00000000;
+
+ /* Connect PFx pins to FMC Alternate function */
+ GPIOF->AFR[0] = 0xCCCCCCCC;
+ GPIOF->AFR[1] = 0xCCCCCCCC;
+ /* Configure PFx pins in Alternate function mode */
+ GPIOF->MODER = 0xAA800AAA;
+ /* Configure PFx pins speed to 50 MHz */
+ GPIOF->OSPEEDR = 0xAA800AAA;
+ /* Configure PFx pins Output type to push-pull */
+ GPIOF->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PFx pins */
+ GPIOF->PUPDR = 0x00000000;
+
+ /* Connect PGx pins to FMC Alternate function */
+ GPIOG->AFR[0] = 0xCCCCCCCC;
+ GPIOG->AFR[1] = 0xCCCCCCCC;
+ /* Configure PGx pins in Alternate function mode */
+ GPIOG->MODER = 0xAAAAAAAA;
+ /* Configure PGx pins speed to 50 MHz */
+ GPIOG->OSPEEDR = 0xAAAAAAAA;
+ /* Configure PGx pins Output type to push-pull */
+ GPIOG->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PGx pins */
+ GPIOG->PUPDR = 0x00000000;
+
+ /* Connect PHx pins to FMC Alternate function */
+ GPIOH->AFR[0] = 0x00C0CC00;
+ GPIOH->AFR[1] = 0xCCCCCCCC;
+ /* Configure PHx pins in Alternate function mode */
+ GPIOH->MODER = 0xAAAA08A0;
+ /* Configure PHx pins speed to 50 MHz */
+ GPIOH->OSPEEDR = 0xAAAA08A0;
+ /* Configure PHx pins Output type to push-pull */
+ GPIOH->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PHx pins */
+ GPIOH->PUPDR = 0x00000000;
+
+ /* Connect PIx pins to FMC Alternate function */
+ GPIOI->AFR[0] = 0xCCCCCCCC;
+ GPIOI->AFR[1] = 0x00000CC0;
+ /* Configure PIx pins in Alternate function mode */
+ GPIOI->MODER = 0x0028AAAA;
+ /* Configure PIx pins speed to 50 MHz */
+ GPIOI->OSPEEDR = 0x0028AAAA;
+ /* Configure PIx pins Output type to push-pull */
+ GPIOI->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PIx pins */
+ GPIOI->PUPDR = 0x00000000;
+
+/*-- FMC Configuration -------------------------------------------------------*/
+ /* Enable the FMC interface clock */
+ RCC->AHB3ENR |= 0x00000001;
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB3ENR, RCC_AHB3ENR_FMCEN);
+
+ FMC_Bank5_6->SDCR[0] = 0x000019E4;
+ FMC_Bank5_6->SDTR[0] = 0x01115351;
+
+ /* SDRAM initialization sequence */
+ /* Clock enable command */
+ FMC_Bank5_6->SDCMR = 0x00000011;
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Delay */
+ for (index = 0; index<1000; index++);
+
+ /* PALL command */
+ FMC_Bank5_6->SDCMR = 0x00000012;
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Auto refresh command */
+ FMC_Bank5_6->SDCMR = 0x00000073;
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* MRD register program */
+ FMC_Bank5_6->SDCMR = 0x00046014;
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Set refresh count */
+ tmpreg = FMC_Bank5_6->SDRTR;
+ FMC_Bank5_6->SDRTR = (tmpreg | (0x0000027C<<1));
+
+ /* Disable write protection */
+ tmpreg = FMC_Bank5_6->SDCR[0];
+ FMC_Bank5_6->SDCR[0] = (tmpreg & 0xFFFFFDFF);
+
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
+ /* Configure and enable Bank1_SRAM2 */
+ FMC_Bank1->BTCR[2] = 0x00001011;
+ FMC_Bank1->BTCR[3] = 0x00000201;
+ FMC_Bank1E->BWTR[2] = 0x0fffffff;
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
+#if defined(STM32F469xx) || defined(STM32F479xx)
+ /* Configure and enable Bank1_SRAM2 */
+ FMC_Bank1->BTCR[2] = 0x00001091;
+ FMC_Bank1->BTCR[3] = 0x00110212;
+ FMC_Bank1E->BWTR[2] = 0x0fffffff;
+#endif /* STM32F469xx || STM32F479xx */
+
+ (void)(tmp);
+}
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx */
+#elif defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
+/**
+ * @brief Setup the external memory controller.
+ * Called in startup_stm32f4xx.s before jump to main.
+ * This function configures the external memories (SRAM/SDRAM)
+ * This SRAM/SDRAM will be used as program data memory (including heap and stack).
+ * @param None
+ * @retval None
+ */
+void SystemInit_ExtMemCtl(void)
+{
+ __IO uint32_t tmp = 0x00;
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
+#if defined (DATA_IN_ExtSDRAM)
+ register uint32_t tmpreg = 0, timeout = 0xFFFF;
+ register __IO uint32_t index;
+
+#if defined(STM32F446xx)
+ /* Enable GPIOA, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG interface
+ clock */
+ RCC->AHB1ENR |= 0x0000007D;
+#else
+ /* Enable GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH and GPIOI interface
+ clock */
+ RCC->AHB1ENR |= 0x000001F8;
+#endif /* STM32F446xx */
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB1ENR, RCC_AHB1ENR_GPIOCEN);
+
+#if defined(STM32F446xx)
+ /* Connect PAx pins to FMC Alternate function */
+ GPIOA->AFR[0] |= 0xC0000000;
+ GPIOA->AFR[1] |= 0x00000000;
+ /* Configure PDx pins in Alternate function mode */
+ GPIOA->MODER |= 0x00008000;
+ /* Configure PDx pins speed to 50 MHz */
+ GPIOA->OSPEEDR |= 0x00008000;
+ /* Configure PDx pins Output type to push-pull */
+ GPIOA->OTYPER |= 0x00000000;
+ /* No pull-up, pull-down for PDx pins */
+ GPIOA->PUPDR |= 0x00000000;
+
+ /* Connect PCx pins to FMC Alternate function */
+ GPIOC->AFR[0] |= 0x00CC0000;
+ GPIOC->AFR[1] |= 0x00000000;
+ /* Configure PDx pins in Alternate function mode */
+ GPIOC->MODER |= 0x00000A00;
+ /* Configure PDx pins speed to 50 MHz */
+ GPIOC->OSPEEDR |= 0x00000A00;
+ /* Configure PDx pins Output type to push-pull */
+ GPIOC->OTYPER |= 0x00000000;
+ /* No pull-up, pull-down for PDx pins */
+ GPIOC->PUPDR |= 0x00000000;
+#endif /* STM32F446xx */
+
+ /* Connect PDx pins to FMC Alternate function */
+ GPIOD->AFR[0] = 0x000000CC;
+ GPIOD->AFR[1] = 0xCC000CCC;
+ /* Configure PDx pins in Alternate function mode */
+ GPIOD->MODER = 0xA02A000A;
+ /* Configure PDx pins speed to 50 MHz */
+ GPIOD->OSPEEDR = 0xA02A000A;
+ /* Configure PDx pins Output type to push-pull */
+ GPIOD->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PDx pins */
+ GPIOD->PUPDR = 0x00000000;
+
+ /* Connect PEx pins to FMC Alternate function */
+ GPIOE->AFR[0] = 0xC00000CC;
+ GPIOE->AFR[1] = 0xCCCCCCCC;
+ /* Configure PEx pins in Alternate function mode */
+ GPIOE->MODER = 0xAAAA800A;
+ /* Configure PEx pins speed to 50 MHz */
+ GPIOE->OSPEEDR = 0xAAAA800A;
+ /* Configure PEx pins Output type to push-pull */
+ GPIOE->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PEx pins */
+ GPIOE->PUPDR = 0x00000000;
+
+ /* Connect PFx pins to FMC Alternate function */
+ GPIOF->AFR[0] = 0xCCCCCCCC;
+ GPIOF->AFR[1] = 0xCCCCCCCC;
+ /* Configure PFx pins in Alternate function mode */
+ GPIOF->MODER = 0xAA800AAA;
+ /* Configure PFx pins speed to 50 MHz */
+ GPIOF->OSPEEDR = 0xAA800AAA;
+ /* Configure PFx pins Output type to push-pull */
+ GPIOF->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PFx pins */
+ GPIOF->PUPDR = 0x00000000;
+
+ /* Connect PGx pins to FMC Alternate function */
+ GPIOG->AFR[0] = 0xCCCCCCCC;
+ GPIOG->AFR[1] = 0xCCCCCCCC;
+ /* Configure PGx pins in Alternate function mode */
+ GPIOG->MODER = 0xAAAAAAAA;
+ /* Configure PGx pins speed to 50 MHz */
+ GPIOG->OSPEEDR = 0xAAAAAAAA;
+ /* Configure PGx pins Output type to push-pull */
+ GPIOG->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PGx pins */
+ GPIOG->PUPDR = 0x00000000;
+
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F469xx) || defined(STM32F479xx)
+ /* Connect PHx pins to FMC Alternate function */
+ GPIOH->AFR[0] = 0x00C0CC00;
+ GPIOH->AFR[1] = 0xCCCCCCCC;
+ /* Configure PHx pins in Alternate function mode */
+ GPIOH->MODER = 0xAAAA08A0;
+ /* Configure PHx pins speed to 50 MHz */
+ GPIOH->OSPEEDR = 0xAAAA08A0;
+ /* Configure PHx pins Output type to push-pull */
+ GPIOH->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PHx pins */
+ GPIOH->PUPDR = 0x00000000;
+
+ /* Connect PIx pins to FMC Alternate function */
+ GPIOI->AFR[0] = 0xCCCCCCCC;
+ GPIOI->AFR[1] = 0x00000CC0;
+ /* Configure PIx pins in Alternate function mode */
+ GPIOI->MODER = 0x0028AAAA;
+ /* Configure PIx pins speed to 50 MHz */
+ GPIOI->OSPEEDR = 0x0028AAAA;
+ /* Configure PIx pins Output type to push-pull */
+ GPIOI->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PIx pins */
+ GPIOI->PUPDR = 0x00000000;
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx */
+
+/*-- FMC Configuration -------------------------------------------------------*/
+ /* Enable the FMC interface clock */
+ RCC->AHB3ENR |= 0x00000001;
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB3ENR, RCC_AHB3ENR_FMCEN);
+
+ /* Configure and enable SDRAM bank1 */
+#if defined(STM32F446xx)
+ FMC_Bank5_6->SDCR[0] = 0x00001954;
+#else
+ FMC_Bank5_6->SDCR[0] = 0x000019E4;
+#endif /* STM32F446xx */
+ FMC_Bank5_6->SDTR[0] = 0x01115351;
+
+ /* SDRAM initialization sequence */
+ /* Clock enable command */
+ FMC_Bank5_6->SDCMR = 0x00000011;
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Delay */
+ for (index = 0; index<1000; index++);
+
+ /* PALL command */
+ FMC_Bank5_6->SDCMR = 0x00000012;
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Auto refresh command */
+#if defined(STM32F446xx)
+ FMC_Bank5_6->SDCMR = 0x000000F3;
+#else
+ FMC_Bank5_6->SDCMR = 0x00000073;
+#endif /* STM32F446xx */
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* MRD register program */
+#if defined(STM32F446xx)
+ FMC_Bank5_6->SDCMR = 0x00044014;
+#else
+ FMC_Bank5_6->SDCMR = 0x00046014;
+#endif /* STM32F446xx */
+ timeout = 0xFFFF;
+ while((tmpreg != 0) && (timeout-- > 0))
+ {
+ tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
+ }
+
+ /* Set refresh count */
+ tmpreg = FMC_Bank5_6->SDRTR;
+#if defined(STM32F446xx)
+ FMC_Bank5_6->SDRTR = (tmpreg | (0x0000050C<<1));
+#else
+ FMC_Bank5_6->SDRTR = (tmpreg | (0x0000027C<<1));
+#endif /* STM32F446xx */
+
+ /* Disable write protection */
+ tmpreg = FMC_Bank5_6->SDCR[0];
+ FMC_Bank5_6->SDCR[0] = (tmpreg & 0xFFFFFDFF);
+#endif /* DATA_IN_ExtSDRAM */
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
+
+#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx)\
+ || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)\
+ || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) || defined(STM32F412Vx)
+
+#if defined(DATA_IN_ExtSRAM)
+/*-- GPIOs Configuration -----------------------------------------------------*/
+ /* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
+ RCC->AHB1ENR |= 0x00000078;
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB1ENR, RCC_AHB1ENR_GPIODEN);
+
+ /* Connect PDx pins to FMC Alternate function */
+ GPIOD->AFR[0] = 0x00CCC0CC;
+ GPIOD->AFR[1] = 0xCCCCCCCC;
+ /* Configure PDx pins in Alternate function mode */
+ GPIOD->MODER = 0xAAAA0A8A;
+ /* Configure PDx pins speed to 100 MHz */
+ GPIOD->OSPEEDR = 0xFFFF0FCF;
+ /* Configure PDx pins Output type to push-pull */
+ GPIOD->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PDx pins */
+ GPIOD->PUPDR = 0x00000000;
+
+ /* Connect PEx pins to FMC Alternate function */
+ GPIOE->AFR[0] = 0xC00CC0CC;
+ GPIOE->AFR[1] = 0xCCCCCCCC;
+ /* Configure PEx pins in Alternate function mode */
+ GPIOE->MODER = 0xAAAA828A;
+ /* Configure PEx pins speed to 100 MHz */
+ GPIOE->OSPEEDR = 0xFFFFC3CF;
+ /* Configure PEx pins Output type to push-pull */
+ GPIOE->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PEx pins */
+ GPIOE->PUPDR = 0x00000000;
+
+ /* Connect PFx pins to FMC Alternate function */
+ GPIOF->AFR[0] = 0x00CCCCCC;
+ GPIOF->AFR[1] = 0xCCCC0000;
+ /* Configure PFx pins in Alternate function mode */
+ GPIOF->MODER = 0xAA000AAA;
+ /* Configure PFx pins speed to 100 MHz */
+ GPIOF->OSPEEDR = 0xFF000FFF;
+ /* Configure PFx pins Output type to push-pull */
+ GPIOF->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PFx pins */
+ GPIOF->PUPDR = 0x00000000;
+
+ /* Connect PGx pins to FMC Alternate function */
+ GPIOG->AFR[0] = 0x00CCCCCC;
+ GPIOG->AFR[1] = 0x000000C0;
+ /* Configure PGx pins in Alternate function mode */
+ GPIOG->MODER = 0x00085AAA;
+ /* Configure PGx pins speed to 100 MHz */
+ GPIOG->OSPEEDR = 0x000CAFFF;
+ /* Configure PGx pins Output type to push-pull */
+ GPIOG->OTYPER = 0x00000000;
+ /* No pull-up, pull-down for PGx pins */
+ GPIOG->PUPDR = 0x00000000;
+
+/*-- FMC/FSMC Configuration --------------------------------------------------*/
+ /* Enable the FMC/FSMC interface clock */
+ RCC->AHB3ENR |= 0x00000001;
+
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB3ENR, RCC_AHB3ENR_FMCEN);
+ /* Configure and enable Bank1_SRAM2 */
+ FMC_Bank1->BTCR[2] = 0x00001011;
+ FMC_Bank1->BTCR[3] = 0x00000201;
+ FMC_Bank1E->BWTR[2] = 0x0fffffff;
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
+#if defined(STM32F469xx) || defined(STM32F479xx)
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB3ENR, RCC_AHB3ENR_FMCEN);
+ /* Configure and enable Bank1_SRAM2 */
+ FMC_Bank1->BTCR[2] = 0x00001091;
+ FMC_Bank1->BTCR[3] = 0x00110212;
+ FMC_Bank1E->BWTR[2] = 0x0fffffff;
+#endif /* STM32F469xx || STM32F479xx */
+#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx)\
+ || defined(STM32F412Zx) || defined(STM32F412Vx)
+ /* Delay after an RCC peripheral clock enabling */
+ tmp = READ_BIT(RCC->AHB3ENR, RCC_AHB3ENR_FSMCEN);
+ /* Configure and enable Bank1_SRAM2 */
+ FSMC_Bank1->BTCR[2] = 0x00001011;
+ FSMC_Bank1->BTCR[3] = 0x00000201;
+ FSMC_Bank1E->BWTR[2] = 0x0FFFFFFF;
+#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F412Zx || STM32F412Vx */
+
+#endif /* DATA_IN_ExtSRAM */
+#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx ||\
+ STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F412Zx || STM32F412Vx */
+ (void)(tmp);
+}
+#endif /* DATA_IN_ExtSRAM && DATA_IN_ExtSDRAM */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/ports/stm32f4/tick.c b/ports/stm32f4/tick.c
new file mode 100644
index 000000000..5bd2da6ed
--- /dev/null
+++ b/ports/stm32f4/tick.c
@@ -0,0 +1,85 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "tick.h"
+
+#include "supervisor/shared/autoreload.h"
+#include "supervisor/filesystem.h"
+#include "shared-module/gamepad/__init__.h"
+#include "shared-bindings/microcontroller/Processor.h"
+
+#include "stm32f4xx.h"
+
+// Global millisecond tick count
+volatile uint64_t ticks_ms = 0;
+
+void SysTick_Handler(void) {
+ // SysTick interrupt handler called when the SysTick timer reaches zero
+ // (every millisecond).
+ ticks_ms += 1;
+
+#if CIRCUITPY_FILESYSTEM_FLUSH_INTERVAL_MS > 0
+ filesystem_tick();
+#endif
+#ifdef CIRCUITPY_AUTORELOAD_DELAY_MS
+ autoreload_tick();
+#endif
+#ifdef CIRCUITPY_GAMEPAD_TICKS
+ if (!(ticks_ms & CIRCUITPY_GAMEPAD_TICKS)) {
+ gamepad_tick();
+ }
+#endif
+}
+
+void tick_init() {
+ uint32_t ticks_per_ms = SystemCoreClock/ 1000;
+ SysTick_Config(ticks_per_ms); // interrupt is enabled
+}
+
+void tick_delay(uint32_t us) {
+ uint32_t ticks_per_us = SystemCoreClock / 1000 / 1000;
+ uint32_t us_between_ticks = SysTick->VAL / ticks_per_us;
+ uint64_t start_ms = ticks_ms;
+ while (us > 1000) {
+ while (ticks_ms == start_ms) {}
+ us -= us_between_ticks;
+ start_ms = ticks_ms;
+ us_between_ticks = 1000;
+ }
+ while (SysTick->VAL > ((us_between_ticks - us) * ticks_per_us)) {}
+}
+
+// us counts down!
+void current_tick(uint64_t* ms, uint32_t* us_until_ms) {
+ uint32_t ticks_per_us = SystemCoreClock / 1000 / 1000;
+ *ms = ticks_ms;
+ *us_until_ms = SysTick->VAL / ticks_per_us;
+}
+
+void wait_until(uint64_t ms, uint32_t us_until_ms) {
+ uint32_t ticks_per_us = SystemCoreClock / 1000 / 1000;
+ while(ticks_ms <= ms && SysTick->VAL / ticks_per_us >= us_until_ms) {}
+}
diff --git a/ports/stm32f4/tick.h b/ports/stm32f4/tick.h
new file mode 100644
index 000000000..e4772fa2c
--- /dev/null
+++ b/ports/stm32f4/tick.h
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_STM32F4_TICK_H
+#define MICROPY_INCLUDED_STM32F4_TICK_H
+
+#include "py/mpconfig.h"
+
+#include <stdint.h>
+
+extern volatile uint64_t ticks_ms;
+
+extern struct timer_descriptor ms_timer;
+
+void tick_init(void);
+
+void tick_delay(uint32_t us);
+
+void current_tick(uint64_t* ms, uint32_t* us_until_ms);
+// Do not call this with interrupts disabled because it may be waiting for
+// ticks_ms to increment.
+void wait_until(uint64_t ms, uint32_t us_until_ms);
+
+#endif // MICROPY_INCLUDED_STM32F4_TICK_H
diff --git a/py/circuitpy_mpconfig.mk b/py/circuitpy_mpconfig.mk
index 47303a73a..14bf8fa0a 100644
--- a/py/circuitpy_mpconfig.mk
+++ b/py/circuitpy_mpconfig.mk
@@ -41,13 +41,26 @@ ifndef CIRCUITPY_FULL_BUILD
endif
endif
+# Setting CIRCUITPY_MINIMAL_BUILD = 1 will disable all features
+# Use for for early stage or highly restricted ports
+ifndef CIRCUITPY_DEFAULT_BUILD
+ ifeq ($(CIRCUITPY_MINIMAL_BUILD),1)
+ CIRCUITPY_FULL_BUILD = 0
+ CIRCUITPY_DEFAULT_BUILD = 0
+ else
+ CIRCUITPY_DEFAULT_BUILD = 1
+ endif
+endif
+
+
+
# All builtin modules are listed below, with default values (0 for off, 1 for on)
# Some are always on, some are always off, and some depend on CIRCUITPY_FULL_BUILD.
#
# *** You can override any of the defaults by defining them in your mpconfigboard.mk.
ifndef CIRCUITPY_ANALOGIO
-CIRCUITPY_ANALOGIO = 1
+CIRCUITPY_ANALOGIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_ANALOGIO=$(CIRCUITPY_ANALOGIO)
@@ -73,17 +86,17 @@ endif
CFLAGS += -DCIRCUITPY_BLEIO=$(CIRCUITPY_BLEIO)
ifndef CIRCUITPY_BOARD
-CIRCUITPY_BOARD = 1
+CIRCUITPY_BOARD = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_BOARD=$(CIRCUITPY_BOARD)
ifndef CIRCUITPY_BUSIO
-CIRCUITPY_BUSIO = 1
+CIRCUITPY_BUSIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_BUSIO=$(CIRCUITPY_BUSIO)
ifndef CIRCUITPY_DIGITALIO
-CIRCUITPY_DIGITALIO = 1
+CIRCUITPY_DIGITALIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_DIGITALIO=$(CIRCUITPY_DIGITALIO)
@@ -113,17 +126,17 @@ endif
CFLAGS += -DCIRCUITPY_I2CSLAVE=$(CIRCUITPY_I2CSLAVE)
ifndef CIRCUITPY_MATH
-CIRCUITPY_MATH = 1
+CIRCUITPY_MATH = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_MATH=$(CIRCUITPY_MATH)
ifndef CIRCUITPY_MICROCONTROLLER
-CIRCUITPY_MICROCONTROLLER = 1
+CIRCUITPY_MICROCONTROLLER = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_MICROCONTROLLER=$(CIRCUITPY_MICROCONTROLLER)
ifndef CIRCUITPY_NEOPIXEL_WRITE
-CIRCUITPY_NEOPIXEL_WRITE = 1
+CIRCUITPY_NEOPIXEL_WRITE = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_NEOPIXEL_WRITE=$(CIRCUITPY_NEOPIXEL_WRITE)
@@ -134,12 +147,12 @@ endif
CFLAGS += -DCIRCUITPY_NETWORK=$(CIRCUITPY_NETWORK)
ifndef CIRCUITPY_NVM
-CIRCUITPY_NVM = 1
+CIRCUITPY_NVM = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_NVM=$(CIRCUITPY_NVM)
ifndef CIRCUITPY_OS
-CIRCUITPY_OS = 1
+CIRCUITPY_OS = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_OS=$(CIRCUITPY_OS)
@@ -149,7 +162,7 @@ endif
CFLAGS += -DCIRCUITPY_PIXELBUF=$(CIRCUITPY_PIXELBUF)
ifndef CIRCUITPY_PULSEIO
-CIRCUITPY_PULSEIO = 1
+CIRCUITPY_PULSEIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_PULSEIO=$(CIRCUITPY_PULSEIO)
@@ -160,17 +173,17 @@ endif
CFLAGS += -DCIRCUITPY_PS2IO=$(CIRCUITPY_PS2IO)
ifndef CIRCUITPY_RANDOM
-CIRCUITPY_RANDOM = 1
+CIRCUITPY_RANDOM = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_RANDOM=$(CIRCUITPY_RANDOM)
ifndef CIRCUITPY_ROTARYIO
-CIRCUITPY_ROTARYIO = 1
+CIRCUITPY_ROTARYIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_ROTARYIO=$(CIRCUITPY_ROTARYIO)
ifndef CIRCUITPY_RTC
-CIRCUITPY_RTC = 1
+CIRCUITPY_RTC = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_RTC=$(CIRCUITPY_RTC)
@@ -189,27 +202,27 @@ endif
CFLAGS += -DCIRCUITPY_STAGE=$(CIRCUITPY_STAGE)
ifndef CIRCUITPY_STORAGE
-CIRCUITPY_STORAGE = 1
+CIRCUITPY_STORAGE = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_STORAGE=$(CIRCUITPY_STORAGE)
ifndef CIRCUITPY_STRUCT
-CIRCUITPY_STRUCT = 1
+CIRCUITPY_STRUCT = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_STRUCT=$(CIRCUITPY_STRUCT)
ifndef CIRCUITPY_SUPERVISOR
-CIRCUITPY_SUPERVISOR = 1
+CIRCUITPY_SUPERVISOR = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_SUPERVISOR=$(CIRCUITPY_SUPERVISOR)
ifndef CIRCUITPY_TIME
-CIRCUITPY_TIME = 1
+CIRCUITPY_TIME = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_TIME=$(CIRCUITPY_TIME)
ifndef CIRCUITPY_TOUCHIO
-CIRCUITPY_TOUCHIO = 1
+CIRCUITPY_TOUCHIO = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_TOUCHIO=$(CIRCUITPY_TOUCHIO)
@@ -220,12 +233,12 @@ endif
CFLAGS += -DCIRCUITPY_UHEAP=$(CIRCUITPY_UHEAP)
ifndef CIRCUITPY_USB_HID
-CIRCUITPY_USB_HID = 1
+CIRCUITPY_USB_HID = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_USB_HID=$(CIRCUITPY_USB_HID)
ifndef CIRCUITPY_USB_MIDI
-CIRCUITPY_USB_MIDI = 1
+CIRCUITPY_USB_MIDI = $(CIRCUITPY_DEFAULT_BUILD)
endif
CFLAGS += -DCIRCUITPY_USB_MIDI=$(CIRCUITPY_USB_MIDI)
diff --git a/shared-module/board/__init__.c b/shared-module/board/__init__.c
index be8502bc0..5a1dead78 100644
--- a/shared-module/board/__init__.c
+++ b/shared-module/board/__init__.c
@@ -24,16 +24,18 @@
* THE SOFTWARE.
*/
-#include "shared-bindings/busio/I2C.h"
-#include "shared-bindings/busio/SPI.h"
-#include "shared-bindings/busio/UART.h"
-
#include "shared-bindings/microcontroller/Pin.h"
#include "supervisor/shared/translate.h"
#include "mpconfigboard.h"
#include "py/runtime.h"
-#ifdef CIRCUITPY_DISPLAYIO
+#if CIRCUITPY_BUSIO
+#include "shared-bindings/busio/I2C.h"
+#include "shared-bindings/busio/SPI.h"
+#include "shared-bindings/busio/UART.h"
+#endif
+
+#if CIRCUITPY_DISPLAYIO
#include "shared-module/displayio/__init__.h"
#endif
diff --git a/supervisor/shared/status_leds.c b/supervisor/shared/status_leds.c
index d99853ceb..672242a96 100644
--- a/supervisor/shared/status_leds.c
+++ b/supervisor/shared/status_leds.c
@@ -26,8 +26,10 @@
#include "supervisor/shared/status_leds.h"
+#if CIRCUITPY_DIGITALIO
#include "common-hal/digitalio/DigitalInOut.h"
#include "shared-bindings/digitalio/DigitalInOut.h"
+#endif
#ifdef MICROPY_HW_LED_RX
digitalio_digitalinout_obj_t rx_led;