Add Arduino Nano 33 IoT support

4 files changed, 112 insertions, 0 deletions

diff --git a/ports/atmel-samd/boards/arduino_nano_33_iot/board.c b/ports/atmel-samd/boards/arduino_nano_33_iot/board.c
new file mode 100644
index 000000000..770bc8259
--- /dev/null
+++ b/ports/atmel-samd/boards/arduino_nano_33_iot/board.c
@@ -0,0 +1,40 @@
+/*
+ * 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"
+#include "mpconfigboard.h"
+#include "hal/include/hal_gpio.h"
+
+void board_init(void)
+{
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}
diff --git a/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.h b/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.h
new file mode 100644
index 000000000..847e1a679
--- /dev/null
+++ b/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.h
@@ -0,0 +1,22 @@
+#define MICROPY_HW_BOARD_NAME "Arduino Nano 33 IoT"
+#define MICROPY_HW_MCU_NAME "samd21g18"
+
+#define MICROPY_HW_LED_STATUS   (&pin_PA17)
+
+#define MICROPY_PORT_A        (0)
+#define MICROPY_PORT_B        (0)
+#define MICROPY_PORT_C        (0)
+
+#define DEFAULT_I2C_BUS_SCL (&pin_PB09)
+#define DEFAULT_I2C_BUS_SDA (&pin_PB08)
+
+#define DEFAULT_SPI_BUS_SCK (&pin_PA17)
+#define DEFAULT_SPI_BUS_MOSI (&pin_PA16)
+#define DEFAULT_SPI_BUS_MISO (&pin_PA19)
+
+#define DEFAULT_UART_BUS_RX (&pin_PB23)
+#define DEFAULT_UART_BUS_TX (&pin_PB22)
+
+// USB is always used internally so skip the pin objects for it.
+#define IGNORE_PIN_PA24     1
+#define IGNORE_PIN_PA25     1
diff --git a/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.mk b/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.mk
new file mode 100644
index 000000000..8a29b0ace
--- /dev/null
+++ b/ports/atmel-samd/boards/arduino_nano_33_iot/mpconfigboard.mk
@@ -0,0 +1,13 @@
+USB_VID = 0x2341
+USB_PID = 0x8057
+USB_PRODUCT = "Arduino Nano 33 IoT"
+USB_MANUFACTURER = "Arduino"
+
+CHIP_VARIANT = SAMD21G18A
+CHIP_FAMILY = samd21
+
+INTERNAL_FLASH_FILESYSTEM = 1
+LONGINT_IMPL = NONE
+CIRCUITPY_SMALL_BUILD = 1
+
+SUPEROPT_GC = 0
diff --git a/ports/atmel-samd/boards/arduino_nano_33_iot/pins.c b/ports/atmel-samd/boards/arduino_nano_33_iot/pins.c
new file mode 100644
index 000000000..3478db9df
--- /dev/null
+++ b/ports/atmel-samd/boards/arduino_nano_33_iot/pins.c
@@ -0,0 +1,37 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_PA02) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_PB02) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_PA11) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_PA10) },
+    { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_PB08) },
+    { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_PB09) },
+    { MP_ROM_QSTR(MP_QSTR_A6), MP_ROM_PTR(&pin_PA09) },
+    { MP_ROM_QSTR(MP_QSTR_A7), MP_ROM_PTR(&pin_PB03) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_PB23) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_PB23) },
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_PB22) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_PB22) },
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_PB10) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_PB11) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_PA07) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_PA05) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_PA04) },
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_PA06) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_PA18) },
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_PA20) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_PA21) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_PA16) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_PA19) },
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_PA17) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_PB08) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_PB09) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_PA17) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_PA16) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_PA19) },
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+    { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);