Supervisor REPL support for ports/nrf/boards/feather52

10 files changed, 522 insertions, 0 deletions

diff --git a/ports/nrf/common-hal/board/__init__.c b/ports/nrf/common-hal/board/__init__.c
new file mode 100644
index 000000000..634760335
--- /dev/null
+++ b/ports/nrf/common-hal/board/__init__.c
@@ -0,0 +1,34 @@
+/*
+ * 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 <string.h>
+
+#include "py/runtime.h"
+#include "py/mphal.h"
+#include "common-hal/microcontroller/Pin.h"
+
+// Pins aren't actually defined here. They are in the board specific directory
+// such as boards/arduino_zero/pins.c.
diff --git a/ports/nrf/common-hal/digitalio/DigitalInOut.c b/ports/nrf/common-hal/digitalio/DigitalInOut.c
new file mode 100644
index 000000000..a183faaa7
--- /dev/null
+++ b/ports/nrf/common-hal/digitalio/DigitalInOut.c
@@ -0,0 +1,169 @@
+/*
+ * 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 <stdint.h>
+#include <string.h>
+
+#include "py/runtime.h"
+#include "py/mphal.h"
+
+#include "hal/hal_gpio.h"
+
+#include "common-hal/microcontroller/Pin.h"
+#include "shared-bindings/digitalio/DigitalInOut.h"
+
+digitalinout_result_t common_hal_digitalio_digitalinout_construct(
+        digitalio_digitalinout_obj_t* self, const mcu_pin_obj_t* pin) {
+    self->pin = pin;
+    hal_gpio_cfg_pin(pin->port, pin->pin, HAL_GPIO_MODE_INPUT, HAL_GPIO_PULL_DISABLED);
+    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(self->pin->pin);
+    self->pin = mp_const_none;
+}
+
+void common_hal_digitalio_digitalinout_switch_to_input(
+        digitalio_digitalinout_obj_t* self, enum digitalio_pull_t pull) {
+    self->output = false;
+
+    hal_gpio_cfg_pin(self->pin->port, self->pin->pin, HAL_GPIO_MODE_INPUT, HAL_GPIO_PULL_DISABLED);
+    common_hal_digitalio_digitalinout_set_pull(self, pull);
+}
+
+void common_hal_digitalio_digitalinout_switch_to_output(
+        digitalio_digitalinout_obj_t* self, bool value,
+        enum digitalio_drive_mode_t drive_mode) {
+    const uint8_t pin = self->pin->pin;
+
+    self->output = true;
+    self->open_drain = (drive_mode == DRIVE_MODE_OPEN_DRAIN);
+
+    hal_gpio_cfg_pin(self->pin->port, pin, HAL_GPIO_MODE_OUTPUT, HAL_GPIO_PULL_DISABLED);
+    common_hal_digitalio_digitalinout_set_value(self, value);
+}
+
+enum digitalio_direction_t common_hal_digitalio_digitalinout_get_direction(
+        digitalio_digitalinout_obj_t* self) {
+    return self->output? DIRECTION_OUTPUT : DIRECTION_INPUT;
+}
+
+void common_hal_digitalio_digitalinout_set_value(
+        digitalio_digitalinout_obj_t* self, bool value) {
+    if (value) {
+        if (self->open_drain) {
+            hal_gpio_dir_set(self->pin->port, self->pin->pin, HAL_GPIO_MODE_INPUT);
+        } else {
+            hal_gpio_pin_set(self->pin->port, self->pin->pin);
+            hal_gpio_dir_set(self->pin->port, self->pin->pin, HAL_GPIO_MODE_OUTPUT);
+        }
+    } else {
+        hal_gpio_pin_clear(self->pin->port, self->pin->pin);
+        hal_gpio_dir_set(self->pin->port, self->pin->pin, HAL_GPIO_MODE_OUTPUT);
+    }
+}
+
+bool common_hal_digitalio_digitalinout_get_value(
+        digitalio_digitalinout_obj_t* self) {
+    const uint8_t pin = self->pin->pin;
+    if (!self->output) {
+        return hal_gpio_pin_read(self->pin);
+    } else {
+        if (self->open_drain && hal_gpio_dir_get(self->pin->port, self->pin->pin) == HAL_GPIO_MODE_INPUT) {
+            return true;
+        } else {
+            return (GPIO_BASE(self->pin->port)->OUT >> pin) & 1;
+        }
+    }
+}
+
+void common_hal_digitalio_digitalinout_set_drive_mode(
+        digitalio_digitalinout_obj_t* self,
+        enum digitalio_drive_mode_t drive_mode) {
+    bool value = common_hal_digitalio_digitalinout_get_value(self);
+    self->open_drain = drive_mode == DRIVE_MODE_OPEN_DRAIN;
+    // True is implemented differently between modes so reset the value to make
+    // sure its correct for the new mode.
+    if (value) {
+        common_hal_digitalio_digitalinout_set_value(self, value);
+    }
+}
+
+enum digitalio_drive_mode_t common_hal_digitalio_digitalinout_get_drive_mode(
+        digitalio_digitalinout_obj_t* self) {
+    if (self->open_drain) {
+        return DRIVE_MODE_OPEN_DRAIN;
+    } else {
+        return DRIVE_MODE_PUSH_PULL;
+    }
+}
+
+void common_hal_digitalio_digitalinout_set_pull(
+        digitalio_digitalinout_obj_t* self, enum digitalio_pull_t pull) {
+    hal_gpio_pull_t asf_pull = HAL_GPIO_PULL_DISABLED;
+    switch (pull) {
+        case PULL_UP:
+            asf_pull = HAL_GPIO_PULL_UP;
+            break;
+        case PULL_DOWN:
+            asf_pull = HAL_GPIO_PULL_DOWN;
+            break;
+        case PULL_NONE:
+        default:
+            break;
+    }
+    hal_gpio_pull_set(self->pin->port, self->pin->pin, asf_pull);
+}
+
+enum digitalio_pull_t common_hal_digitalio_digitalinout_get_pull(
+        digitalio_digitalinout_obj_t* self) {
+    uint32_t pin = self->pin->pin;
+    if (self->output) {
+        mp_raise_AttributeError("Cannot get pull while in output mode");
+        return PULL_NONE;
+    } else {
+        hal_gpio_pull_t pull = hal_gpio_pull_get(self->pin->port, pin);
+
+        switch(pull)
+        {
+          case HAL_GPIO_PULL_UP:
+          return PULL_UP;
+
+          case HAL_GPIO_PULL_DOWN:
+          return PULL_DOWN;
+
+          default: return PULL_NONE;
+        }
+    }
+}
diff --git a/ports/nrf/common-hal/digitalio/DigitalInOut.h b/ports/nrf/common-hal/digitalio/DigitalInOut.h
new file mode 100644
index 000000000..8089d8bac
--- /dev/null
+++ b/ports/nrf/common-hal/digitalio/DigitalInOut.h
@@ -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.
+ */
+
+#ifndef MICROPY_INCLUDED_NRF_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+#define MICROPY_INCLUDED_NRF_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    const mcu_pin_obj_t * pin;
+    bool output;
+    bool open_drain;
+} digitalio_digitalinout_obj_t;
+
+#endif // MICROPY_INCLUDED_NRF_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
diff --git a/ports/nrf/common-hal/digitalio/__init__.c b/ports/nrf/common-hal/digitalio/__init__.c
new file mode 100644
index 000000000..20fad4595
--- /dev/null
+++ b/ports/nrf/common-hal/digitalio/__init__.c
@@ -0,0 +1 @@
+// No digitalio module functions.
diff --git a/ports/nrf/common-hal/microcontroller/Pin.c b/ports/nrf/common-hal/microcontroller/Pin.c
new file mode 100644
index 000000000..ee07ff09a
--- /dev/null
+++ b/ports/nrf/common-hal/microcontroller/Pin.c
@@ -0,0 +1,75 @@
+/*
+ * 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 "common-hal/microcontroller/Pin.h"
+#include "shared-bindings/microcontroller/Pin.h"
+
+#include "py/mphal.h"
+
+#if 0
+
+extern volatile bool adc_in_use;
+
+bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t* pin) {
+    if (pin == &pin_TOUT) {
+        return !adc_in_use;
+    }
+    if (pin->gpio_number == NO_GPIO || pin->gpio_number == SPECIAL_CASE) {
+        return false;
+    }
+    return (READ_PERI_REG(pin->peripheral) &
+                (PERIPHS_IO_MUX_FUNC<<PERIPHS_IO_MUX_FUNC_S)) == 0 &&
+             (GPIO_REG_READ(GPIO_ENABLE_ADDRESS) & (1 << pin->gpio_number)) == 0 &&
+             (READ_PERI_REG(pin->peripheral) & PERIPHS_IO_MUX_PULLUP) == 0;
+}
+
+void reset_pins(void) {
+    for (int i = 0; i < 17; i++) {
+        // 5 is RXD, 6 is TXD
+        if ((i > 4 && i < 13) || i == 12) {
+            continue;
+        }
+        uint32_t peripheral = PERIPHS_IO_MUX + i * 4;
+        PIN_FUNC_SELECT(peripheral, 0);
+        PIN_PULLUP_DIS(peripheral);
+        // Disable the pin.
+        gpio_output_set(0x0, 0x0, 0x0, 1 << i);
+    }
+}
+#endif
+
+bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t* pin) {
+  return true;
+}
+
+void reset_all_pins(void) {
+}
+
+void reset_pin(uint8_t pin) {
+
+}
+
+
diff --git a/ports/nrf/common-hal/microcontroller/Pin.h b/ports/nrf/common-hal/microcontroller/Pin.h
new file mode 100644
index 000000000..d7994bc0c
--- /dev/null
+++ b/ports/nrf/common-hal/microcontroller/Pin.h
@@ -0,0 +1,40 @@
+/*
+ * 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_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H
+#define MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H
+
+#include "py/mphal.h"
+#include "modules/machine/pin.h"
+
+//typedef pin_obj_t mcu_pin_obj_t;
+#define mcu_pin_obj_t pin_obj_t
+void reset_all_pins(void);
+void reset_pin(uint8_t pin);
+//void claim_pin(const mcu_pin_obj_t* pin);
+
+
+#endif // MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H
diff --git a/ports/nrf/common-hal/microcontroller/Processor.c b/ports/nrf/common-hal/microcontroller/Processor.c
new file mode 100644
index 000000000..4e74a4909
--- /dev/null
+++ b/ports/nrf/common-hal/microcontroller/Processor.c
@@ -0,0 +1,37 @@
+/*
+ * 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"
+
+// TODO port common_hal_mcu_processor
+float common_hal_mcu_processor_get_temperature(void) {
+    return 0;
+}
+
+uint32_t common_hal_mcu_processor_get_frequency(void) {
+    return 64000000ul;
+}
+
diff --git a/ports/nrf/common-hal/microcontroller/Processor.h b/ports/nrf/common-hal/microcontroller/Processor.h
new file mode 100644
index 000000000..00d95ad4f
--- /dev/null
+++ b/ports/nrf/common-hal/microcontroller/Processor.h
@@ -0,0 +1,37 @@
+/*
+ * 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_NRF_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+#define MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    // Stores no state currently.
+} mcu_processor_obj_t;
+
+#endif // MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
diff --git a/ports/nrf/common-hal/microcontroller/__init__.c b/ports/nrf/common-hal/microcontroller/__init__.c
new file mode 100644
index 000000000..ddf0d252c
--- /dev/null
+++ b/ports/nrf/common-hal/microcontroller/__init__.c
@@ -0,0 +1,51 @@
+/*
+ * 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 "common-hal/microcontroller/Pin.h"
+#include "common-hal/microcontroller/Processor.h"
+
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/microcontroller/Processor.h"
+
+// TODO porting common_hal_mcu
+void common_hal_mcu_delay_us(uint32_t delay) {
+//    os_delay_us(delay);
+}
+
+void common_hal_mcu_disable_interrupts() {
+}
+
+void common_hal_mcu_enable_interrupts() {
+}
+
+// The singleton microcontroller.Processor object, returned by microcontroller.cpu
+// It currently only has properties, and no state.
+mcu_processor_obj_t common_hal_mcu_processor_obj = {
+    .base = {
+        .type = &mcu_processor_type,
+    },
+};
+
diff --git a/ports/nrf/common-hal/time/__init__.c b/ports/nrf/common-hal/time/__init__.c
new file mode 100644
index 000000000..dc29e2d6d
--- /dev/null
+++ b/ports/nrf/common-hal/time/__init__.c
@@ -0,0 +1,38 @@
+/*
+ * 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 "shared-bindings/time/__init__.h"
+#include "boards/board.h"
+
+inline uint64_t common_hal_time_monotonic() {
+  return ticks_ms;
+}
+
+void common_hal_time_delay_ms(uint32_t delay) {
+    mp_hal_delay_ms(delay);
+}