Adding SparkFun nRF52840 Mini board support.
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48
ports/nrf/boards/sparkfun_nrf52840_mini/README.md
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48
ports/nrf/boards/sparkfun_nrf52840_mini/README.md
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# SparkFun Pro nRF52840 Mini Breakout
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The [SparkFun Pro nRF52840 Mini](https://www.sparkfun.com/products/15025) small breakout board for Raytac's MDBT50Q-P1M module, which features an nRF52840. It breaks out as many pins as it can in an Arduino Pro Mini footprint. Also included on the board are a qwiic (I<sup>2</sup>C) connector, LiPo battery charger, and on/off switch.
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Note: the SparkFun Pro nRF52840 Mini Breakout does not include a QSPI external flash. Any Python code will need to be stored on the internal flash filesystem.
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## CircuitPython Pin Defs
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CircuitPython pin definitions try to follow those of the [Arduino Pro Mini](https://www.sparkfun.com/products/11113), which the footprint is based on.
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This can be somewhat confusing, especially around the analog pins. Here's a quick pin-map:
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<table>
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<tr><th>Board pin label</th><th>Digital Pin Reference</th><th>Additional Pin Capabilities</th><th>Pin/Port Reference</th></tr>
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<tr><td>17</td><td>D1</td><td>TX</td><td>P0_17</td></tr>
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<tr><td>15</td><td>D0</td><td>RX</td><td>P0_15</td></tr>
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<tr><td>8</td><td></td><td>SDA</td><td>P0_08</td></tr>
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<tr><td>11</td><td></td><td>SCL</td><td>P0_11</td></tr>
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<tr><td>19</td><td>D3</td><td></td><td>P0_19</td></tr>
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<tr><td>20</td><td>D4</td><td></td><td>P0_20</td></tr>
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<tr><td>21</td><td>D5</td><td></td><td>P0_21</td></tr>
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<tr><td>22</td><td>D6</td><td></td><td>P0_22</td></tr>
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<tr><td>23</td><td>D7</td><td></td><td>P0_23</td></tr>
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<tr><td>9</td><td>D8</td><td></td><td>P0_09</td></tr>
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<tr><td>10</td><td>D9</td><td></td><td>P0_10</td></tr>
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<tr><td>2</td><td>D10</td><td>A0</td><td>P0_02</td></tr>
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<tr><td>3</td><td>D11</td><td>MOSI, A1</td><td>P0_03</td></tr>
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<tr><td>31</td><td>D12</td><td>MISO, A7</td><td>P0_31</td></tr>
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<tr><td>30</td><td>D13</td><td>SCK, A6</td><td>P0_31</td></tr>
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<tr><td>29</td><td></td><td>A5</td><td>P0_29</td></tr>
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<tr><td>28</td><td></td><td>A4</td><td>P0_28</td></tr>
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<tr><td>5</td><td></td><td>A3</td><td>P0_05</td></tr>
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<tr><td>4</td><td></td><td>A2</td><td>P0_04</td></tr>
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</table>
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If a pin isn't defined as D0, D1, etc., standard port/pin references should work -- e.g. `P0_17` is pin 17, `P0_02` is pin 2, etc.
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## Bootloader Notes
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The nRF52840 Mini ships with a slightly modified (i.e pin defs and USB defs) version of the Adafruit nRF52 bootloader, which supports UF2 and CDC bootloading.
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## Hardware Reference
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The nRF52840 Mini hardware layout is open source:
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* [Schematic](https://cdn.sparkfun.com/assets/learn_tutorials/8/2/0/nrf52840-breakout-mdbt50q-v10.pdf)
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* [Eagle Files](https://cdn.sparkfun.com/assets/learn_tutorials/8/2/0/nrf52840-breakout-mdbt50q-v10.zip)
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* [Hookup Guide](https://learn.sparkfun.com/tutorials/sparkfun-pro-nrf52840-mini-hookup-guide)
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38
ports/nrf/boards/sparkfun_nrf52840_mini/board.c
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ports/nrf/boards/sparkfun_nrf52840_mini/board.c
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "boards/board.h"
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void board_init(void) {
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}
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bool board_requests_safe_mode(void) {
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return false;
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}
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void reset_board(void) {
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}
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68
ports/nrf/boards/sparkfun_nrf52840_mini/mpconfigboard.h
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68
ports/nrf/boards/sparkfun_nrf52840_mini/mpconfigboard.h
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Glenn Ruben Bakke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "nrfx/hal/nrf_gpio.h"
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#define MICROPY_HW_BOARD_NAME "SparkFun Pro nRF52840 Mini"
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#define MICROPY_HW_MCU_NAME "nRF52840"
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#define MICROPY_PY_SYS_PLATFORM "SFE_NRF52840_Mini"
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#define PORT_HEAP_SIZE (128 * 1024)
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#define CIRCUITPY_AUTORELOAD_DELAY_MS 500
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#define DEFAULT_I2C_BUS_SCL (&pin_P0_11)
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#define DEFAULT_I2C_BUS_SDA (&pin_P0_08)
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#define DEFAULT_SPI_BUS_SCK (&pin_P0_30)
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#define DEFAULT_SPI_BUS_MOSI (&pin_P0_03)
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#define DEFAULT_SPI_BUS_MISO (&pin_P0_31)
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#define DEFAULT_UART_BUS_RX (&pin_P0_15)
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#define DEFAULT_UART_BUS_TX (&pin_P0_17)
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/* Note: Flash chip is not provided on SparkFun nRF52840 Mini.
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* Leaving this as a reminder for future/similar versions of the board. */
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// Flash operation mode is determined by MICROPY_QSPI_DATAn pin configuration.
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// A pin config is valid if it is defined and its value is not 0xFF.
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// Quad mode: If all DATA0 --> DATA3 are valid
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// Dual mode: If DATA0 and DATA1 are valid while either DATA2 and/or DATA3 are invalid
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// Single mode: If only DATA0 is valid
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/*#ifdef QSPI_FLASH_FILESYSTEM
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#define MICROPY_QSPI_DATA0 NRF_GPIO_PIN_MAP(0, 20)
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#define MICROPY_QSPI_DATA1 NRF_GPIO_PIN_MAP(0, 21)
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#define MICROPY_QSPI_DATA2 NRF_GPIO_PIN_MAP(0, 22)
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#define MICROPY_QSPI_DATA3 NRF_GPIO_PIN_MAP(0, 23)
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#define MICROPY_QSPI_SCK NRF_GPIO_PIN_MAP(0, 19)
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#define MICROPY_QSPI_CS NRF_GPIO_PIN_MAP(0, 17)
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#endif
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#ifdef SPI_FLASH_FILESYSTEM
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#define SPI_FLASH_MOSI_PIN &pin_P0_20
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#define SPI_FLASH_MISO_PIN &pin_P0_21
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#define SPI_FLASH_SCK_PIN &pin_P0_19
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#define SPI_FLASH_CS_PIN &pin_P0_17
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#endif*/
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25
ports/nrf/boards/sparkfun_nrf52840_mini/mpconfigboard.mk
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25
ports/nrf/boards/sparkfun_nrf52840_mini/mpconfigboard.mk
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USB_VID = 0x1B4F
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USB_PID = 0x5289
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USB_PRODUCT = "SFE_nRF52840_Mini"
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USB_MANUFACTURER = "SparkFun Electronics"
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MCU_SERIES = m4
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MCU_VARIANT = nrf52
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MCU_SUB_VARIANT = nrf52840
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MCU_CHIP = nrf52840
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SD ?= s140
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SOFTDEV_VERSION ?= 6.1.0
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BOOT_SETTING_ADDR = 0xFF000
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ifeq ($(SD),)
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LD_FILE = boards/nrf52840_1M_256k.ld
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else
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LD_FILE = boards/adafruit_$(MCU_SUB_VARIANT)_$(SD_LOWER)_v$(firstword $(subst ., ,$(SOFTDEV_VERSION))).ld
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endif
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NRF_DEFINES += -DNRF52840_XXAA -DNRF52840
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QSPI_FLASH_FILESYSTEM = 0
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EXTERNAL_FLASH_DEVICE_COUNT = 0
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EXTERNAL_FLASH_DEVICES =
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117
ports/nrf/boards/sparkfun_nrf52840_mini/pins.c
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ports/nrf/boards/sparkfun_nrf52840_mini/pins.c
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#include "shared-bindings/board/__init__.h"
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#include "board_busses.h"
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STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_P0_00), MP_ROM_PTR(&pin_P0_00) },
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{ MP_ROM_QSTR(MP_QSTR_P0_01), MP_ROM_PTR(&pin_P0_01) },
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{ MP_ROM_QSTR(MP_QSTR_P0_02), MP_ROM_PTR(&pin_P0_02) },
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{ MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_P0_02) },
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{ MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_P0_02) },
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{ MP_ROM_QSTR(MP_QSTR_P0_03), MP_ROM_PTR(&pin_P0_03) },
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{ MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_P0_03) },
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{ MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_P0_03) },
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{ MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P0_03) },
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{ MP_ROM_QSTR(MP_QSTR_P0_04), MP_ROM_PTR(&pin_P0_04) },
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{ MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_P0_04) },
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{ MP_ROM_QSTR(MP_QSTR_P0_05), MP_ROM_PTR(&pin_P0_05) },
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{ MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_P0_05) },
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{ MP_ROM_QSTR(MP_QSTR_P0_06), MP_ROM_PTR(&pin_P0_06) },
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{ MP_ROM_QSTR(MP_QSTR_P0_07), MP_ROM_PTR(&pin_P0_07) },
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{ MP_ROM_QSTR(MP_QSTR_LED1), MP_ROM_PTR(&pin_P0_07) },
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{ MP_ROM_QSTR(MP_QSTR_P0_08), MP_ROM_PTR(&pin_P0_08) },
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{ MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_08) },
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{ MP_ROM_QSTR(MP_QSTR_P0_09), MP_ROM_PTR(&pin_P0_09) },
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{ MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_P0_09) },
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{ MP_ROM_QSTR(MP_QSTR_P0_10), MP_ROM_PTR(&pin_P0_10) },
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{ MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_P0_10) },
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{ MP_ROM_QSTR(MP_QSTR_P0_11), MP_ROM_PTR(&pin_P0_11) },
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{ MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_11) },
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{ MP_ROM_QSTR(MP_QSTR_P0_12), MP_ROM_PTR(&pin_P0_12) },
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{ MP_ROM_QSTR(MP_QSTR_P0_13), MP_ROM_PTR(&pin_P0_13) },
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{ MP_ROM_QSTR(MP_QSTR_BUTTON1), MP_ROM_PTR(&pin_P0_13) },
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{ MP_ROM_QSTR(MP_QSTR_P0_14), MP_ROM_PTR(&pin_P0_14) },
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{ MP_ROM_QSTR(MP_QSTR_P0_15), MP_ROM_PTR(&pin_P0_15) },
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{ MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_P0_15) },
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{ MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_P1_15) },
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{ MP_ROM_QSTR(MP_QSTR_P0_16), MP_ROM_PTR(&pin_P0_16) },
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{ MP_ROM_QSTR(MP_QSTR_P0_17), MP_ROM_PTR(&pin_P0_17) },
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{ MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_P0_17) },
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{ MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_P0_17) },
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// RESET { MP_ROM_QSTR(MP_QSTR_P0_18), MP_ROM_PTR(&pin_P0_18) },
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{ MP_ROM_QSTR(MP_QSTR_P0_19), MP_ROM_PTR(&pin_P0_19) },
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{ MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_P0_19) },
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{ MP_ROM_QSTR(MP_QSTR_P0_20), MP_ROM_PTR(&pin_P0_20) },
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{ MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_P0_20) },
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{ MP_ROM_QSTR(MP_QSTR_P0_21), MP_ROM_PTR(&pin_P0_21) },
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{ MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_P0_21) },
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{ MP_ROM_QSTR(MP_QSTR_P0_22), MP_ROM_PTR(&pin_P0_22) },
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{ MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_P0_22) },
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{ MP_ROM_QSTR(MP_QSTR_P0_23), MP_ROM_PTR(&pin_P0_23) },
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{ MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_P0_23) },
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{ MP_ROM_QSTR(MP_QSTR_P0_24), MP_ROM_PTR(&pin_P0_24) },
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{ MP_ROM_QSTR(MP_QSTR_P0_25), MP_ROM_PTR(&pin_P0_25) },
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{ MP_ROM_QSTR(MP_QSTR_P0_26), MP_ROM_PTR(&pin_P0_26) },
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{ MP_ROM_QSTR(MP_QSTR_P0_27), MP_ROM_PTR(&pin_P0_27) },
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{ MP_ROM_QSTR(MP_QSTR_P0_28), MP_ROM_PTR(&pin_P0_28) },
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{ MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_P0_28) },
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{ MP_ROM_QSTR(MP_QSTR_P0_29), MP_ROM_PTR(&pin_P0_29) },
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{ MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_P0_29) },
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{ MP_ROM_QSTR(MP_QSTR_P0_30), MP_ROM_PTR(&pin_P0_30) },
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{ MP_ROM_QSTR(MP_QSTR_A6), MP_ROM_PTR(&pin_P0_30) },
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{ MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_P0_30) },
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{ MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_P0_30) },
|
||||||
|
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P0_31), MP_ROM_PTR(&pin_P0_31) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_P0_31) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P0_31) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_P0_31) },
|
||||||
|
|
||||||
|
// Nothing connected to anything on P1 port
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_00), MP_ROM_PTR(&pin_P1_00) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_01), MP_ROM_PTR(&pin_P1_01) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_02), MP_ROM_PTR(&pin_P1_02) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_03), MP_ROM_PTR(&pin_P1_03) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_04), MP_ROM_PTR(&pin_P1_04) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_05), MP_ROM_PTR(&pin_P1_05) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_06), MP_ROM_PTR(&pin_P1_06) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_07), MP_ROM_PTR(&pin_P1_07) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_08), MP_ROM_PTR(&pin_P1_08) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_09), MP_ROM_PTR(&pin_P1_09) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_10), MP_ROM_PTR(&pin_P1_10) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_11), MP_ROM_PTR(&pin_P1_11) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_12), MP_ROM_PTR(&pin_P1_12) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_13), MP_ROM_PTR(&pin_P1_13) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_14), MP_ROM_PTR(&pin_P1_14) },
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_P1_15), MP_ROM_PTR(&pin_P1_15) },
|
||||||
|
|
||||||
|
{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
|
||||||
|
};
|
||||||
|
|
||||||
|
MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
|
||||||
Loading…
Reference in New Issue
Block a user