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Add support for Serpente boards
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‎.github/workflows/build.yml‎

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- "robohatmm1_m0"
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- "robohatmm1_m4"
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- "sam32"
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- "serpente"
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- "snekboard"
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- "sparkfun_lumidrive"
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- "sparkfun_nrf52840_mini"

‎ports/atmel-samd/boards/serpente/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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}

‎ports/atmel-samd/boards/serpente/mpconfigboard.h‎

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#define MICROPY_HW_BOARD_NAME "Serpente"
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#define MICROPY_HW_MCU_NAME "samd21e18"
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#define MICROPY_HW_LED_STATUS (&pin_PA23)
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#define SPI_FLASH_MOSI_PIN &pin_PA16
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#define SPI_FLASH_MISO_PIN &pin_PA18
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#define SPI_FLASH_SCK_PIN &pin_PA17
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#define SPI_FLASH_CS_PIN &pin_PA15
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// These are pins not to reset.
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#define MICROPY_PORT_A (PORT_PA00 | PORT_PA01)
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#define MICROPY_PORT_B (0)
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#define MICROPY_PORT_C (0)
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// If you change this, then make sure to update the linker scripts as well to
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// make sure you don't overwrite code.
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#define CIRCUITPY_INTERNAL_NVM_SIZE 256
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#define BOARD_FLASH_SIZE (0x00040000 - 0x2000 - CIRCUITPY_INTERNAL_NVM_SIZE)
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#define DEFAULT_I2C_BUS_SCL (&pin_PA09)
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#define DEFAULT_I2C_BUS_SDA (&pin_PA08)
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#define DEFAULT_SPI_BUS_SCK (&pin_PA05)
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#define DEFAULT_SPI_BUS_MOSI (&pin_PA04)
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#define DEFAULT_SPI_BUS_MISO (&pin_PA06)
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#define DEFAULT_UART_BUS_RX (&pin_PA09)
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#define DEFAULT_UART_BUS_TX (&pin_PA08)
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// USB is always used internally so skip the pin objects for it.
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#define IGNORE_PIN_PA24 1
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#define IGNORE_PIN_PA25 1
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// Not connected
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#define IGNORE_PIN_PA13 1
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#define IGNORE_PIN_PA28 1
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‎ports/atmel-samd/boards/serpente/mpconfigboard.mk‎

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LD_FILE = boards/samd21x18-bootloader-external-flash-crystalless.ld
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USB_VID = 0x239A
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USB_PID = 0x8012
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USB_PRODUCT = "Serpente"
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USB_MANUFACTURER = "arturo182"
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CHIP_VARIANT = SAMD21E18A
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CHIP_FAMILY = samd21
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SPI_FLASH_FILESYSTEM = 1
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EXTERNAL_FLASH_DEVICE_COUNT = 1
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EXTERNAL_FLASH_DEVICES = GD25Q32C
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LONGINT_IMPL = NONE
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ifneq ($(TRANSLATION), en_US)
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CIRCUITPY_SMALL_BUILD = 1
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endif

‎ports/atmel-samd/boards/serpente/pins.c‎

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#include "shared-bindings/board/__init__.h"
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STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_PA04) },
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{ MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_PA05) },
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{ MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_PA06) },
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{ MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_PA07) },
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{ MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_PA08) },
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{ MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_PA09) },
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{ MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_PA04) },
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{ MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_PA05) },
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{ MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_PA06) },
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{ MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_PA07) },
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{ MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_PA08) },
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{ MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_PA09) },
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{ MP_ROM_QSTR(MP_QSTR_LED_G), MP_ROM_PTR(&pin_PA19) },
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{ MP_ROM_QSTR(MP_QSTR_LED_R), MP_ROM_PTR(&pin_PA22) },
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{ MP_ROM_QSTR(MP_QSTR_LED_B), MP_ROM_PTR(&pin_PA23) },
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{ MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_PA04) },
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{ MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_PA06) },
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{ MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_PA05) },
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{ MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_PA09) },
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{ MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_PA08) },
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{ MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_PA09) },
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{ MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_PA08) },
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{ MP_ROM_QSTR(MP_QSTR_RX2), MP_ROM_PTR(&pin_PA05) },
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{ MP_ROM_QSTR(MP_QSTR_TX2), MP_ROM_PTR(&pin_PA04) },
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
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};
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MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);
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