circuitpython/ports/espressif/boards/adafruit_feather_esp32s2/board.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 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/board.h"
#include "mpconfigboard.h"
#include "shared-bindings/microcontroller/Pin.h"
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#include "components/driver/include/driver/gpio.h"
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#include "components/hal/include/hal/gpio_hal.h"
#include "common-hal/microcontroller/Pin.h"
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void board_init(void) {
reset_board();
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}
void reset_board(void) {
// Turn on I2C power by default.
// set pin to input to find 'rest state'
gpio_set_direction(7, GPIO_MODE_DEF_INPUT);
// wait 1 millis for pull to activate
mp_hal_delay_ms(1);
// read rest state (off)
bool restlevel = gpio_get_level(7);
gpio_set_direction(7, GPIO_MODE_DEF_OUTPUT);
// flip it!
gpio_set_level(7, !restlevel);
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}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.