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79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
/*
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* Copyright (C) 2025 David Picard
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#pragma once
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/**
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* @ingroup boards_seeedstudio-xiao-esp32c3
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* @brief Board definitions for the Seeed Studio Xiao ESP32-C3 board
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* @{
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*
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* @file board.h
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* @author David Picard
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*/
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#include <stdint.h>
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#if MODULE_PERIPH_INIT_BUTTONS || DOXYGEN
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/**
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* @name Button pin definitions
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* @{
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*/
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/**
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* @brief Default button GPIO pin definition
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*
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* Pressing the button will give a low signal.
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*
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* @note GPIO9 is a strapping pin that must be pulled up a boot time
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* in order to boot the user application.
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* After boot, it can be used as user button.
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*
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* @note \c BTN0_PIN conflicts with the SPI MISO line. If the SPI
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* module is enabled, the button will be automatically disabled.
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*/
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#define BTN0_PIN GPIO9
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/**
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* @brief Default button GPIO mode definition
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*
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* The pîn is actually pulled up by an external resistor on the board.
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* As a consequence, the pin mode should be #GPIO_IN.
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* The internal pull-up resistor is not enabled on purpose
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* because it would decrease the total pull-up resistor value.
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*/
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#define BTN0_MODE GPIO_IN
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/**
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* @brief Default interrupt flank definition for the button GPIO
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*/
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#ifndef BTN0_INT_FLANK
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#define BTN0_INT_FLANK GPIO_FALLING
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#endif
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/**
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* @brief Definition for compatibility with previous versions
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*/
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#define BUTTON0_PIN BTN0_PIN
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/** @} */
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#endif
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/* include common board definitions as last step */
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#include "board_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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} /* end extern "C" */
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#endif
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/** @} */
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