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https://github.com/RIOT-OS/RIOT.git
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97b91b4f8f
This fixes a race in `LED<NUM>_TOGGLE`, which is a read-copy-write
operation. Any access to a GPIO pin on the same GPIO port that
happens concurrently could result in data corruption. Using the
GPIO LL API, which is thread-safe, fixes the issue.
Note: The used GPIO LL functions will work even in when the GPIO LL
module is not used.
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* Copyright (C) 2015 TriaGnoSys GmbH
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* 2017 Alexander Kurth, Sören Tempel, Tristan Bruns
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* 2018 Otto-von-Guericke-Universität Magdeburg
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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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/**
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* @ingroup boards_blackpill_stm32f103c8
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* @brief Support for the stm32f103c8 based Black pill.
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*
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* @{
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*
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* @file
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* @brief Peripheral MCU configuration for the Black Pill board
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*
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* @author Víctor Ariño <victor.arino@triagnosys.com>
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* @author Sören Tempel <tempel@uni-bremen.de>
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* @author Tristan Bruns <tbruns@uni-bremen.de>
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* @author Alexander Kurth <kurth1@uni-bremen.de>
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* @author Marian Buschsieweke <marian.buschsieweke@ovgu.de>
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*/
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#ifndef BOARD_H
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#define BOARD_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @name Macros for controlling the on-board LED.
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* @{
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*/
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#define LED0_PORT GPIO_PORT_B /**< GPIO port of LED 0 */
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#define LED0_PORT_NUM PORT_B /**< GPIO Port number the LED is connected to */
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#define LED0_PIN_NUM 12 /**< Pin number the LED is connected to */
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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/* Beware: This include must come *after* LED0 parameters have been defined */
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#include "board_common.h"
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#endif /* BOARD_H */
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/** @} */
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