mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
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.
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2019 Inria
|
|
* 2019 Freie Universität Berlin
|
|
* 2019 Kaspar Schleiser <kaspar@schleiser.de>
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup boards_pyboard
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Board specific definitions for the pyboard board
|
|
*
|
|
* @author Kaspar Schleiser <kaspar@schleiser.de>
|
|
*/
|
|
|
|
#ifndef BOARD_H
|
|
#define BOARD_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "cpu.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @name LED pin definitions and handlers
|
|
* @{
|
|
*/
|
|
#define LED0_PIN_NUM 4
|
|
#define LED0_PORT GPIO_PORT_B /**< GPIO port of LED 0 */
|
|
#define LED0_PORT_NUM PORT_B
|
|
/** @} */
|
|
|
|
/**
|
|
* @name User button pin configuration
|
|
* @{
|
|
*/
|
|
#define BTN0_PIN GPIO_PIN(PORT_B, 3) /**< User button pin */
|
|
#define BTN0_MODE GPIO_IN_PU /**< User button pin mode */
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#include "stm32_leds.h"
|
|
|
|
#endif /* BOARD_H */
|
|
/** @} */
|