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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.
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
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* Copyright (C) 2019 Inria
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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_p-l496g-cell02
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* @{
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*
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* @file
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* @brief Board specific definitions for the P-L496G-CELL02 board
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*
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* @author Alexandre Abadie <alexandre.abadie@inria.fr>
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*/
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#ifndef BOARD_H
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#define BOARD_H
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#include <stdint.h>
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#include "cpu.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 LED pin definitions and handlers
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* @{
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*/
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#define LED0_PIN_NUM 5
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#define LED0_PORT GPIO_PORT_A /**< GPIO port of LED 0 */
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#define LED0_PORT_NUM PORT_A
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#define LED1_PIN_NUM 13
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#define LED1_PORT GPIO_PORT_B /**< GPIO port of LED 1 */
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#define LED1_PORT_NUM PORT_B
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/** @} */
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/**
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* @name Joystick buttons
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* @{
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*/
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#define BTN0_PIN GPIO_PIN(PORT_C, 13) /**< Center button pin */
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#define BTN0_MODE GPIO_IN_PD /**< Center button mode */
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#define BTN1_PIN GPIO_PIN(PORT_I, 9) /**< Left button pin */
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#define BTN1_MODE GPIO_IN_PD /**< Left button mode */
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#define BTN2_PIN GPIO_PIN(PORT_I, 10) /**< Down button pin */
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#define BTN2_MODE GPIO_IN_PD /**< Down button mode */
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#define BTN3_PIN GPIO_PIN(PORT_F, 11) /**< Right button pin */
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#define BTN3_MODE GPIO_IN_PD /**< Right button mode */
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#define BTN4_PIN GPIO_PIN(PORT_I, 8) /**< Up button pin */
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#define BTN4_MODE GPIO_IN_PD /**< Up button mode */
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#include "stm32_leds.h"
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#endif /* BOARD_H */
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/** @} */
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