rt-thread-official/bsp/stm32/stm32mp157a-st-discovery/board/ports/drv_exti.c

37 lines
732 B
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-07-27 thread-liu first version
*/
#include "board.h"
#ifdef BSP_USING_EXTI
//#define DRV_DEBUG
#define LOG_TAG "drv.exti"
#include <drv_log.h>
/* defined the KEY2 pin: */
#define KEY2_PIN GET_PIN(A, 13)
void key2_on(void *args)
{
rt_kprintf("press key2!\n");
}
static int exti_sample(void)
{
rt_pin_mode(KEY2_PIN, PIN_MODE_INPUT_PULLUP);
rt_pin_attach_irq(KEY2_PIN, PIN_IRQ_MODE_FALLING, key2_on, RT_NULL);
rt_pin_irq_enable(KEY2_PIN, PIN_IRQ_ENABLE);
return RT_EOK;
}
INIT_DEVICE_EXPORT(exti_sample);
#endif