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/*
* Copyright (c) 2006-2026, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <rtdevice.h>
#include "board.h"
#ifdef RT_USING_FINSH
#include <finsh.h>
static volatile rt_uint32_t sw2_irq_count;
static volatile rt_uint32_t sw3_irq_count;
static void button_irq(void *args)
{
(*(volatile rt_uint32_t *)args)++;
}
static int button_irq_test(void)
{
rt_err_t result;
rt_uint32_t sw2_count;
rt_uint32_t sw3_count;
sw2_irq_count = 0;
sw3_irq_count = 0;
rt_pin_mode(SW2_PIN, PIN_MODE_INPUT_PULLUP);
rt_pin_mode(SW3_PIN, PIN_MODE_INPUT_PULLUP);
result = rt_pin_attach_irq(SW2_PIN, PIN_IRQ_MODE_FALLING,
button_irq, (void *)&sw2_irq_count);
if (result != RT_EOK)
{
return result;
}
result = rt_pin_attach_irq(SW3_PIN, PIN_IRQ_MODE_FALLING,
button_irq, (void *)&sw3_irq_count);
if (result != RT_EOK)
{
rt_pin_detach_irq(SW2_PIN);
return result;
}
rt_pin_irq_enable(SW2_PIN, PIN_IRQ_ENABLE);
rt_pin_irq_enable(SW3_PIN, PIN_IRQ_ENABLE);
rt_kprintf("Press SW2 and SW3 within 10 seconds\n");
rt_thread_mdelay(10000);
rt_pin_irq_enable(SW2_PIN, PIN_IRQ_DISABLE);
rt_pin_irq_enable(SW3_PIN, PIN_IRQ_DISABLE);
rt_pin_detach_irq(SW2_PIN);
rt_pin_detach_irq(SW3_PIN);
sw2_count = sw2_irq_count;
sw3_count = sw3_irq_count;
rt_kprintf("%s: SW2=%u, SW3=%u interrupt(s)\n",
sw2_count != 0U && sw3_count != 0U ? "PASS" : "FAIL",
(unsigned int)sw2_count, (unsigned int)sw3_count);
return sw2_count != 0U && sw3_count != 0U ? RT_EOK : -RT_ERROR;
}
MSH_CMD_EXPORT(button_irq_test, count SW2 and SW3 falling-edge interrupts for 10 seconds);
static void reboot(void)
{
rt_hw_cpu_reset();
}
MSH_CMD_EXPORT(reboot, reset the MCU);
#endif
int main(void)
{
rt_pin_write(LED_RED_PIN, PIN_HIGH);
rt_pin_mode(LED_RED_PIN, PIN_MODE_OUTPUT);
while (1)
{
rt_pin_write(LED_RED_PIN, !rt_pin_read(LED_RED_PIN));
rt_thread_mdelay(500);
}
}
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