请教关于外部中断错误触发的问题

发布于 2019-12-24 10:17:16 浏览：1485 订阅该版

我在stm32中配置了两个中断按键，但是不知道为什么有的时候按第一个按键，第二个按键的处理函数也会被错误触发//这是我的配置代码

```int start_logic_init(void)
{
	//配置模式为输入
  rt_pin_mode(starting_gun_pin, PIN_MODE_INPUT_PULLUP);
  rt_pin_mode(starting_block1_pin, PIN_MODE_INPUT_PULLUP);
	rt_pin_mode(starting_block2_pin, PIN_MODE_INPUT_PULLUP);
	rt_pin_mode(starting_reset_pin, PIN_MODE_INPUT_PULLUP);
  //绑定中断函数
	
	rt_pin_attach_irq(starting_reset_pin, PIN_IRQ_MODE_FALLING, reset_trigger, RT_NULL);
	rt_pin_attach_irq(starting_gun_pin, PIN_IRQ_MODE_FALLING, starting_gun_trigger, RT_NULL);
	//rt_pin_attach_irq(starting_block1_pin, PIN_IRQ_MODE_RISING_FALLING   , starting_block1_trigger, RT_NULL);
//	rt_pin_attach_irq(starting_block2_pin, PIN_IRQ_MODE_RISING_FALLING   , starting_block2_trigger, RT_NULL);
	//使能引脚中断
	rt_pin_irq_enable(starting_gun_pin, PIN_IRQ_ENABLE);
	rt_pin_irq_enable(starting_reset_pin, PIN_IRQ_ENABLE);
//	rt_pin_irq_enable(starting_block1_pin, PIN_IRQ_ENABLE);
//	rt_pin_irq_enable(starting_block2_pin, PIN_IRQ_ENABLE);
	
	
	return RT_EOK;
}
INIT_DEVICE_EXPORT(start_logic_init);```中断回调函数

```void reset_trigger(void *args)
{
	  rt_uint32_t level;
		level = rt_hw_interrupt_disable();
		rt_sem_release(reset_sem);
		rt_hw_interrupt_enable(level);
}``````void starting_gun_trigger(void *args)
{
		rt_uint32_t level;
		level = rt_hw_interrupt_disable();
		rt_sem_release(starting_gun_trigger_sem);
		rt_hw_interrupt_enable(level);	
}```