stm32 红外遥控控制触发中断代码

以下是基于STM32的红外遥控控制触发中断代码：

#include "stm32f10x.h"

#define IR_PIN GPIO_Pin_0
#define IR_PORT GPIOA

uint16_t IR_Value = 0;
uint8_t IR_Count = 0;
uint8_t IR_Data[4] = {0};

void EXTI0_IRQHandler(void) {
  if (EXTI_GetITStatus(EXTI_Line0) != RESET) {
    IR_Value = TIM_GetCounter(TIM2);

    if ((IR_Value > 8000) && (IR_Value < 10000)) {
      IR_Count = 0;
    }

    IR_Data[IR_Count] = IR_Value;
    IR_Count++;

    TIM_SetCounter(TIM2, 0);

    EXTI_ClearITPendingBit(EXTI_Line0);
  }
}

int main(void) {
  GPIO_InitTypeDef GPIO_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;
  EXTI_InitTypeDef EXTI_InitStructure;
  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

  GPIO_InitStructure.GPIO_Pin = IR_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(IR_PORT, &GPIO_InitStructure);

  NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  EXTI_InitStructure.EXTI_Line = EXTI_Line0;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
  TIM_TimeBaseStructure.TIM_Prescaler = 71;
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

  TIM_Cmd(TIM2, ENABLE);

  while (1) {
    // Do something here
  }
}

这段代码使用了STM32的外部中断（EXTI）和定时器（TIM）模块来实现红外遥控控制触发中断。当外部中断检测到红外信号的上升沿或下降沿时，会触发中断服务程序（IRQHandler），并通过定时器来测量红外信号的脉宽。通过测量不同脉宽的时间，可以识别不同的信号，从而实现遥控控制。