stm32f407实现红外遥控2个按键分别控制一个led灯 代码

下面是使用STM32F407实现红外遥控2个按键分别控制一个LED灯的代码示例：

#include "stm32f4xx.h"

void GPIO_Configuration(void);
void EXTI_Configuration(void);
void LED_On(uint16_t led);
void LED_Off(uint16_t led);

int main(void)
{
    GPIO_Configuration();
    EXTI_Configuration();

    while (1)
    {
        // 循环执行其他任务
    }
}

void GPIO_Configuration(void)
{
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOC, ENABLE);

    GPIO_InitTypeDef GPIO_InitStructure;

    // 配置LED引脚为输出模式
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // 配置按键引脚为输入模式
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_Init(GPIOC, &GPIO_InitStructure);
}

void EXTI_Configuration(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

    EXTI_InitTypeDef EXTI_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;

    // 配置外部中断线路13，对应按键1
    SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource13);

    EXTI_InitStructure.EXTI_Line = EXTI_Line13;
    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; // 上升沿触发
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);

    // 配置外部中断线路14，对应按键2
    SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource14);

    EXTI_InitStructure.EXTI_Line = EXTI_Line14;
    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; // 上升沿触发
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);

    // 配置中断优先级
    NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
}

void LED_On(uint16_t led)
{
    GPIO_SetBits(GPIOA, led);
}

void LED_Off(uint16_t led)
{
    GPIO_ResetBits(GPIOA, led);
}

// 外部中断处理函数
void EXTI15_10_IRQHandler(void)
{
    if (EXTI_GetITStatus(EXTI_Line13) != RESET)
    {
        // 按键1中断触发处理
        LED_On(GPIO_Pin_0);
        EXTI_ClearITPendingBit(EXTI_Line13);
    }

    if (EXTI_GetITStatus(EXTI_Line14) != RESET)
    {
        // 按键2中断触发处理
        LED_On(GPIO_Pin_1);
        EXTI_ClearITPendingBit(EXTI_Line14);
    }
}

以上代码假设红外遥控器的按键分别连接到STM32F407的PC13和PC14引脚，LED灯分别连接到STM32F407的PA0和PA1引脚。在代码中，我们配置了GPIO引脚、外部中断以及中断优先级，以实现按键触发对应LED灯的控制。请根据实际连接进行相应的修改和调整。