由于中文注释所以插入截图作为参考

 


#include "stm32f10x_it.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x.h"
#include "stm32f10x_exti.h"
#include "Button.h"
#include "Led.h"
void init_Button(){

    //ÅäÖÃPA0ÖжÏÒý½Å
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);//ÉèÖÃʱÖÓ
    GPIO_InitTypeDef button_structer;//¶¨Òå½á¹¹Ìå
    button_structer.GPIO_Speed = GPIO_Speed_50MHz;//ÉèÖÃÒý½ÅµÃË¢ÐÂËÙ¶È
    button_structer.GPIO_Mode  = GPIO_Mode_IN_FLOATING;     //¸¡¿ÕÊäÈë
    button_structer.GPIO_Pin   = GPIO_Pin_0;
    GPIO_Init(GPIOA,&button_structer);//³õʼ»¯GPIOA PA0
    
    //Öжϴ¦Àíº¯Êý ÍⲿÖжÏ
    /* 1ÅäÖÃʱÖÓ 
         2 GPIO¹¤×÷·½Ê½ 
         3NVICÖжÏÓÅÏȼ¶ (ÓÅÏȼ¶·Ö×飬×Ó/Ö÷ÓÅÏȼ¶¸³Öµ)
         4EXTIÍⲿÖжÏÅäÖà (ÅäÖã¬extiʹÄÜ)
         5Öжϴ¦Àíº¯Êý*/
    
    //NVICÓÅÏȼ¶ÅäÖÃ
    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);//ÓÅÏȼ¶·Ö×é 0-4ʹ¶ÀÁ¢µÄ 9-5 15-10
    NVIC_InitTypeDef nvic;                                            
    nvic.NVIC_IRQChannelCmd                = ENABLE;            //ʹÄÜ
    nvic.NVIC_IRQChannelPreemptionPriority = 0;                     //Ö÷ÓÅÏȼ¶ÅäÖà 0-15
    nvic.NVIC_IRQChannelSubPriority        = 0;                        //×ÓÓÅÏȼ¶ÅäÖà 0
    nvic.NVIC_IRQChannel                   = EXTI0_IRQn;    //ÅäÖÃÖжϺŠPA0  Ϊ 0  
    NVIC_Init(&nvic);                                                                            //³õʼ»¯ÖжÏ
    
    //ÍⲿÖжÏÅäÖÃ
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
    EXTI_InitTypeDef exti;                                            //ÖжϽṹÌå
    exti.EXTI_Line    = EXTI_Line0;                            // ͨµÀÏß·
    exti.EXTI_LineCmd = ENABLE;                                     // ÖжÏʹÄÜ
    exti.EXTI_Mode    = EXTI_Mode_Interrupt;        //¹¤×÷ģʽÉèÖÃΪÖжÏģʽ
    exti.EXTI_Trigger = EXTI_Trigger_Falling;        //ϽµÑØ´¥·¢ÖжÏ
    EXTI_Init(&exti);
    GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource0);//°ÑÖжÏÓëÒý½ÅÁ¬½ÓÆðÀ´
    
    
    
        //ÅäÖÃPC13ÖжÏÒý½Å
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE);//ÉèÖÃʱÖÓ
    GPIO_InitTypeDef button_structer1;//¶¨Òå½á¹¹Ìå
    button_structer1.GPIO_Speed = GPIO_Speed_50MHz;//ÉèÖÃÒý½ÅµÃË¢ÐÂËÙ¶È
    button_structer1.GPIO_Mode  = GPIO_Mode_IN_FLOATING;     //¸¡¿ÕÊäÈë
    button_structer1.GPIO_Pin   = GPIO_Pin_13;
    GPIO_Init(GPIOC,&button_structer1);//³õʼ»¯GPIOA PA0
    
    
    
}
void EXTI0_IRQHandler(){//Öжϴ¦Àíº¯Êý
    int i;
    
    if(EXTI_GetFlagStatus(EXTI_Line0) != RESET){
        Led_Red_On();
        for(i = 0;i<1000000;i++);
        Led_Red_Off();
        for(i = 0;i<1000000;i++);    
        //Çå³ýÖжϱê־λ
        EXTI_ClearITPendingBit(EXTI_Line0);
    }
    
}
void EXTI15_10_IRQHandler(){//Öжϴ¦Àíº¯Êý
    int i;
    
    if(EXTI_GetFlagStatus(EXTI_Line0) != RESET){
        Led_Red_On();
        for(i = 0;i<1000000;i++);
        Led_Red_Off();
        for(i = 0;i<1000000;i++);    
        //Çå³ýÖжϱê־λ
        EXTI_ClearITPendingBit(EXTI_Line0);
    }
    
}

 主函数运行

 

#include "stm32f10x_it.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x.h"
#include "Led.h"
#include "Button.h"
#include "Uart.h"
int main(){
    init_Button();//按键初始化
    while(1);
    return 0;
}

现象