void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitSructure;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);          //设置为优先级组2NVIC_InitSructure.NVIC_IRQChannel = EXTI15_10_IRQn;       //定义外部中断线13中断通道
NVIC_InitSructure.NVIC_IRQChannelPreemptionPriority = 0;        //抢占优先级0
NVIC_InitSructure.NVIC_IRQChannelSubPriority = 0;                       //响应优先级0
NVIC_InitSructure.NVIC_IRQChannelCmd = ENABLE;                               //使能指定通道
NVIC_Init(&NVIC_InitSructure);                                                                      NVIC_InitSructure.NVIC_IRQChannel = EXTI15_10_IRQn;        //定义外部中断线15中断通道
NVIC_InitSructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitSructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitSructure.NVIC_IRQChannelCmd = ENABLE;                               //使能指定通道
NVIC_Init(&NVIC_InitSructure);NVIC_InitSructure.NVIC_IRQChannel = EXTI0_IRQn;        //定义外部中断线0中断通道
NVIC_InitSructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitSructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitSructure.NVIC_IRQChannelCmd = ENABLE;                               //使能指定通道
NVIC_Init(&NVIC_InitSructure);}void EXTI_Configuration(void)
{       EXTI_InitTypeDef EXTI_InitStructure;                                                    //初始化结构GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource13);  //指明当前哪个引脚为外部中断触发引脚GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource15);EXTI_ClearITPendingBit(EXTI_Line13);                                      //清除中断标志位 EXTI_Line13对应相应的中断线13EXTI_ClearITPendingBit(EXTI_Line15);EXTI_InitStructure.EXTI_Mode =EXTI_Mode_Interrupt;                            //选择中断模式请求EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;                    //下降沿触发EXTI_InitStructure.EXTI_Line = EXTI_Line13|EXTI_Line15;  // 选择待使能的外部中断线EXTI_InitStructure.EXTI_LineCmd = ENABLE;                                                        // 定义选中线的新状态  使能EXTI_Init(&EXTI_InitStructure);                     //把EXIT_InitStructure中的每一个参数按缺省值填入GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource0);     //指明当前哪个引脚为外部中断触发引脚EXTI_ClearITPendingBit(EXTI_Line0);  EXTI_InitStructure.EXTI_Mode =EXTI_Mode_Interrupt;                            //选择中断模式请求EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;                    //上升沿触发EXTI_InitStructure.EXTI_Line = EXTI_Line0;            // 选择待使能的外部中断线EXTI_InitStructure.EXTI_LineCmd = ENABLE;                                                        // 定义选中线的新状态  使能EXTI_Init(&EXTI_InitStructure);                     //把EXIT_InitStructure中的每一个参数按缺省值填入}stm32f10x_it.c这个文件里
void EXTI15_10_IRQHandler(void)
{if(EXTI_GetITStatus(EXTI_Line13)!=RESET){               GPIO_WriteBit( GPIOA,GPIO_Pin_8,(BitAction)(1-GPIO_ReadOutputDataBit(GPIOA,GPIO_Pin_8))); //LED0翻转EXTI_ClearITPendingBit(EXTI_Line13);}if(EXTI_GetITStatus(EXTI_Line15)!=RESET){               GPIO_WriteBit( GPIOD,GPIO_Pin_2,(BitAction)(1-GPIO_ReadOutputDataBit(GPIOD,GPIO_Pin_2))); //LED0翻转EXTI_ClearITPendingBit(EXTI_Line15);  }}void EXTI0_IRQHandler(void)
{if(EXTI_GetITStatus(EXTI_Line0)!=RESET)
{ GPIO_WriteBit( GPIOA,GPIO_Pin_8,(BitAction)(1-GPIO_ReadOutputDataBit(GPIOA,GPIO_Pin_8))); //LED0翻转GPIO_WriteBit( GPIOD,GPIO_Pin_2,(BitAction)(1-GPIO_ReadOutputDataBit(GPIOD,GPIO_Pin_2))); //LED0翻转EXTI_ClearITPendingBit(EXTI_Line0);
}
}