STM32中断程序，按键控制灯的亮灭，程序运行没错，烧录到单片机就不行呢？哪位大神帮帮忙啊，不胜感谢

Question

void RCC_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* 配置LED灯使用的GPIO管脚模式，输出模式，灌电流驱动*/
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE); //APB2分频时钟
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP; //推挽输出
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_0); //拉高对应GPIO口

/* 配置KEY按键使用的GPIO管脚模式，输出模式，灌电流驱动*/
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB| RCC_APB2Periph_AFIO, ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_12; //使用PB12~PB15
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPU ; //GPIO工作在上拉输入
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOB,&GPIO_InitStructure);
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource12); //将GPIOB的12脚映射到外部中断线路
GPIO_SetBits(GPIOB,GPIO_Pin_12); //拉高对应GPIO口
}
void EXTI_config(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_ClearFlag(EXTI_Line12); //清除EXTI线路挂起标志位
EXTI_ClearITPendingBit(EXTI_Line12);
EXTI_InitStructure.EXTI_Line=EXTI_Line12; //使能中断线路
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt; //使能的线路模式为中断使能
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Falling; //设置线路为下降沿为线路请求
EXTI_GenerateSWInterrupt(EXTI_Line12);
EXTI_InitStructure.EXTI_LineCmd=ENABLE; //使能
EXTI_Init(&EXTI_InitStructure);
}
void NVIC_config(void)
{
NVIC_InitTypeDef NVIC_InitStructure; //定义结构体变量
//NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x4000); //分配中断向量表
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); //选择中断分组
NVIC_InitStructure.NVIC_IRQChannel=EXTI15_10_IRQn ; //使能外部中断线0中断.
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0; //IRQ通道的先占优先级是0
NVIC_InitStructure.NVIC_IRQChannelSubPriority=2; //从优先级是2
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; //使能中断
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化外设的变量
}
int main(void)
{
SystemInit();
RCC_Configuration();
NVIC_config();
EXTI_config();
//GPIO_ResetBits(GPIOC,GPIO_Pin_0);
while(1)
{

}
}

/* I/O线中断，中断线为PB12 */
void EXIT15_10_IRQHandler()
{
if(EXTI_GetITStatus(EXTI_Line12)!=RESET)
{

EXTI_ClearITPendingBit(EXTI_Line12);
EXTI_ClearFlag(EXTI_Line12);
delay_ms(10);
if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12)==0)
{
if(GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_0)==0)
GPIO_SetBits(GPIOC,GPIO_Pin_0);
else
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
}
}
}

Answer 1

现在MDK在仿真试试，主要查看一下那些重要的寄存器有没有配置错误或者被其它代码修改等。其实仿真没有问题，就应该怀疑你自己的板子问题。以下可以参考的代码：
/*******************普中科技 www.prechin.com**********************************
*
* STM32中断实验
*
* 实验目的： 掌握中断的配置
* 连接方法： 用排线或杜邦线分别连 JP10--JP1 JP11--JP5
* 实验现象： 当K7按下LED灯 再按时，LED灯会熄灭
*
*******************************************************************************/

#include "stm32f10x_lib.h"

/******************************** 变量定义 ------------------------------------*/
EXTI_InitTypeDef EXTI_InitStructure;
ErrorStatus HSEStartUpStatus;

/*********************************声明函数 -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
void NVIC_Configuration(void);

/*******************************************************************************
*
* 主函数
*
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif

RCC_Configuration(); //系统时钟配置

NVIC_Configuration(); //NVIC配置

GPIO_Configuration(); //配置GPIO

///*将EXTI线6连接到PB6*/
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource6);
/* Configure Key Button EXTI Line to generate an interrupt on falling edge */
//配置按钮中断线触发方式
EXTI_InitStructure.EXTI_Line = EXTI_Line6;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿触发
EXTI_InitStructure.EXTI_LineCmd = ENABLE; //中断线使能
EXTI_Init(&EXTI_InitStructure); //初始化中断
/* Generate software interrupt: simulate a falling edge applied on Key Button EXTI line */
EXTI_GenerateSWInterrupt(EXTI_Line6); //EXTI_Line6中断允许 到此中断配置完成,可以写中断处理函数。

while (1)
{
}
}

/*******************************************************************************
*
* RCC配置
*
*******************************************************************************/
void RCC_Configuration(void)
{
//复位RCC外部设备寄存器到默认值
RCC_DeInit();
//打开外部高速晶振
RCC_HSEConfig(RCC_HSE_ON);
//等待外部高速时钟准备好
HSEStartUpStatus = RCC_WaitForHSEStartUp();
//外部高速时钟已经准别好
if(HSEStartUpStatus == SUCCESS)
{

FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

FLASH_SetLatency(FLASH_Latency_2);

//配置AHB(HCLK)时钟=SYSCLK
RCC_HCLKConfig(RCC_SYSCLK_Div1);

//配置APB2(PCLK2)钟=AHB时钟
RCC_PCLK2Config(RCC_HCLK_Div1);
//配置APB1(PCLK1)钟=AHB 1/2时钟
RCC_PCLK1Config(RCC_HCLK_Div2);
//配置ADC时钟=PCLK2 1/4
RCC_ADCCLKConfig(RCC_PCLK2_Div4);

//配置PLL时钟 == 外部高速晶体时钟*9
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

//配置ADC时钟= PCLK2/4
RCC_ADCCLKConfig(RCC_PCLK2_Div4);
//使能PLL时钟
RCC_PLLCmd(ENABLE);
//等待PLL时钟就绪
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
//配置系统时钟 = PLL时钟
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
//检查PLL时钟是否作为系统时钟
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}

/* Enable Key Button GPIO Port, GPIO_LED and AFIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB
| RCC_APB2Periph_AFIO, ENABLE);
}
/*************************************************
函数: void GPIO_Config(void）
功能: GPIO配置
**************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输入
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //配置浮空输入
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
/*******************************************************************************
* Function Name : NVIC_Configuration
* Description : Configure the nested vectored interrupt controller.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); //分配中断向量表
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); //设置中断优先级

/* Enable the EXTI9_5 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel; //中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //强占优先级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;//次优先级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //通道中断使能
NVIC_Init(&NVIC_InitStructure);//初始化中断
}
#ifdef DEBUG
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif

void EXTI9_5_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line6) != RESET) //检测制定的EXTI线路触发请求是否发生。
{
/* Toggle GPIO_LED pin 7*/
GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)((1-GPIO_ReadOutputDataBit(GPIOB, GPIO_Pin_8))));
/* Clear the Key Button EXTI line pending bit */
EXTI_ClearITPendingBit(EXTI_Line6); //清除EXTI线路挂起位
}
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/追问

硬件连接应该没有问题啊,下载别的程序可以运行正常!