想试下定时器是否能正常用，编译时无错误，下载到芯片后进行单步调试，发现执行完 NVIC_Init(&NVIC_InitStructure);这句后就不往下执行了，请教各位老师啥问题？？
 
#include "stm32f10x.h"
 
unsigned int TimingDelay;
 
void Delay(unsigned int x)
{
 
TimingDelay=x;
while(TimingDelay--);
}
 
void TIM3_IRQHandler(void)
{
if(TIM_GetITStatus(TIM2,TIM_IT_Update) != RESET)
{
TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
GPIO_SetBits(GPIOC, GPIO_Pin_7); 
}
 
}
 
 
int main(void)
{ 
  SystemInit();
  
  
  //配置IO口
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO,ENABLE);//IO口使能设置
  GPIO_InitTypeDef GPIO_InitStructure;   //定义结构体
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;                  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
  
 
  //设置定时器2
  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);//打开TIM2外设时钟
  TIM_TimeBaseStructure.TIM_Period = 10000;//1s
  TIM_TimeBaseStructure.TIM_Prescaler = 7199;//7200分频
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;//设置时钟分割
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//设置计数方式为向上计数
  TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);//初始化定时器2
  TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);//打开定时器2中断
  TIM_Cmd(TIM3,ENABLE);//使能定时器
 
  
  //使能TIM2中断
  NVIC_InitTypeDef NVIC_InitStructure;
  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;//选择TIM2全局中断
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
  
  while(1);
}
 
 
 

"stm32f10x_tim.h"
"stm32f10x_tim.C"  
 
你加了上面这 文件了吗？

"stm32f10x_tim.h"
"stm32f10x_tim.C"  
 
你加了上面这 文件了吗？