STM32通用定时器的基本定时器功能实现灯闪烁

STM32通用定时器的基本定时器功能实现灯闪烁 
/*MAIN.C*/  
/* Includes ------------------------------------------------------------------*/ 
#include "stm32f10x.h" 
#include "misc.h" 

/* Private function prototypes -----------------------------------------------*/ 
void RCC_Configuration(void); 
void NVIC_Configuration(void); 
void GPIO_Configuration(void); 
void TIM3_Configuration(void); 
/* Private functions ---------------------------------------------------------*/ 
/** 
  * @brief  Main program 
  * @param  None 
  * @retval : None 
  */ 
int main(void) 
{ 
RCC_Configuration(); 
NVIC_Configuration(); 
GPIO_Configuration(); 
TIM3_Configuration(); 

TIM_ClearFlag(TIM3, TIM_FLAG_Update);/*清除更新标志位*/ 
TIM_ARRPreloadConfig(TIM3, DISABLE);/*预装载寄存器的内容被立即传送到影子寄存器 */ 
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);     
TIM_Cmd(TIM3, ENABLE); 
  
while (1) {