tim0.txt

来自「str912定时器0的输出比较功能--实现78.125us中断一次IRQ中断」· 文本 代码 · 共 28 行

{ /*定时器0的输出比较功能--实现78.125us中断一次IRQ中断*/

   /* Enable VIC clock */
   SCU_AHBPeriphClockConfig(__VIC,ENABLE);
   VIC_DeInit();

   VIC_Config(TIM0_ITLine, VIC_IRQ, 0); /* Configure the TIM0 interrupt priority */
	 
   VIC_ITCmd(TIM0_ITLine, ENABLE);  /* Enable the TIM0 interrupt */
     
     
        /* TIM0 Deinitialization -----定时器时钟配置----------------------------*/	
   SCU_APBPeriphClockConfig(__TIM01, ENABLE); /* Enable the clock for TIM0 and TIM1 */
   TIM_DeInit(TIM0);
      
   TIM_StructInit(&TIM_InitStructure);
   TIM_InitStructure.TIM_Mode = TIM_OCM_CHANNEL_1;
   TIM_InitStructure.TIM_OC1_Modes = TIM_TIMING;
   TIM_InitStructure.TIM_Clock_Source = TIM_CLK_APB;  // TIMx->CR1的0位选择0内部时钟1外部     
   TIM_InitStructure.TIM_Prescaler = 0x0000;   //TIMx->CR2的0-7位01h2分频00h1分频    
   TIM_InitStructure.TIM_Pulse_Length_1 = 0x1D4C;//TIMx->OC1R的0-15位，OC1比较的值
   TIM_Init(TIM0, &TIM_InitStructure);
   //TIMx->CR1的6位，输出比较1启用
   TIM_ITConfig(TIM0,TIM_IT_OC1,ENABLE);//TIMx->CR2的14位，输出比较1中断启用
  	
   TIM_CounterCmd(TIM0,TIM_START);	//TIMx->CR1的15位EN使能位启用
 
}