F1定时器不工作，，程序好像也看不出什么问题，请各为帮忙看看，谢谢！

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楼主 | 2020-4-23 10:14 | 只看该作者回帖奖励

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定时器, TI, IO, pi, gp

#include &quot;stm32f10x.h&quot;

#define digitalToggle(p,i)       {p->ODR ^= i;}
#define led_Toggle                digitalToggle(GPIOC,GPIO_Pin_13)

uint32_t  time = 0;

void LED_Config(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;

      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_13;

      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;

      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

      GPIO_Init(GPIOC, &GPIO_InitStructure);

      GPIO_SetBits(GPIOC,GPIO_Pin_13 );
}

void NVIC_Config(void)
{
      NVIC_InitTypeDef NVIC_InitStructure;

      NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);  //?D??×é?a0

      NVIC_InitStructure.NVIC_IRQChannel=TIM2_IRQn;  //?D???'

      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;  //?à??ó??è??

      NVIC_InitStructure.NVIC_IRQChannelSubPriority=3;  //?ìó|ó??è??

      NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;  //ê1?ü?D??

      NVIC_Init(&NVIC_InitStructure);  //3?ê??ˉ?D??
}

void Timer_Config(void)
{
      TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);  //?¨ê±?÷ê±?ó

      TIM_TimeBaseStructure.TIM_Period=999;//??×°???ü?ú

      TIM_TimeBaseStructure.TIM_Prescaler=71;  //ó?·??μ±è

      TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1; //ê±?ó·??μòò×ó

      TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //?òé???êy?÷??ê?

      TIM_TimeBaseStructure.TIM_RepetitionCounter=0;

      TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure); //3?ê??ˉ?¨ê±?÷

      TIM_ClearFlag(TIM2,TIM_FLAG_Update); //??3t?D??±ê??

      TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE); //?a???D??

      TIM_Cmd(TIM2,ENABLE); //ê1?ü?¨ê±?÷

}

int main(void)
{
      LED_Config();

      NVIC_Config();

      Timer_Config();

      while(1)
      {
            if(time==1000)
            {
                     time = 0;

                     led_Toggle;
            }
      }
}

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F1定时器不工作，，程序好像也看不出什么问题，请各为帮忙看看，谢谢！

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