STM8L的TIM1初始化问题

1万 · 2021-9-11 21:12

关于STM8L的TIM1初始化问题，请教一下，
初始化代码如下：
void TIM1_init0(void)
{
  CLK->PCKENR2 |=CLK_PCKENR2_TIM1;

  TIM1->CR1 = 0;

  TIM1->PSCRH = 0x3E;
  TIM1->PSCRL = 0x80; // 1000Hz = 1mS  计数频率(定时器时钟) Fcn  =  f /(PSCR+1) f ：系统时钟 16M

  TIM1->CNTRH = 0;
  TIM1->CNTRL = 0;

  TIM1->ARRH  = 0x00;
  TIM1->ARRL  = 0x32; //

  TIM1->IER = 0x01;
  //TIM1->EGR = 0x01;

  TIM1->CR1 = 0x01;
  //TIM1->RCR = 56;
}

中断函数如下：
INTERRUPT_HANDLER(TIM1_UPD_OVF_TRG_COM_IRQHandler, 23)
{
  /* In order to detect unexpected events during development,
   it is recommended to set a breakpoint on the following instruction.
  */
  static unsigned int  nomlnum = 0;

  TIM1->SR1 =0;

  nomlnum++;

  if(!(nomlnum%10)) GPIOC->ODR ^=GPIO_Pin_1;

}

仿真的时候，感觉没进中断，没达到预设的结果，麻烦帮看看问题出在哪里，谢谢了