关于KL25的LPTMR模块的使用

胡孟龙 · 发表于 2017-4-11 17:43:08

问题：
为何我还没有对LPTMR模块初始化时他就已经反复进入中断了？
源程序：
int main(void)
/*lint -restore Enable MISRA rule (6.3) checking. */
{
  /* Write your local variable definition here */
  char Start_flag;
  /*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
  PE_low_level_init();
  /*** End of Processor Expert internal initialization.                   ***/
  while(1)
  {
Start_flag=getchar();
if(Start_flag=='s')
         {
         break;
         }
  }

  MyDacPtr = DA_PTE30_Init(NULL);          /* Initialization of DA_PTE30 component */
  Error = DA_PTE30_SetValue(MyDacPtr, OutputData);                   /* Set converter output */

  TPM1_Init(); /*TPM Initialization*/
  LPTMR_Init(); /*LPTMR Initialization*/

/*************************主循环**************************/
  while(1)
{
if((Count_Flag==(Length-1))||(Count_Flag>(Length-1)))
   {
DisableInterrupts;
for(Count_Flag=Data_Flag;Count_Flag<(Length-1);Count_Flag++)
{
printf("%d\n", Sampling_Data[Count_Flag]);
}
printf("\n\n\n");
Count_Flag=0;
Data_Flag=0;
EnableInterrupts;
   }
else
{
for(;Data_Flag<(Count_Flag-1);Data_Flag++)
{
printf("%d\n", Sampling_Data[Data_Flag]);
}
}
}

  /*** Don't write any code pass this line, or it will be deleted during code generation. ***/
  /*** RTOS startup code. Macro PEX_RTOS_START is defined by the RTOS component. DON'T MODIFY THIS CODE!!! ***/
  #ifdef PEX_RTOS_START
PEX_RTOS_START();                /* Startup of the selected RTOS. Macro is defined by the RTOS component. */
  #endif
  /*** End of RTOS startup code.  ***/
  /*** Processor Expert end of main routine. DON'T MODIFY THIS CODE!!! ***/
  for(;;){}
  /*** Processor Expert end of main routine. DON'T WRITE CODE BELOW!!! ***/
} /*** End of main routine. DO NOT MODIFY THIS TEXT!!! ***/

void LPT_Isr(void)
{
LPT_indicator_NegVal(LPT_indicator_DeviceData);       // do this asap - show start of Switch cycle//RED LED
LPTMR0_CSR |= LPTMR_CSR_TCF_MASK; //clear interrupt mask
Channel_switch();
printf("s");
}

LPTMR的PE配置：