STM32L4 LPTIM无法进入中断，从STOP模式唤醒

只看该作者 · 2019-1-24 18:17

代码如下，根据官方例子等都不能进入中断，LSE可以使用（LPUART使用LSE能正常工作），调试过程中进入过2次，手贱没保存。求救。

#include "lptim.h"



LPTIM_HandleTypeDef LptimHandle;



void LPTIM1_IRQHandler(void)

{

    HAL_LPTIM_IRQHandler(&LptimHandle);

    

    log(DEBUG,"lptim count=%u\n" , HAL_LPTIM_ReadCounter(&LptimHandle));

    

}



void HAL_LPTIM1_MspInit(LPTIM_HandleTypeDef *lptimHandle)

{

    __HAL_RCC_LPTIM1_CLK_ENABLE();



    HAL_NVIC_SetPriority(LPTIM1_IRQn, 5, 0);

    HAL_NVIC_EnableIRQ(LPTIM1_IRQn);

 

}

#define Period               (uint32_t) 65535

#define Timeout              (uint32_t) (32768 - 1)



int lptim_hal_init(void)

{

    RCC_PeriphCLKInitTypeDef        RCC_PeriphCLKInitStruct;        

    

    HAL_Delay(2000);



        /* Select the LSE clock as LPTIM peripheral clock */

    RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LPTIM1;

    RCC_PeriphCLKInitStruct.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSE;  

    HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);



    LptimHandle.Instance = LPTIM1;



    LptimHandle.Init.Clock.Source    = LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC;

    LptimHandle.Init.CounterSource   = LPTIM_COUNTERSOURCE_INTERNAL;

    LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV1;  

    LptimHandle.Init.Trigger.Source  = LPTIM_TRIGSOURCE_SOFTWARE; 

    LptimHandle.Init.OutputPolarity  = LPTIM_OUTPUTPOLARITY_HIGH;

    LptimHandle.Init.UpdateMode      = LPTIM_UPDATE_IMMEDIATE;

    LptimHandle.Init.Input1Source    = LPTIM_INPUT1SOURCE_GPIO;

    LptimHandle.Init.Input2Source    = LPTIM_INPUT2SOURCE_GPIO;



    if (HAL_LPTIM_Init(&LptimHandle) != HAL_OK)

    {

        Error_Handler(__FILE__,__LINE__);

    }

    INIT_PRINT(INIT_OK,"LPTIM1 init");

    

    if (HAL_LPTIM_Counter_Start(&LptimHandle, 1000) != HAL_OK)

    {

        Error_Handler(__FILE__,__LINE__);

    }



    HAL_PWREx_EnterSTOP1Mode(PWR_STOPENTRY_WFI);

    

    log(DEBUG,"lptime init\n");

  

    return 0;

}