ST 有 HAL 写的 PVD 范例吗?

只看该作者 · 2018-7-13 15:41

void PVD_Init(void)

{

PWR_PVDTypeDef PWR_PVDStruct;
__HAL_RCC_PWR_CLK_ENABLE();
PWR_PVDStruct.PVDLevel = PWR_PVDLEVEL_7;          // 2.9V

//PWR_PVDStruct.Mode = PWR_PVD_MODE_IT_RISING;
PWR_PVDStruct.Mode = PWR_PVD_MODE_IT_RISING_FALLING;

HAL_PWR_ConfigPVD(&PWR_PVDStruct);

HAL_PWR_EnablePVD();
}
void HAL_PWR_PVDCallback(void)
{
  HAL_PWR_EnableBkUpAccess();
  HAL_PWR_EnableBkUpReg();
__HAL_RCC_BKPSRAM_CLK_ENABLE();

U32CopyToBKP(0xaabbccdd, 0);

}

以上程序进不了 PVD 中断

只看该作者 · 2018-7-13 16:46

void PVD_Init(void)
{

PWR_PVDTypeDef PWR_PVDStruct;

   __HAL_RCC_PWR_CLK_ENABLE();

PWR_PVDStruct.PVDLevel = PWR_PVDLEVEL_7;          // 2.9V

PWR_PVDStruct.Mode = PWR_PVD_MODE_IT_RISING;
   //PWR_PVDStruct.Mode = PWR_PVD_MODE_IT_RISING_FALLING;

HAL_PWR_ConfigPVD(&PWR_PVDStruct);

   HAL_NVIC_SetPriority(PVD_IRQn,4,0);
HAL_NVIC_EnableIRQ(PVD_IRQn);
HAL_PWR_EnablePVD();
}

这样写就可以了