PWR_PVDTypeDef hPVD;

hPVD.PVDLevel = PWR_PVDLEVEL_7;
hPVD.Mode = PWR_PVD_MODE_NORMAL;
HAL_PWR_ConfigPVD(&hPVD);

HAL_PWR_EnablePVD();

void HALPWRPVDCallback(void)
{
    //code
}