RCC_LSICmd(ENABLE);
??????? while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET);
??????? PWR_AWU_SetPrescaler(PWR_AWU_Prescaler_61440);
??????? PWR_AWU_SetWindowValue(30);
??????? PWR_EnterSTANDBYMode(PWR_STANDBYEntry_WFI);
能算出待機(jī)時(shí)間是多少嗎? 比如想設(shè)定待機(jī)時(shí)間為100秒左右應(yīng)該如何設(shè)置