platform_result_t platform_rtc_enter_powersave ( void ) { //#ifdef RTC_ENABLED /* !!If we dont read the time and store it. get an error while trying to enter STM RTC initialisation mode */ /* save current rtc time locally */ platform_rtc_get_time( &saved_rtc_time ); //#endif /* #ifdef RTC_ENABLED */ /* Reset RTC values */ reset_rtc_values(); /* Change the clocking state of the RTC, so it ticks every 1.25ms while cpu is sleeping - 800Hz clock */ stm32f2_rtc_change_clock( ¤t_clock_state, CLOCKING_EVERY_1p25MSEC ); return PLATFORM_SUCCESS; }
void platform_mcu_enter_standby(uint32_t secondsToWakeup) { platform_rtc_time_t time; uint32_t currentSecond; RTC_AlarmTypeDef RTC_AlarmStructure; PWR_WakeUpPinCmd(ENABLE); if(secondsToWakeup == MICO_WAIT_FOREVER) PWR_EnterSTANDBYMode(); platform_log("Wake up in %d seconds", secondsToWakeup); platform_rtc_get_time(&time); currentSecond = time.hr*3600 + time.min*60 + time.sec; currentSecond += secondsToWakeup; RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_HourFormat_24; RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = currentSecond/3600%24; RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = currentSecond/60%60; RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = currentSecond%60; RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31; RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date; RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay ; RTC_AlarmCmd(RTC_Alarm_A, DISABLE); /* Disable the Alarm A */ RTC_ITConfig(RTC_IT_ALRA, DISABLE); /* Clear RTC Alarm Flag */ RTC_ClearFlag(RTC_FLAG_ALRAF); RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure); /* Enable RTC Alarm A Interrupt: this Interrupt will wake-up the system from STANDBY mode (RTC Alarm IT not enabled in NVIC) */ RTC_ITConfig(RTC_IT_ALRA, ENABLE); /* Enable the Alarm A */ RTC_AlarmCmd(RTC_Alarm_A, ENABLE); PWR_EnterSTANDBYMode(); }
OSStatus MicoRtcGetTime(mico_rtc_time_t* time) { return (OSStatus) platform_rtc_get_time( time ); }
//==================================== static int rtc_standby( lua_State* L ) { char buff[60]; uint8_t mode = luaL_checkinteger( L, 1 ); if (mode > 1) { l_message( NULL, "mode has to be 0 or 1" ); return 0; } if (mode==1 && use_wwdg == 0) { l_message(NULL,"IWDG active, cannot enter STOP mode."); return 0; } int nsec = luaL_checkinteger( L, 2 ); if ((nsec < 1) || (nsec > 84559)) { l_message(NULL,"wrong interval (1~84599)"); return 0; } TM_RTC_DisableAlarm(TM_RTC_Alarm_A); TM_RTC_DisableAlarm(TM_RTC_Alarm_B); platform_rtc_time_t time; uint32_t currentSecond; RTC_AlarmTypeDef RTC_AlarmStructure; platform_rtc_get_time(&time); currentSecond = time.hr*3600 + time.min*60 + time.sec; currentSecond += nsec; RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_HourFormat_24; RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = currentSecond/3600%24; RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = currentSecond/60%60; RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = currentSecond%60; RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31; RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date; RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay ; RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure); // Enable RTC Alarm A Interrupt RTC_ITConfig(RTC_IT_ALRA, ENABLE); // Enable the Alarm A RTC_AlarmCmd(RTC_Alarm_A, ENABLE); /* Clear Alarm A pending bit */ /* Clear RTC Alarm Flag */ RTC_ClearFlag(RTC_FLAG_ALRAF); RTC_ClearFlag(RTC_IT_ALRA); if (mode == 0) sprintf(buff,"Going to STANDBY MODE...\r\n"); else if (mode == 1) sprintf(buff,"Going to STOP MODE...\r\n"); l_message(NULL,buff); sprintf(buff,"Wake up in %d second(s)\r\n", nsec); l_message(NULL,buff); //mico_rtos_suspend_all_thread(); if (mode == 0) { PWR_EnterSTANDBYMode(); // RESET } else if (mode == 1) { PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI); // restore clocks init_clocks(); } //mico_rtos_resume_all_thread(); // *** Back from stop *** TM_RTC_DisableAlarm(TM_RTC_Alarm_A); TM_RTC_DisableAlarm(TM_RTC_Alarm_B); luaWdgReload(); l_message(NULL,"Back from power save mode."); return 0; }