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;
}