void RtcStopTimer( void )
{
RtcClearStatus( );
}
static void RtcStartWakeUpAlarm( uint32_t timeoutValue )
{
uint16_t rtcSeconds = 0;
uint16_t rtcMinutes = 0;
uint16_t rtcHours = 0;
uint16_t rtcDays = 0;
uint8_t rtcAlarmSeconds = 0;
uint8_t rtcAlarmMinutes = 0;
uint8_t rtcAlarmHours = 0;
uint16_t rtcAlarmDays = 0;
RTC_AlarmTypeDef RTC_AlarmStructure;
RTC_TimeTypeDef RTC_TimeStruct;
RTC_DateTypeDef RTC_DateStruct;
RtcClearStatus( );
RtcTimerContext = RtcGetCalendarValue( );
RTC_GetTime( RTC_Format_BIN, &RTC_TimeStruct );
RTC_GetDate( RTC_Format_BIN, &RTC_DateStruct );
timeoutValue = timeoutValue / RTC_ALARM_TIME_BASE;
if( timeoutValue > 2160000 ) // 25 "days" in tick
{ // drastically reduce the computation time
rtcAlarmSeconds = RTC_TimeStruct.RTC_Seconds;
rtcAlarmMinutes = RTC_TimeStruct.RTC_Minutes;
rtcAlarmHours = RTC_TimeStruct.RTC_Hours;
rtcAlarmDays = 25 + RTC_DateStruct.RTC_Date; // simply add 25 days to current date and time
if( ( RTC_DateStruct.RTC_Year == 0 ) || ( RTC_DateStruct.RTC_Year % 4 == 0 ) )
{
if( rtcAlarmDays > DaysInMonthLeapYear[ RTC_DateStruct.RTC_Month - 1 ] )
{
rtcAlarmDays = rtcAlarmDays % DaysInMonthLeapYear[ RTC_DateStruct.RTC_Month - 1];
}
}
else
{
if( rtcAlarmDays > DaysInMonth[ RTC_DateStruct.RTC_Month - 1 ] )
{
rtcAlarmDays = rtcAlarmDays % DaysInMonth[ RTC_DateStruct.RTC_Month - 1];
}
}
}
else
{
rtcSeconds = ( timeoutValue % SecondsInMinute ) + RTC_TimeStruct.RTC_Seconds;
rtcMinutes = ( ( timeoutValue / SecondsInMinute ) % SecondsInMinute ) + RTC_TimeStruct.RTC_Minutes;
rtcHours = ( ( timeoutValue / SecondsInHour ) % HoursInDay ) + RTC_TimeStruct.RTC_Hours;
rtcDays = ( timeoutValue / SecondsInDay ) + RTC_DateStruct.RTC_Date;
rtcAlarmSeconds = ( rtcSeconds ) % 60;
rtcAlarmMinutes = ( ( rtcSeconds / 60 ) + rtcMinutes ) % 60;
rtcAlarmHours = ( ( ( ( rtcSeconds / 60 ) + rtcMinutes ) / 60 ) + rtcHours ) % 24;
rtcAlarmDays = ( ( ( ( ( rtcSeconds / 60 ) + rtcMinutes ) / 60 ) + rtcHours ) / 24 ) + rtcDays;
if( ( RTC_DateStruct.RTC_Year == 0 ) || ( RTC_DateStruct.RTC_Year % 4 == 0 ) )
{
if( rtcAlarmDays > DaysInMonthLeapYear[ RTC_DateStruct.RTC_Month - 1 ] )
{
rtcAlarmDays = rtcAlarmDays % DaysInMonthLeapYear[ RTC_DateStruct.RTC_Month - 1 ];
}
}
else
{
if( rtcAlarmDays > DaysInMonth[ RTC_DateStruct.RTC_Month - 1 ] )
{
rtcAlarmDays = rtcAlarmDays % DaysInMonth[ RTC_DateStruct.RTC_Month - 1 ];
}
}
}
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = rtcAlarmSeconds;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = rtcAlarmMinutes;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = rtcAlarmHours;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = ( uint8_t )rtcAlarmDays;
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_TimeStruct.RTC_H12;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_None;
RTC_SetAlarm( RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure );
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro( );
/* Enable RTC Alarm A Interrupt */
RTC_ITConfig( RTC_IT_ALRA, ENABLE );
/* Enable the Alarm A */
RTC_AlarmCmd( RTC_Alarm_A, ENABLE );
}
