TimerTime_t RtcGetTimerValue( void )
{
TimerTime_t retVal = 0;
retVal = RtcConvertCalendarTickToTimerTime( NULL );
RtcConvertTickToMs( retVal );
return( RtcConvertTickToMs( retVal ) );
}
TimerTime_t RtcGetElapsedAlarmTime( void )
{
TimerTime_t currentTime = 0;
TimerTime_t contextTime = 0;
currentTime = RtcConvertCalendarTickToTimerTime( NULL );
contextTime = RtcConvertCalendarTickToTimerTime( &RtcCalendarContext );
if( currentTime < contextTime )
{
return( currentTime + ( 0xFFFFFFFF - contextTime ) );
}
else
{
return( currentTime - contextTime );
}
}
TimerTime_t RtcComputeElapsedTime( TimerTime_t eventInTime )
{
TimerTime_t elapsedTime = 0;
// Needed at boot, cannot compute with 0 or elapsed time will be equal to current time
if( eventInTime == 0 )
{
return 0;
}
elapsedTime = RtcConvertCalendarTickToTimerTime( NULL );
if( elapsedTime < eventInTime )
{ // roll over of the counter
return( elapsedTime + ( 0xFFFFFFFF - eventInTime ) );
}
else
{
return( elapsedTime - eventInTime );
}
}
TimerTime_t RtcComputeElapsedTime( TimerTime_t eventInTime )
{
TimerTime_t elapsedTime = 0;
// Needed at boot, cannot compute with 0 or elapsed time will be equal to current time
if( eventInTime == 0 )
{
return 0;
}
// first get the current value of the timer in tick
elapsedTime = RtcConvertCalendarTickToTimerTime( NULL );
// convert into ms
elapsedTime = RtcConvertTickToMs( elapsedTime );
// compare "eventInTime" with "elapsedTime" while watching for roll over due to 32-bit
if( elapsedTime < eventInTime ) // // roll over of the counter
{ // due to convertion tick to ms, roll over value is 0x7D000000 (0x7D000000 * 2.048 = 0xFFFFFFFF)
return( elapsedTime + ( 0x7D000000 - eventInTime ) );
}
else
{
return( elapsedTime - eventInTime );
}
}
TimerTime_t RtcGetTimerValue( void )
{
return( RtcConvertCalendarTickToTimerTime( NULL ) );
}
