12
1.
Write system time to RTC
This option will copy the time from your Raspberry Pi system to the Realtime Clock on Witty Pi.
This option should be used when you find the Raspberry Pi system time is correct (may be
synchronized from the Internet) and yet the RTC time is not.
2.
Write RTC time to system
This option will copy the time from the Realtime Clock on Witty Pi 3 to your Raspberry Pi system.
This option should be used when you find the RTC time is correct while the system time is not.
3.
Synchronize time
If you choose this option, it will run the “syncTime.sh” script explicitly, which should have been
executed once after the system is up.
This script will detect if Internet is connected, and apply network time to both system and RTC. The
Start
RTC time
is good?
Y
N
Write RTC time
to system
Internet
connected?
Force network
time update to
system
Write system time
to RTC
System time
is newer than
RTC?
Y
Y
End
N
N
