It shouldn't be forgot that the RTC can only be set and read with a granularity of seconds only. The 11-minute scheme doesn't synchronize the RTC to the exact second and when read, even waiting for up to a second for the read to change, it lacks accuracy. All this in addition to thermal drifting of the reference crystal frequency.
The bottom line is that the RTC is just a little better than inputing the time manually whenever the system comes up. Of course, this is fine if time synchronization and discipline is soon taken over by NTP. HTH _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
