[time-nuts] Thunderbolt GPS rollover

Mike S mikes at flatsurface.com
Fri Jun 8 00:50:11 UTC 2012


On 6/7/2012 8:02 PM, Bob Camp wrote:
> One could put in a routine that looks at the date the software was
> written and "fix" any date that shows up as being in the past.

After all the issues seen after the last rollover, I'd think receivers 
would have been made robust against this.

One obvious method would be to keep a checkpoint date (or 1024 week 
cycle # + week offset) in EEPROM. To avoid issues with using up EEPROM 
r/w cycles, only update it anytime the currently received date is more 
than a year beyond the currently stored date.




More information about the Time-nuts_lists.febo.com mailing list