[ntp:questions] Slow convergence of NTP with GPS/PPS

Hal Murray hal-usenet at ip-64-139-1-69.sjc.megapath.net
Tue Oct 28 19:25:43 UTC 2008


>Ie, you have to sanity check the PPS to make sure that what you think is
>correct, really IS correct. 

It's even worse than that.  When the PPS ticks, you know you
are on a second boundary, but you don't know which second.
You have to get the second from someplace else, perhaps by
parsing the NMEA messages or whatever your GPS device uses.

-- 
These are my opinions, not necessarily my employer's.  I hate spam.




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