On Tue, Apr 22, 2014 at 9:57 PM, Tom Van Baak <t...@leapsecond.com> wrote:
> I have noticed skipped 1PPS on the Adafruit GPS also. I've always assumed this could happen but as a result of RF signal loss not a glitch in the gps. So I've started recording event timestamp deltas using the Linux kernel PPS interface. I read assert events (e.g. 1398449188.001000242#1741672) and compute timestamp and event deltas. If the t delta is < .9 something horrible must have happened and if it's > 1 some didn't happen assuming the event count delta is always 1. I wonder if this is a reasonable approach or if I'm being lazily optimistic. I just started (and I haven't added a join with the valid fix indicator yet) but I've had two missing pulses in the last 24 hours. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
