Re: [gpsd-users] gpsd mode "update not seen yet" when using 1PPS

[Eric S. Raymond]

Yakov Shmulevich <address@hidden>:
> I am working with GPS module through FT2232H with 1PPS on DCD pin.
> I am getting GPS data via shared memory export supported by libgps and try
> to get GPS data every ~1.5 sec.
> But sometimes I get "update not seen yet" in gpsdata.fix.mode.
> If I disconnect the DCD pin (connect it to 3.3V) from 1PPS, the problem
> disappear.
> What may be a reason for such behavior?
> Can it be corresponding to 1PPS polarity positive or negative (I use
> positive)?

That is a very weird bug report.

I have no real idea what's going on here, but we need to figure it out.
It sounds as though the handling of PPS is somehow triggering a call to
gps_clear_fix().

What GPS are you using?
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>