[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3 |
Date: |
Mon, 25 Apr 2016 10:22:29 -0700 |
Yo Eric!
On Mon, 25 Apr 2016 09:30:28 -0400
"Eric S. Raymond" <address@hidden> wrote:
> > There are two cases of "no PPS". One is that nothing is wired to
> > that pin.
>
> Right. We know this isn't the problem as ppstest can see RFC2783
> events through .dev/pps0
Well, ppstest is not gpsd, so not exactly QED.
> > The other is that everything is wired up correctly, but the GPS
> > device is smart enough to mask off the PPS when it isn't valid, for
> > example when first powered on and it isn't listening to any
> > satellites yet.
>
> I can see by the blinkenlight that the HAT has a fix.
Even if the GPS has a fix, gpsd has to know that so as not to block the PPS.
> > working. Did rain or whatever cause the number of satellites the
> > receiver can hear to fall too low, or did the cable get unplugged?
>
> No, I can check that by seeing fixes with gpsmon.
Good.
> Currently leaning towards the theory that there's a previously
> undiagnosed race conedition in /de/pps opening.
The 0666 test shoulda resolved that in moments.
When you are running gpsd, what does ntpshmon tell you?
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
pgpxDspGGqaYe.pgp
Description: OpenPGP digital signature
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, (continued)
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Gary E. Miller, 2016/04/24
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Oliver Jowett, 2016/04/24
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Hal Murray, 2016/04/23
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Gary E. Miller, 2016/04/23
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Hal Murray, 2016/04/23
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Hal Murray, 2016/04/23
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Eric S. Raymond, 2016/04/25
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3,
Gary E. Miller <=
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Hal Murray, 2016/04/25
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Gary E. Miller, 2016/04/25
- Re: [gpsd-dev] PPS not showing in gpsmon/gpsd on RPi 3, Fred Wright, 2016/04/28