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Re: [gpsd-users] Uncertain system time
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From: |
Gary E. Miller |
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Subject: |
Re: [gpsd-users] Uncertain system time |
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Date: |
Tue, 1 Oct 2019 12:17:36 -0700 |
Yo Massimiliano!
On Tue, 1 Oct 2019 21:09:23 +0200
Massimiliano Fago <address@hidden> wrote:
> > Good. Have you confirmed that your RTC is used on boot?
> yes, on boot I have the correct time
Good.
> > What versions of gpsd and ntpd? There was a recent bug in git head,
> > maybe in 3.19, that did that.
> my version is:
> gpsd: 3.19-dev (revision dev-3.19a-770-gde7a1c4c)
>
> is it ok?
That is a bit old. Can you try 3.19.1~dev? I suspect you hit the bug.
> One more question:
>
> what is the difference between
>
> 127.127.28.1 server and 127.127.28.2 server?
The .1 is time from NMEA (course). The .2 is the time from PPS (fine).
I prefer the newer syntax:
# local PPS (gpsd)
refclock shm unit 1 minpoll 4 maxpoll 4 refid PPS flag4 1 prefer
# local NMEA (gpsd)
refclock shm unit 0 time1 -0.0900 refid GPS flag4 1 noselect
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
Veritas liberabit vos. -- Quid est veritas?
"If you can't measure it, you can't improve it." - Lord Kelvin
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