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Re: [gpsd-users] PPS MID 52 (0x34) working?
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-users] PPS MID 52 (0x34) working? |
Date: |
Tue, 5 Jun 2012 00:46:52 -0700 |
Yo Alexander!
On Mon, 04 Jun 2012 23:02:58 -0700
Alexander Carver <address@hidden> wrote:
> On 6/4/2012 22:27, Eric S. Raymond wrote:
> > Alexander Carver<address@hidden>:
> >> It's interesting that you say it's useless when gpsd's code turns
> >> it on at startup (unless given the -b flag):
> >
> > Gary didn't write that initializxation; I did. My reasooning was
> > that the in-band PPS message would be better than nothing if there
> > were no real PPS.
>
> I'm not sure it's actually working correctly then.
I have to agree.
> Although I do
> have a PPS signal from the GPS coming in on the DCD line, gpsd can't
> see it due to the sparc serial port driver (my PPS is currently
> brought into ntpd separately via a second serial port).
Then you are totally bypassing gpsd's PPS support. So not much we
can do to help.
> Turning off
> that message helped reduce the wander in the time stamp reported by
> gpsd over SHM(0).
Which, if the PPS is working, is totally irrelevant. If PPS is not
working I would worry about getting PPS working since it will get you
10,000x better time.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
address@hidden Tel:+1(541)382-8588
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- Re: [gpsd-users] PPS MID 52 (0x34) working?, (continued)
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Alexander Carver, 2012/06/05
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Gary E. Miller, 2012/06/05
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Alexander Carver, 2012/06/05
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Gary E. Miller, 2012/06/05
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Alexander Carver, 2012/06/06
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Chris Kuethe, 2012/06/06
- Re: [gpsd-users] PPS MID 52 (0x34) working?, Eric S. Raymond, 2012/06/06
Re: [gpsd-users] PPS MID 52 (0x34) working?, Alexander Carver, 2012/06/05