Re: [chrony-users] Keeping time with a GPS

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On Fri, Jul 23, 2010 at 10:41:31AM -0400, Marc Leclerc wrote:
> Hi,
> 
> I have been trying to use ntp to keep precise time on my arm-linux
> embedded device using a Trimble resolution SMT GPS module which
> includes a PPS output and do not feel I got pretty far, actually ntp
> sees the two data it gets (UTC time & PPS) to be out of sync and
> eventualy tags them both as bad clock. I thruly need as best
> accuracy I can get. Does anyone think I could get better luck and
> help with chrony.

If the GPS module is supported by gpsd, you can try it with the SHM
refclock driver.

I posted recently a chrony+gpsd+LinuxPPS howto here:
http://ml.enneenne.com/pipermail/linuxpps/2010-June/003894.html

-- 
Miroslav Lichvar

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