[LinuxPPS] Need help with setting up LinuxPPS/NTP server
Robert Jenkins
raj at jrw.co.uk
Wed Oct 8 21:56:34 CEST 2008
> -----Original Message-----
> From: linuxpps-bounces at ml.enneenne.com
> [mailto:linuxpps-bounces at ml.enneenne.com] On Behalf Of Richard Abbott
> Sent: 08 October 2008 17:53
> To: linuxpps at ml.enneenne.com
> Subject: [LinuxPPS] Need help with setting up LinuxPPS/NTP server
>
> Hello all. I am having a bit of trouble getting a system
> configured to
> pull time and PPS from my GPS unit. I think I am close but
> I'm not sure
> where the disconnect in my system or configuration is and am
> hoping that
> y'all will be able to help me.
>
........snip...
> >ntpd -g
> >ntpq -p
> remote refid st t when poll
> reach delay offset jitter
> ==============================================================
> ================
> xGPS_NMEA(0) .GPS. 0 l 17 16 376 0.000
> -641.83 72.089
> +ntp2.your.org 64.202.112.65 3 u 48 64 377 29.920
> 8.623 0.722
> *rrcs-64-183-55- .GPS. 1 u 63 64 377
> 66.258
> -2.181 1.880
> +mercury.element 128.252.19.1 2 u 33 64 377 42.065
> 6.104 1.858
> LOCAL(0) .LOCL. 10 l 40 64 377
> 0.000
> 0.000 0.001
>
......snip.....
>
> From the ntpq -p you can see that the ntp daemon says the
> GPS is being
> designated a flasticker and not being used. I do not know what is
> causing this.
>
> Any help you could provide or resources you could point me to
> would be
> appreciated.
>
> Thanks
>
> --
> --
> Richard Abbott
I was getting exactly the same result, I have rebuilt everything more times
than I want to remember and I could not get a PPS lock..
As Hal Engel suggested, there were TWO pps sources and I was using the fake
rather than the real one.
All I've done is change the symlink /dev/ppsgps0 to pps1 rather than pps0
and it's locked within a couple of minutes.
DOH!!!
Thanks Hal.
Robert Jenkins.
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