[ntp:questions] Re: beginner needs help with gps nmea setup and pps
Ronan Flood
ronan at noc.ulcc.ac.uk
Fri Feb 11 23:21:03 UTC 2005
ramb at sonic.net wrote:
> I'm getting started with NTP and am having some trouble setting it up.
First question: what version of ntpd are you running?
It should log this at startup. It's important to know
this as the behaviour of different versions can vary.
> Is there a difference between these two pps things? I have a gps receiver
> that has a pps output. I want to set up an NTP server that is talking to
> the gps receiver and uses the pps output as well.
>
> I think I've enabled the PPS output of my GPS receiver.
>
> Is this enough for /etc/ntp.conf?
>
> enable stats monitor pps
> server 127.127.20.1
> server 127.127.22.0
> logconfig +clockall
When using driver 20 (refclock_nmea), I don't think you
need driver 22 (refclock_atom) -- the NMEA driver can
deal with PPS directly itself if you have the PPASPI.
Try removing "server 127.127.22.0".
--
Ronan Flood <R.Flood at noc.ulcc.ac.uk>
working for but not speaking for
Network Services, University of London Computer Centre
(which means: don't bother ULCC if I've said something you don't like)
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