Thanks, this is working indeed, but should i get good results (like, not
more than a few of micros from my gps time) with these settings ?

Right now it is locking on PPS (*) but my clock seem worse (offset to utc)
than when using only the ntp server as source.


2017-08-24 17:38 GMT+02:00 Miroslav Lichvar <mlich...@redhat.com>:

> On Thu, Aug 24, 2017 at 05:18:08PM +0200, Thibaut BEYLER wrote:
> > I'm trying to synchronise chrony with a pps signal coming from a bnc
> output
> > on a gps timeserver.
> >
> > The pulses seems to arrive properly according to ppstest, but i don't
> > figure out how to combine this pulse with a ntp time source to complete
> the
> > samples (according to the documentation, it seems to be possible)
> >
> > All the exemples i see on the Internet use NMEA (which i don't think I
> have
> > out of my pps output) or another reference clock, any way to do that ?
>
> The lock option can work only with other reference clocks. With an NTP
> source you wouldn't specify the option, e.g.
>
> server foo.example.com iburst
> refclock PPS /dev/pps0
>
> After start, chronyd will synchronize the clock to the NTP server.
> This will allow the PPS refclock to complete the pulses and then it
> can take over as the main time source for synchronization of the
> system clock.
>
> --
> Miroslav Lichvar
>
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