[LinuxPPS] ntpd configuration with local clock and pps

Folkert van Heusden folkert at vanheusden.com
Tue May 26 11:44:44 CEST 2009


Yes, use the atom driver.

On Tue, May 26, 2009 at 09:15:09AM +0300, Harun Alasar wrote:
> But I don't have a NMEA source.. I want to use only local system clock and a
> pps source to synchronize time. Is it possible ?
> 
> On Fri, May 15, 2009 at 6:43 PM, Udo van den Heuvel <udovdh at xs4all.nl>wrote:
> 
> > Harun Alasar wrote:
> >
> >> I also added some printfs to ntpd source(only refclock_atom.c) for
> >> debugging and verified that ntpd can open the device and fetch data from it.
> >> But ntpq> associations command says that pps source is rejected by ntpd.
> >> What could be the reason for that ? Thank you.
> >>
> >
> > How does ntpd know what timestamp belongs to the pps?
> > Add NMEA, at least.
> >

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Folkert van Heusden

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