On Sun, Jun 13, 2010 at 04:21:58AM +0000, Rob Neal wrote: > On Fri, Jun 11, 2010 at 02:26:13PM -0700, apobrien wrote: > > Hello list, > > > > I have a set of proprietary hardware timing cards (Symmetricom > > bc635PCIe) which synchronize their clocks using a dedicated > > interconnect. As you might imagine the timing card conditioned time > > drifts from that of the hosts they're installed in. > > > > What I'd like to do is make the "master" timing card's time into a NTP > > reference clock then use NTP to distribute that time to the other > > hosts in the (private) network. > > > > I've looked at Orphan mode and undisciplined local clocks but they > > only refer to the host's software clock if I'm not mistaken. I've > > also searched through the archive but I'm afraid I lack the > > appropriate terminology to get meaningful results. > > > > Can someone point me toward (some google words maybe) creating an > > arbitrary NTP reference source (under Linux)? I think I'm just > > missing something very basic. > > > > I've been looking at the LinuxPPS project as these cards output a PPS > > that I might use to condition the host clock using Linux PPS but I > > don't have a 8250 serial port on these new fangled PCs. > > > > TIA! > > Andy > > > > _______________________________________________ > > questions mailing list > > questions@lists.ntp.org > > http://lists.ntp.org/listinfo/questions > Symmetricomm has a kernel mode driver for the bc635/7 cards, for Linux. > If you have a copy you can use ntp reference clock 22 (bancomm) to > feed the time to NTP > > refclock 127.127.16.u mode 2 > in the config file, where u is whatever unit your card presents as. > > The Symmetricom driver is proprietary, they charge for it, btw. > > _______________________________________________ > questions mailing list > questions@lists.ntp.org > http://lists.ntp.org/listinfo/questions
ur, refclock 16 is bancomm, not 22, sorry. 22 is the ATOM driver. Sorry for the confusion. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
