On Tue, 30 Dec 2008 00:53:00 GMT, Unruh <unruh-s...@physics.ubc.ca> wrote:
>George R. Kasica <geor...@netwrx1.com> writes: > >>On Mon, 29 Dec 2008 12:30:39 +0000, David Woolley >><da...@ex.djwhome.demon.co.uk.invalid> wrote: > >>>George R. Kasica wrote: >>> >>>> still seing both of the local GPS/PPS entries as false tickers but I >>>> also see the offsets are huge compared to other clocks...where do I go >>>> from here to correct this?? >>> >>>You are probably detecting the wrong edge (wrong polarity) of the second >>>pulse. >>So how in the world do I fix this? > >>Prior to having both NEMA and PPS running at the same time all was >>working well with just PPS and the shm driver. > >What are you using to drive the shm refclock? >Of course you can continue to use just pps-- obvioulsy something has gotten >messed up. I'm sorry I don't know how to answer that more than to say the shm program mentioned in the various docs on line and then the GPS itself on ttyS0 Here is the script run to set that up and the ntp.conf files with flags. What changes would I need to make - I'm getting pretty lost here.: ntp.conf ======== # LinuxPPS: GPS server 127.127.20.0 minpoll 4 fudge 127.127.20.0 flag3 1 flag2 0 # SHM: PPS filtered mean server 127.127.28.0 minpoll 4 fudge 127.127.28.0 refid PPS flag3 1 from a small shell script ========================= # Start shmpps and gpsd daemon cd /dev ln -s ttyS0 pps0 ln -s ttyS0 gps0 sleep 2 # Set up shmpps cd /Linux-Software/shmpps ./shmpps -d /dev/ttyS0 -s -l DCD -u 0 -c # # Start up gpsd /usr/sbin/gpsd -b -n /dev/ttyS0 _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
