On 2012-02-21, Alby VA <[email protected]> wrote: > > David: > > With your Sure GPS showing "PPS Clock Discipline", what does your > ntp.conf file look like? I ask, because if I list == server > 127.127.22.0 == > I don't get anything (even though I did the soldering per > http://www.satsignal.eu/ntp/Sure-GPS.htm > > But when I list == server 127.127.20.0 == is works just fine. I also > have > a link of ln -s /dev/cuau0 /dev/pps0 and ln -s /dev/cuau0 /dev/gps0
??? the format of pps0 output is nothing like the format of the output of the serial port as far as I know. If you are going to use pps, you have to set up your serial port to run interrupts and to report those interrupts. On linux, you have to load the modules pps_core and pps_ldisc and then link the serial port dcd line to the pps_ldisc using ldattach 18. That creates a pps0 device in /dev and in /sys/class/pps/pps0/. I suspect similar things are needed in bsd. Ie, It is NOT sufficient to simply wire up the sure board, plug it in and run the atom driver. You also have to tell you system to timestamp and report its serial line interrupts. > Is that similar to your setup? > > Thanks, > > NOTES: >====== > godzilla# ntpq -c clockvar > assID=0 status=0000 clk_okay, last_clk_okay, > device="NMEA GPS Clock", > timecode="$GPGGA,144531.000,3903.1142,N,07729.1024,W, > 1,6,1.52,111.2,M,-33.4,M,,*61", > poll=3053, noreply=0, badformat=0, baddata=0, fudgetime1=0.000, > stratum=0, refid=GPS, flags=5 > godzilla# > > > > > > > > On Feb 20, 6:59?am, David Lord <[email protected]> wrote: >> >> This is from my system with Sure GPS. >> >> Seems to be similar to yours. I don't have a clue as to stratum and >> refid as this is first time I've used ntpq clockvar. >> >> associd=0 status=00f1 , 15 events, clk_no_reply, >> device="PPS Clock Discipline", timecode=, poll=96503, noreply=300, >> badformat=o, baddata=0, fudgetime1=0.000, stratum=16,refid=80.80.83.98, >> flags=4 >> >> associd=0 status=0119 leap_none, sync_pps, 1 event, leap_armed, >> version="ntpd [email protected] Tue Dec 27 09:47:55 UTC 2011 (1)", >> processor="i386", system="NetBSD/5.1_STABLE", leap=00, stratum=1, >> precision=-18, rootdelay=0.000, rootdisp=0.315, refid=PPSb, >> reftime=d2ecad51.c7c9dc25 ?Mon, Feb 20 2012 11:30:25.780, >> clock=d2ecad57.2e21ead2 ?Mon, Feb 20 2012 11:30:31.180, peer=65276, tc=4, >> mintc=3, offset=0.000, frequency=-35.663, sys_jitter=0.004, >> clk_jitter=0.003, clk_wander=0.006, tai=34, leapsec=201207010000, >> expire=201212280000 >> >> David > _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
