Hi,
I have problem with the NMEA output from my GPS. The time stamp changes from
around 1 to 2 seconds delay which means that the PPS signal is not used. Very
few hits on Google suggest that this is normal. However the ones I do find
suggest that NMEA can't be used just because what I see, that sometimes a time
stamp is missing.
I now want to try to use the binary mode of the GPS (a Rockwell Jupiter TU30-
D140-221).
I have these two lines in /etc/ntp.conf (plus many more):
server 127.127.31.0 prefer
fudge 127.127.31.0 time1 0.4
When I start ntpd I get these two comments in /var/log/messages:
refclock_newpeer: clock type 31 invalid
configuration of 127.127.31.0 failed
I can't figure out why? Is it some option I should have used when I compiled
the ntpd?
# gpsd -l
n Generic NMEA
Delorme EarthMate (pre-2003, Zodiac chipset)
Furuno Electric GH-79L4
c MTK-3301
AIVDM
n b oncore binary
n b SiRF binary
n b SuperStarII binary
b Zodiac binary
Garmin Simple Text
The Zodiac binary in the list made me think that gpsd should work, but it
doesn't either.
There isn't any output if I try 'cgps'.
If I connect the GPS output to a terminal window, I do get garbage printed.
If I check the output with a hex-editor, it looks like I do get Message
header, word 1 and 2 as per the specification of the GPS so I think that the
output from the GPS reach my soekris in the right way.
Anyone having any suggestions?
Thanks,
Göran
___
Soekris-tech mailing list
Soekris-tech@lists.soekris.com
http://lists.soekris.com/mailman/listinfo/soekris-tech
