[ntp:questions] Motorola Oncore UT+ problems

Thomas Laus lausts at acm.org
Wed Nov 16 11:58:21 UTC 2011


On 2011-11-16, Miguel Gon?alves <mail at miguelgoncalves.com> wrote:
> Hi guys!
>
> Here's the problem: I have one particular Oncore UT+ receiver (2.2 firmware
> revision) that only works in mode 3, i.e., I need to reset it (losing the
> almanac) everytime I restart the NTP daemon. As you might imagine this is a
> major problem.
>
> If I don't use mode 3 it just hangs at
>
> 55881 34932.888 127.127.30.0 ONCORE[0]: Have now loaded an ALMANAC
> 55881 34932.888 127.127.30.0 ONCORE[0]: state = ONCORE_RUN
> 55881 34932.888 127.127.30.0 ONCORE[0]: SSstate = ONCORE_SS_DONE
> 55881 34932.958 127.127.30.0 ONCORE[0]: ONCORE: Detected TRAIM, TRAIM = ON
> 55881 34932.958 127.127.30.0 ONCORE[0]: Input   says TRAIM = 1
> 55881 34932.958 127.127.30.0 ONCORE[0]: Model # says TRAIM = 1
>,,,,,,
My first guess would be that you have a hardware problem with this
particular Oncore UT+.  Is your Oncore battery good?  I think that the
battery voltage measurement point is pin 1 and the ground reference is
pin 3.  Does your RS-232 cable have continuity end to end for at least
pins 1, 2, 3 and 5?  Does your Oncore receiver operate normally when
using any other programs?  The NTP Oncore reference clock driver talks
a lot during startup.  My last startup looked like this:

Nov 12 17:48:26 mail ntpd[1169]: ntpd 4.2.7p225 at 1.2483-o Thu Oct 27 20:01:41 UTC 2011 (1)
Nov 12 17:48:26 mail ntpd[1170]: proto: precision = 1.676 usec
Nov 12 17:48:26 mail ntpd[1170]: ONCORE[0]: ONCORE DRIVER -- CONFIGURING
Nov 12 17:48:26 mail ntpd[1170]: ONCORE[0]: state = ONCORE_NO_IDEA
Nov 12 17:48:26 mail ntpd[1170]: ONCORE[0]: ONCORE: Can't open SHMEM file
Nov 12 17:48:26 mail ntpd[1170]: ONCORE[0]: ONCORE: Can't open shmem
Nov 12 17:48:26 mail ntpd[1170]: ONCORE[0]: state = ONCORE_CHECK_ID
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: Oncore: Resend @@Cj
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: @@Cj
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: COPYRIGHT 1991-1997 MOTOROLA INC.
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: SFTW P/N #     98-P36848P
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: SOFTWARE VER # 2
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: SOFTWARE REV # 2
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: SOFTWARE DATE  APR 24 1998
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: MODEL #    R5122U1152
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: HWDR P/N # 5
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: SERIAL #   R09E3D
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: MANUFACTUR DATE 0H08
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]:
Nov 12 17:48:27 mail ntpd[1170]: ONCORE[0]: state = ONCORE_CHECK_CHAN
Nov 12 17:48:32 mail ntpd[1170]: ONCORE[0]: state = ONCORE_HAVE_CHAN
Nov 12 17:48:33 mail ntpd[1170]: ONCORE[0]: state = ONCORE_TEST_SENT
Nov 12 17:48:40 mail ntpd[1170]: ONCORE[0]: GPS antenna: OK
Nov 12 17:48:40 mail ntpd[1170]: ONCORE[0]: state = ONCORE_INIT
Nov 12 17:48:43 mail ntpd[1170]: ONCORE[0]: Oncore: Resend @@Cj
Nov 12 17:48:43 mail ntpd[1170]: ONCORE[0]: state = ONCORE_ALMANAC
Nov 12 17:48:52 mail ntpd[1170]: ONCORE[0]: Have now loaded an ALMANAC
Nov 12 17:48:52 mail ntpd[1170]: ONCORE[0]: state = ONCORE_RUN
Nov 12 17:48:52 mail ntpd[1170]: ONCORE[0]: SSstate = ONCORE_SS_DONE
Nov 12 17:48:52 mail ntpd[1170]: ONCORE[0]: ONCORE: Detected TRAIM, TRAIM = ON

If all else fails, remove the receiver battery for at least 30 minutes
before reinstalling.  Try another program to see if it gets any other
usable data to post on this site.  I have also posted questions to the
tapr.org timing group mailing list.  There are a lot of Oncore users
subscribed to that list.

Tom



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