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no edit summary
See [[#Debug Options]] levels for more information on how this works.
See [[#Debug Options]] levels for more information on how this works.
==Trimble Debug Status Decoding==
The VOTER/RTCM when in TSIP mode (Trimble), assumes it is a Trimble Thunderbolt and is looking for two packets:
*0x8F-AB - Primary Timing Packet
*0x8F-AC - Supplemental Timing Packet
Grab a copy of the Thunderbolt User Guide: http://leapsecond.com/pages/tbolt/Thunderbolt-2012-02.pdf
Pages 78-83 are the important ones.
Packet 0x8F-AB is what grabs the timing information, and packet 0x8F-AC is what it looks at for everything else (including debug).
The debug string that the VOTER/RTCM reports:
<pre>
printf("GPS-DEBUG: TSIP: ok %d, 9 - 14: %02x %02x %02x %02x %02x %02x\n",
happy,gps_buf[9],gps_buf[10],gps_buf[11],gps_buf[12],gps_buf[13],gps_buf[14]);
</pre>
So, the 1 after ok is the "happy gps" flag. The other 5 bytes are supposed to be bytes 9-14 from the packet... sort of. They are bytes 9-14 of the buffer, but they are actually bytes 8-13 of the binary message.
Looking at the message structure, bytes 8-13 are:
*8-9 Critical Alarms
*10-11 Minor Alarms
*12 GPS Decoding Status
*13 Disciplining Activity
Therefore, the messages you are seeing break down as follows:
<pre>
GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 - everything is good in the 'hood, Doing Fixes, Phase Locking
GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 18 08 06 - not happy, Not Tracking Satellites, Not Disciplining Oscillator (0x18 --> 0b000000011000), No Usable Sats, Inactive
GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 08 08 05 - not happy, Not Tracking Satellites, No Useable Sats, Compensating OXCO (holdover)
GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 00 00 05 - not happy, Compensating OXCO (holdover)
GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 - happy, Recovery Mode
GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 00 00 04 - not happy, Initializing Loop Filter
</pre>
The GPS is flagged as NOT HAPPY in TSIP mode if ANY of the following are TRUE:
*If GPS Decoding Status is anything other than "Doing Fixes".
*If Disciplining Activity is not Phase Locking or Recovery Mode.
*Any Critical Alarms.
*Any Minor Alarms.