Re: [gpsd-dev] The attempt to use VTIME has been removed

[Hal Murray]

>> $GPRMC,233343.000,A,3726.0801,N,12212.2637,W,0.12,10.28,310115,,*23
>> $GPRMC,233344.000,A,3726.0801,N,12212.2637,W,0.12,44.24,310115,,*29
>> $GPRMC,233345.000,A,3726.0800,N,12212.2638,W,0.14,93.67,310115,,*2D
>> $GPRMC,233348.000,A,3726.0800,N,12212.2638,W,0.27,56.55,310115,,*28
>> $GPRMC,233351.000,A,3726.0801,N,12212.2637,W,0.30,31.00,310115,,*29

> I don't know how this demonstrates data loss.  Explain?

Look at the time stamps: 43, 44, 45, 48, 51
Looks like 46, 47, and 49, 50 got lost.


>> No PPS info on gpsmon screen or log files.  I see PPS via SHM so the PPS 
info
>> is getting into gpsd.  ntpd/JSON has timings close to SHM/PPS rather than 
>> SHM/Serial so I assume the PPS info is in the JSON stream.

> I'm seeing PPS bars here from a Macx-1.

Weird.  I'll poke around some more.

The PPS bar in the log file is invented by gpsmon, right?

I simplified it to only one GPS device which has PPS.  Still nothing in 
gpsmon.

gpspipe -w is giving random "Terminated"
It works on another system without PPS.

address@hidden work]$ ./gpspipe -w
{"class":"VERSION","release":"3.12~dev","rev":"2015-01-31T14:56:14.28","proto_
major":3,"proto_minor":10}
{"class":"DEVICES","devices":[{"class":"DEVICE","path":"/dev/gps0","driver":"N
MEA0183","activated":"2015-02-01T01:13:22.792Z","flags":1,"native":0,"bps":480
0,"parity":"N","stopbits":1,"cycle":1.00}]}
{"class":"WATCH","enable":true,"json":true,"nmea":false,"raw":0,"scaled":false
,"timing":false,"split24":false}
{"class":"TPV","device":"/dev/gps0","mode":3,"time":"2015-02-01T01:13:23.000Z"
,"ept":0.005,"lat":37.434786667,"lon":-122.204338333,"alt":21.500,"epx":10.825
,"epy":14.348,"epv":43.700,"track":309.5400,"speed":0.015,"climb":0.700,"eps":
28.70,"epc":87.40}
Terminated
address@hidden work]$ 

Sometimes it works for several seconds and shows PPS lines.

...
{"class":"PPS","device":"/dev/gps0","real_sec":1422753393, 
"real_nsec":0,"clock_sec":1422753393,"clock_nsec":29826}
{"class":"TPV","device":"/dev/gps0","mode":3,"time":"2015-02-01T01:16:33.000Z"
,"ept":0.005,"lat":37.434760000,"lon":-122.204355000,"alt":13.800,"epx":10.825
,"epy":14.348,"epv":43.700,"track":193.3700,"speed":0.334,"climb":1.300,"eps":
28.70,"epc":87.40}
{"class":"PPS","device":"/dev/gps0","real_sec":1422753394, 
"real_nsec":0,"clock_sec":1422753394,"clock_nsec":34716}
Terminated
address@hidden work]$ 


-- 
These are my opinions.  I hate spam.