Windows 7 32bit mobile data terminals, and everything we have seen is that the MC7355 devices in our mobiles has GNSS capability. The units show NMEA ports assigned to the Sierra devices, but we continue to receive bad sentence data.
Using an OEM driver version MC7355 Build4093. Several GPS clients reporting errors on several devices, so I am hoping someone may see something obvious in the following simple gpsd test, or could recommend a better test to find more debug information.
Startup:
gpsd daemon
$ gpsd -b -N -D 2 /dev/com5
gpsd: launching (Version 2.37)
gpsd: listening on port 2947
gpsd: running with effective group ID 197121
gpsd: running with effective user ID 197619
gpsd: opening read-only GPS data source at ‘/dev/com5’
gpsd: speed 4800, 8N1
gpsd: garmin_gps not active.
gpsd: gpsd_activate(0): opened GPS (4)
gpsd: ntpd_link_activate: 0
gpsd: closing GPS=/dev/com5 (4)
gpsd: client 127.0.0.1 (0) connect on fd 4
gpsd: opening read-only GPS data source at ‘/dev/com5’
gpsd: speed 4800, 8N1
gpsd: garmin_gps not active.
gpsd: gpsd_activate(1): opened GPS (5)
gpsd: => GPS: $PSRF100,0,4800,8,1,00F\x0d\x0a FAILED
gpsd: => GPS: $PGRMCE0E\x0d\x0a FAILED
gpsd: => GPS: $PFEC,GPint58\x0d\x0a FAILED
gpsd: => GPS: $PFST11\x0d\x0a FAILED
gpsd: => GPS: $PFEC,GPsrq5B\x0d\x0a FAILED
gpsd: => GPS: $PASHQ,RID28\x0d\x0a FAILED
gpsd: unknown sentence: “$PQXFI,*56\x0d\x0a”
gpsd: unknown sentence: “$PQXFI,*56\x0d\x0a”
gpsd: unknown sentence: “$PQXFI,*56\x0d\x0a”
gpsd: detaching 127.0.0.1 (sub0, fd 4) in detach_client
gpsd: closing GPS=/dev/com5 (5)
NMEA output from GPSD:
c:\cygwin\bin>gpspipe.exe -w
GPSD,F=/dev/com5
GPSD,X=1429808620.458346,I=Generic NMEA
GPSD,W=1
GPSD,O=?
GPSD,O=?
GPSD,O=?
GPSD,O=?
Regards