Hi,
I’ve bought some MC7304 modems, and with one off them I’ve a problem enabling GPS data gathering. I’m using ModemManger 1.6.2 which uses (QMI) over usb.
Here’s the response: I intentionally removed the FULL IMEI.
What i’ve discovered after running this command on diffrent modems i have is diffrent answer +GCAP,
On modems which work fine the answer is:
+GCAP: +CGSM,+DS,+ES
Thanks for your reply,
I’ve enabled gps, and it gave Ok status.
But modem doesn’t send any NMEA data nor shows location-position. Is it possible, that there’s no GPS modem in MC7304? Or there’s sth more to configure?
AT!GPSSTATUS?
Current time: 2016 11 07 0 13:26:18
2016 11 07 0 13:25:10 Last Fix Status = FAIL, FAILCODE = 43947
2016 11 07 0 13:25:10 Fix Session Status = FAIL, FAILCODE = 43947
AT!ENTERCND="A710"
OK
AT!CUSTOM="GPSENABLE",1
OK
AT!CUSTOM="GPSSEL",0
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:18:08
2016 11 07 0 13:25:10 Last Fix Status = FAIL, FAILCODE = 43947
2016 11 07 0 13:25:10 Fix Session Status = FAIL, FAILCODE = 43947
No TTFF available
OK
AT!GRESET
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:26:51
2016 11 08 1 06:26:51 Last Fix Status = NONE
2016 11 08 1 06:26:51 Fix Session Status = NONE
No TTFF available
OK
AT!ENTERCND="A710"
OK
AT!GPSTRACK=1,255,1000,30,1
ErrCode = 17
OK
AT!GPSAUTOSTART=1,1,180,100,1
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:31:05
2016 11 08 1 06:31:05 Last Fix Status = NONE
2016 11 08 1 06:31:05 Fix Session Status = NONE
No TTFF available
AT!GRESET
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:31:05
2016 11 08 1 06:31:05 Last Fix Status = NONE
2016 11 08 1 06:31:05 Fix Session Status = NONE
No TTFF available
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:35:04
2016 11 08 1 06:35:04 Last Fix Status = NONE
2016 11 08 1 06:35:04 Fix Session Status = NONE
No TTFF available
OK
AT!ENTERCND="A710"
AT!CUSTOM?
!CUSTOM:
GPIOSARENABLE 0x01
GPSENABLE 0x01
GPSLPM 0x01
NMEAENABLE 0x01
GOBIIMEN 0x01
USBSERIALENABLE 0x02
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:36:35
2016 11 08 1 06:36:35 Last Fix Status = NONE
2016 11 08 1 06:36:35 Fix Session Status = NONE
No TTFF available
OK
AT!GPSTRACK=1,255,1000,1000,1
ErrCode = 17
OK
AT!GPSSTATUS?
Current time: 2016 11 08 1 06:43:51
2016 11 08 1 06:43:51 Last Fix Status = NONE
2016 11 08 1 06:43:51 Fix Session Status = NONE
No TTFF available
OK
Second step is to setup GNSS subsystem working mode. More clear, to enable the set of available modes. I’d suggest you to enable, for the first time, all of supported modes (according to documentation), i.e.
AT!GPSPOSMODE=7F
Next step is to select a proper GNSS antenna connector. If you have an active antenna, you should connect it to dedicated “GPS” connector and enable antenna power supply with
AT+WANT=1
For passive antenna, connected to “GPS”, power supply, of course, should be disabled:
AT+WANT=0
But if you choose a combined, shared DRX/GNSS antenna and “AUX” connector, you have to switch GNSS RF path with