Supreme 20 + IESM GPS+USB+IO : GPS not working


#1

Hello,

Sorry if my question is stupid, I’m a newbie…
I’ve received my Supreme 20 and the IESM GPS+USB+IO module, and I’ve installed everything.
Then, I’ve started the modem, and using the document IESM GPS+USB+IO User Guide, I’ve started sending commands to the modem :
AT+WCFM=5
+WCFM: 00000030,0
This should indicate that the GPS functionnality is present.
AT+WOPEN=1
OK
AT+NMEA=1
ERROR

Reading this forum, it seems that some people are downloading code to the modem. But, from the doc.,
it says that AT+WOPEN=1 does activate the C-GPS sample code.

What am I missing ? All I want is to receive NMEA GPS information on the serial port that I’m using to send the AT commands to the modem.
I’ve downloaded :
Wavecom Open AT Software Suite 2.12.exe
Open_AT_C-GPS_Plug_In_v3.04.exe
Open_AT_C-GPS_Plug_In_v1.07.exe
but I can’t find any dwl with “GPS” in the name… and even if I found one, I have no idea on how to download it to the modem.

Could someone provide some help on how to start the GPS ?

Thanks in advance,
Paul


#2

What “doc” is that?

AT+WOPEN=1 will activate whatever Open-AT application is currently present within the unit - it is not specific to any “C-GPS sample code”.


#3

It is : IESM GPS+USB+IO User Guide.pdf which can be found in the Download section.

I understand that. But I had the impression that the modem and the module were delivered with a GPS code that AT+WOPEN=1
would activate automatically, without having to download anything to the module, if the answer to :
AT+WCFM=5
didn’t contain 00000031, as indicated in the doc (still the same), page 3.

Am I missing something obvious ? Do I have to download some piece of code to the modem/module to receive NMEA from the GPS ? If so, is there one that I can use in the SDK and other download stuff on Wavecom web site ?

Regards,
Paul


#4

You need to check that with your supplier - only they will know precisely what they delivered to you!

And they should be able to support you in getting it working…