MC7710 enable GPS

[Alex Bradley]

Thanks Aleksander.

I found the last step I was missing to get NMEA output to start working
on the MC7750.

stty raw -F /dev/ttyUSB1; echo \$GPS_START >/dev/ttyUSB1


For what it's worth, I found this in the notes here:
http://linux-thinkpad.10952.n7.nabble.com/Replacing-the-Ericsson-3G-modem-in-an-X301-with-a-Sierra-Wireless-LTE-modem-td19733.html


Thanks again,
Alex


On 12/31/2013 12:43 AM, Aleksander Morgado wrote:
> Hey Alex,
>
> On Tue, Dec 31, 2013 at 2:04 AM, Alex Bradley <alex at cni.net> wrote:
>> Hey all.  Similar topic, but with an MC7750 card.
>>
>>
>> On 11/25/2013 09:13 AM, Dan Williams wrote:
>>> On Mon, 2013-11-25 at 18:44 +0400, Danilo Magat wrote:
>>>> Hi guys,
>>>>
>>>> i am not sure if this the right place to post and ask a question with
>>>> regards to the subject.
>>>> i am trying to look for a solution on how can i enable the GPS on my sierra
>>>> MC7710.
>>>> my OS is OPENWRT ive successfully configure the WWAN to connect on the
>>>> internet using
>>> If your 7710 is QMI-enabled, I'd use ModemManager or libqmi.
>>>
>>> If your 7710 is using DirectIP firmware, then you have to follow the
>>> directions in the "GPS Enabling and Disabling" section here:
>>>
>>> http://whirlpool.net.au/wiki/sierra_advanced
>>>
>>> Dan
>> I'm running libqmi 1.8 with an MC7750 on OpenWRT.    Trying to get GPS
>> NMEA output from the MC7750.  I'm not sure how to use libqmi/qmicli to
>> talk to the GPS, so I've been using AT commands to enable GPS, and
>> confirm that NMEA output is enabled.  The GPS looks like it's working,
>> but the problem is I'm not able to see any NMEA output on what should be
>> the NMEA port,  /dev/ttyUSB1.
>>
>> Any pointers on managing GPS with libqmi?
>>
> When using QMI you can use the 'PDS' service to both enable the GPS
> stack and retrieve the NMEA traces directly from within QMI messaes.
> The only issue is that the corresponding qmicli actions are not
> implemented yet... :) When I wrote the PDS support for libqmi I
> directly integrated it within ModemManager, so no qmicli work was done
> at that point.
>
> Still, you should be able to enable GPS support using AT commands, and
> also get the NMEA traces in a serial port. I don't think that using
> libqmi for connection management would prevent you from using AT to
> enable/disable GPS.
>

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