Read current GPS coordinates into windows application

1

Hi, I am very new to the GPS development world and am trying to figure out how to get started with a small project. Any help will be greatly appreciated.

We have Panasonic Toughbooks (FZ-G1, CF-20) running Windows 10 with GPS modules and Sierra Skylight installed. I would like to programmatically read the current GPS coordinates into a Windows application. Can someone point me in the right direction?

Thanks,

2

Hi @schippeb

What kind of GPS module, firmware, and Skylight version are you using?

3

Hi @Donald,
Module: EM7355
firmware: SWI9X15C_05.05.16.00 r20317 carmd-fwbuild1 2014/02/06 01:23:05
Skylight: 6.0.4585.6601

Thanks,

4

Hi @schippeb

Please install the latest Skylight Build 4814 version.

You can read current GPS coordinates on Skylight. I have attached the screenshot for your reference.

image
image

You can get it here Skylight Connection Manager
Please help to tick “Solutions” if your question is answered.

5

Hi @Donald
I have installed the latest Skylight version.

As a manual approach, I could get the users to run skylight and transpose the results to my application, but I was hoping for something more integrated and automatic.

Is there a command line option for Skylight? All I really need are the longitude and latitude.

Thanks,

6

Hi @schippeb

You can use AT command to get longitude and latitude.
Configure GPS auto-start features: AT!GPSAUTOSTART=1
Return the details obtained during the most recent position location session, if available
AT!GPSLOC?

Please refer to GPS commands in AirPrime EM73xx/MC73xx AT Command Reference for more details.
You can get it here AirPrime EM73xx/MC73xx AT Command Reference

Help to tick “Solutions” if your question is answered.

7

@Donald,
Thanks for the documentation. It looks like those two commands are all that I would need. However, I can’t seem to figure out how to call them. Is there something that I am missing? Or a “Getting started” guide that I could reference?

8

Hi @schippeb

You can use Sierra Wireless Snapdragon™ X7 LTE-A WWAN Modem port for AT command.

I have attached the screenshot for your reference.
Help to tick “Solutions” if your question is answered.

image
image1106Ă—669 47.2 KB

EM7455
EM7455815Ă—670 35.3 KB

9

image
image740Ă—909 73.5 KB

Is there something that I am missing? I don’t have a Snapdragon entry in any of the Modems, Network Adapters or Ports sections of my device manager.

The only relevant entry I could find was an EM7355 in the Network Adapters, but that didn’t give the required options in the properties dialog.

Thanks,

10

Hi schippeb,

Please install the Windows Drivers for EM/MC Series Modules and then restart your PC.

You can get the driver here Windows Drivers for EM/MC Series Modules

11

Hi @Donald,
I installed the suggested driver, but it didn’t make any difference. Is there something else I can try?

Thanks,

12

Hi schippeb,

You need to run the extracted driver EXE file with USBCOMP=8 command line (USB composition) to enable COM port.

  1. Uninstalled all Sierra Wireless drivers.
  2. Installed GenericDriverSetup_Build5087.exe GenericDriverSetup_Build5087
  3. Make sure the modem was disconnected.
  4. In the Driver Packages directory run “DriverInst.exe USBCOMP=8” from an Administrator prompt.
  5. The default Generic Broadband driver is installed.
  6. Update the driver of the network adapter. Choose Driver => Have Disk => c:\Program Files(x86)\Sierra Wireless\driver package\driver\swg3kmdm00.inf
  7. “Sierra Wireless Incorporated” => “Sierra Wireless Mobile Broadband Network Adapter”

Please refer to https://zukota.com/sierra-wireless-em7455-how-to-enable-com-ports/ for more details.

Help to tick “Solutions” if your question is answered.

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