GNSS not working

mangOH Red
1

Hi,

I am trying to using mangoh red with wp7601 to get the GNSS location data, based on the function on the le_pos.api and le_gnss.api. Building app and installation is success but come out with errors.

I have check this thread with the same issue: https://forum.legato.io/t/sample-of-gnsstest-building-failed/2466, seems like he solved with update the legato firmware…

I have checked my legato firmware:
~# legato version
20.04.0_c150da6d4d58da3398f6b2f5fe2de794_modified
and my leaf package version :
mangoh-red-wp76xx_0.6.0 │ mangOH Red wp76 - FW=R13.3, Legato=20.04.0, Octave=3.0.0-pre23April2020-mangOH-0 │ latest,installed,mangOH,red,Octave,wp76xx
Looks like they are the same version 20.04.0…

Here is my code:
void gnssInitialization()
{
posCtrlRef = le_posCtrl_Request();
if (!posCtrlRef)
{
LE_ERROR(“Can’t activate the Positioning service”);
}

    }

    void gnssGet()
    {
        le_result_t res;
        
        res = le_pos_Get2DLocation(latitude, longitude, hAccuracy);
        LE_ERROR_IF((res!=LE_OK),"Can't get Positioning location");
        LE_TEST_OK((LE_OK == res) || (LE_OUT_OF_RANGE == res), "Get location");
     
        if (LE_OK == res)
        {
            printf("Position lat %ls, long %ls, hAccuracy %ls", latitude,longitude,hAccuracy);
        }
        le_posCtrl_Release(posCtrlRef);
    }

    COMPONENT_INIT
    {
        gnssInitialization();
        gnssGet();
        exit(EXIT_SUCCESS);
    }

Here are the errors:
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | supervisor[859]/supervisor T=main | proc.c proc_Start() 1403 | Starting process ‘GNSS’ with pid 13538
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | updateDaemon[873]/updateDaemon T=main | app.c app_InstallIndividual() 830 | App GNSS <2b9cd36c9eba9f325971730ef604544b> installed
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | updateDaemon[873]/updateDaemon T=main | updateDaemon.c ApplyAppUpdate() 956 | App ‘GNSS<2b9cd36c9eba9f325971730ef604544b>’ installed properly.
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | supervisor[13538]/supervisor T=main | proc.c proc_Start() 1363 | Execing ‘GNSS’
Aug 5 10:31:15 swi-mdm9x28-wp user.err Legato: =ERR= | serviceDirectory[870]/serviceDirectory T=main | serviceDirectory.c DispatchToServer() 713 | Client (uid 1029 ‘appGNSS’, pid 13538) disagrees with server (uid 0 ‘root’, pid 1593) on protocol ID of service 'GNSS.GNSSCompo
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | supervisor[859]/supervisor T=main | proc.c proc_SigChildHandler() 2079 | Process ‘GNSS’ (PID: 13538) has exited with exit code 1.
Aug 5 10:31:15 swi-mdm9x28-wp user.warn Legato: -WRN- | supervisor[859]/supervisor T=main | app.c app_SigChildHandler() 4067 | Process ‘GNSS’ in app ‘GNSS’ faulted: Ignored.
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | supervisor[859]/supervisor T=main | app.c app_StopComplete() 4764 | app ‘GNSS’ has stopped.
Aug 5 10:31:15 swi-mdm9x28-wp user.info Legato: INFO | supervisor[859]/supervisor T=main | apps.c DeactivateAppContainer() 374 | Application ‘GNSS’ has stopped.

Can anyone help me with the issue please, thanks in advance!

Zirun

2

I don’t see problem with attached application on WP76 FW R13.
You can use it.
hello6.rar (292.2 KB)

3

Hi, thanks for the reply. I will try it!

Zirun

4

Hi,

@jyijyi It works, thanks so much.

The change of my code is from:

    int32_t *hAccuracy;
    int32_t *latitude;
    int32_t *longitude;
    res = le_pos_Get2DLocation(latitude, longitude, hAccuracy);

to:

    int32_t  hAccuracy;
    int32_t  latitude;
    int32_t  longitude;
    res = le_pos_Get2DLocation(&latitude, &longitude, &hAccuracy);

Hope that helps others!