WP7609 – Network disconnect after installing application via mkapp

IoT Modules
1

Hello,

I am currently using the WP7609 module.

After building an application with the following command:

mkapp -t wp76xx app.adef

and installing it on the WP7609 using:

app install app.wp76xx.update 192.168.2.2

the wireless network connection gets disconnected.
I tried reconnecting using:

cm data connect

However, while the application is running, the connection disconnects again.
Even after restarting the WP7609, the wireless network remains disconnected.

  • adef file
sandboxed: false
start: auto
maxFileSystemBytes: 110000K
maxMemoryBytes: 110000K
maxMQueueBytes: 110000K

executables:
{
    app_exe = ( appComponent )
}

processes:
{
    envVars:
    {
        LE_LOG_LEVEL = INFO
    }

    run:
    {
        ( app_exe )
    }

    faultAction: restart
    watchdogAction: restart

    maxCoreDumpFileBytes: 110000K
    maxFileBytes: 110000K
    maxLockedMemoryBytes: 110000K
}

requires:
{
    device:
    {
        [rw] /dev/ttyAT /dev/ttyAT
    }
}

bindings:
{
    app_exe.appComponent.le_led_r    -> <root>.le_gpioPin32
    app_exe.appComponent.le_led_g    -> <root>.le_gpioPin33
    app_exe.appComponent.le_led_b    -> <root>.le_gpioPin42
    app_exe.appComponent.le_gnss     -> positioningService.le_gnss
    app_exe.appComponent.le_spi      -> spiService.le_spi
    app_exe.appComponent.le_sim      -> modemService.le_sim
    app_exe.appComponent.le_mrc      -> modemService.le_mrc
    app_exe.appComponent.le_atClient -> atService.le_atClient
}
  • Component.cdef
sources:
{
    ...
}

cflags:
{
    -g -O0
    -I$CURDIR/include
}

requires:
{
    api:
    {
        le_led_r    = $LEGATO_API/interfaces/le_gpio.api
        le_led_g    = $LEGATO_API/interfaces/le_gpio.api
        le_led_b    = $LEGATO_API/interfaces/le_gpio.api
        le_gnss     = $LEGATO_API/interfaces/positioning/le_gnss.api
        le_spi      = $LEGATO_API/interfaces/le_spi.api
        le_sim      = $LEGATO_API/interfaces/modemServices/le_sim.api
        le_mrc      = $LEGATO_API/interfaces/modemServices/le_mrc.api
        le_atClient = $LEGATO_API/interfaces/atServices/le_atClient.api
    }
}
  • Question
    • Why does the network disconnect after installing and running this application?
    • Is there any configuration or permission issue in the adef file that could cause this?
    • Are there known issues when using le_mrc, le_sim, or le_atClient that could impact the data connection?

Any help or guidance would be appreciated.

Thank you.

2

if no additional legato application being run, does the “cm data connect” work?

3

Yes, when no additional Legato application is running,
“cm data connect” works normally and the data connection is maintained.

However, when the application is installed and running,
the connection gets disconnected.

4

i would suggest you to run the sample application modemDemo to see if there is any issue on data connection:

BTW, which firmware version are you using?

5

I am using swi-wp76_5.0.6 SDK for development.

6

OK, that is for FW R16.3