G3 Sample Applications and Demos

• Select Qt -> QML File (Qt Quick 2), then click Choose….

• Name the file, set the path, then click Next.

• Add the file to your project… click Finish.

• Edit the main.qml file:

• • Double-click main.qml to open it in the editor.
  • Replace the auto-generated code with the following…

Note: Replace the width and height numbers shown with the screen resolution values of your G3 module.

• Create a QRC file:
  • Right-click the project folder and select Add New.

• Select Qt -> Qt Resource File, then click Choose….

• • Name the file, set the path then click Next.
    

    

  • Add the file to your project… click Finish.
    

    

• Set the qml.qrc file properties:
  • Click Add Prefix, and enter a “/” character in the Prefix: text box.
    

    

  • Click Add Files, pick your main.qml file, then click Open.
    

    

• Edit the main.cpp file:
  • Double-click main.cpp to open it in the editor.
  • Replace the auto-generated code with the following…
    

    

• Edit the Hello.pro project file:
  • Double-click “Hello.pro” to open it in the editor.
  • Replace the auto-generated code with the following…
    

    

Deploy the Project to the G3 Module

• In the VM, open a Terminal to the G3 module using picocom:
  • Open a terminal window.
  • Enter the command ls -l /dev/ttyU*.

Assuming you set the USB Device Filters correctly when you installed the VM, you should see /dev/ttyUSB0 and /dev/ttyUSB1 in the output. These are the “COM” ports used to communicate with the G3 module.

• • Enter picocom -b 115200 /dev/ttyUSB0.
  • After picocom displays “Terminal ready”, press .
  • If you now see a login prompt, you’re on the correct port for the Debug Interface.If not:
    • Open a second terminal window.
    • Enter picocom -b 115200 /dev/ttyUSB1.
    • After picocom displays “Terminal ready”, press .
    • If you now see a login prompt, you’re on the correct port for the Debug Interface.
  • Log in as root. There is no password.
• Stop the currently running user application or demo… if one is running:
  • Enter /etc/init.d/user_app stop
  • Note: It is not harmful to run this command even if no user application or demo is running.
• Determine the IP address of the module:
  • Enter ifconfig to display your system’s network interface information. The IP address you need is for interface eth0 if using Ethernet, and wlan0 if using WiFi. The IP address value will look something like “192.168.1.2” but yours will likely be different.

• Set the IP address of the target (the G3 module) in Qt Creator:
  • Go to Tools -> Options.
    

    

  • Open the Devices tab.
  • Enter the IP address for eth0 in the Host name text box.
    

    

  • Click Apply then click OK.
• Run the project:
  • Click on the little terminal icon near the bottom of the left side toolbar to enter Deploy mode and verify that Yocto -> Release is selected.
    

    

  • Click Run (green arrow) to build and deploy the project to the G3 module.
    

    

  • You should now see “Hello World!” on the G3 module.