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Linux/AM5728: Displaying Qt applications on LCD

Arpita Jena
Expert 1055 points

Part Number: AM5728

Tool/software: Linux

Hi

I have installed Linux SDK 5.00.00.15v for AM57xx EVM and using Ubuntu 16.04.

Linux SDK installed directory is : /opt/ti_linux_SDK

Qt Installed Directory is : home/ubuntu/Qt

My doubt is to display the example application(like @TargetNFS/usr/share/qt5/examples/opegl/cube) output on LCD, what are the steps need to be followed ?

In which files I have to make changes ?

And to display different application images in LCD1 and LCD2 what changes I have to do and where?

Please help me finding these answers.

Thanks and Regards

Arpita

Thanks

  • 0
    TI__Mastermind 22946 points

    Hi Arpita,

    Any application that you want to run needs to be sitting in some location in NFS directory. Where you build that application is your choice, just make sure that environment variables are sourced from linux-devkit/environment-setup. You may find these links helpful -

    Are you needing wayland manager for your application or are you needing to run the application in full screen mode. If you want to use wayland windows manager, then to run two applications on two different LCD screen, you will need to work with IVI shell. The documentation on "Graphics and Display" has information on how to configure ivi shell. If you want to run the application in full screen mode, then you many want to check video-graphics-test example application in Processor SDK Linux package. It uses elgfs_kms QPA. QPA is enhanced by TI to support advance feature of Display Subsystem IP on AM57x device.   

    If you do not want to use wayland/weston manager, then stop weston before running QT application -

    #/etc/init.d/weston stop

    #/usr/share/qt5/examples/opengl/cube/cube -platform eglfs

  • 0 in reply to Manisha Agrawal
    Expert 1055 points

    Thank you Manisha.

    This is helpful for me...I will get back if I face any difficulty further.

    Regards

    Arpita