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c6a816x or dm8168 composite output

Hokyun Yu
Intellectual 530 points

hi,

I want to test for composite video output on c6a8168 evm.

default output is hdmi, Is it possible to change to composite output?

I read many other post, but I don't understand.

current ezsdk ver. is 5.00.00.56.

Please more detail explain.

  • 0
    TI__Guru**** 477425 points

    Hi,

     

    After loading vpss.ko, you should be able to see output on Composite, you could connect any graphics plane to SD VENC and display using FBdev, which will get displayted on composite output.

     

    Regards,

    Brijesh Jadav

  • 0 in reply to Brijesh Jadav
    Intellectual 530 points

    Thanks for reply.

    I referred

    "Rebuilding the FBDev driver inside the EZSDK" in <DM816x C6A816x AM389x EZ Software Developers Guide>

    and

    "Build Linux VPSS and Fbdev Drivers" in <VPSS Video Driver UserGuide PSP 04.00.00.07>.

    So I built 'syslink.ko', 'vpss.ko' and 'ti81xxfb.ko' successfully.

    And I found 'firmware_load'(not m3_firmware_load.m3) and 'ti816x_hdvpss.xem3' in the /usr/share/ti/ti-hdvpss-display-utils/ of SDK file system.

    At "Load VPSS and Fbdev Driver Modules" in <VPSS Video Driver UserGuide PSP 04.00.00.07>,

    The following command will not be executed :

    root@c6a816x-evm:/usr/share/ti/ti-hdvpss-display-utils# ./firmware_loader 2 ti816x_hdvpss.xem3

    FIRMWARE: Invalid usage -1

  • 0 in reply to Hokyun Yu
    TI__Guru**** 170625 points

    Hi Hokyun,

    You are using very old version of the EZSDK. Please switch to the newest version 5.05.02.00, available at:

    http://www.ti.com/tool/linuxezsdk-c6integra -> http://software-dl.ti.com/dsps/dsps_public_sw/ezsdk/latest/index_FDS.html

    Let us know if you have the same problem with the latest version.

    BR

    Pavel