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AM3517 DIsplay LCD

keciy
Prodigy 180 points
Other Parts Discussed in Thread: AM3517

Hi，all，

 I　want  to display the video signal on LCD on the AM3517 expeimenter kit . Becaust  the board don't have the LCD screen ,I have bought a LCD myself. According to the LCD's line signal ,now I have make theLCD signal of AM3517  to the matching signal lines of the LCD screen. Now  the problem is how to configure the parameters of the LCD controller or the boot arguments to make the LCD begin to work normally. If it need to modify some files,which file need to modify and how to do it . 

Thanks.

  • 0
    TI__Mastermind 43875 points

    Keciy.

    Please have a look over the following wiki pages for information on LCD connectivity and configuration.

    http://processors.wiki.ti.com/index.php/Display_Subsystem

    http://processors.wiki.ti.com/index.php/LCD_connectivity

    http://processors.wiki.ti.com/index.php/Adding_new_DVI_resolutions

    http://processors.wiki.ti.com/index.php/UserGuideDisplayDrivers_PSP_03.00.00.05

    BR,

    Steve

  • 0 in reply to Steve Clynes
    Prodigy 180 points

    Steve,

    Thanks.Following the Adding_new_DVI_resolution I have brightten the LCD.

  • 0 in reply to keciy
    TI__Mastermind 43875 points

    Excellent. Glad you are making progress.

    BR,

    Steve

  • 0 in reply to Steve Clynes
    Prodigy 180 points

    Hi，Steve,

     Now I want to display the video signal produced by UVC camera. Because the format of the camera is YUYV, and the input signal of LCD is RGB 565，it is said the LCD supports YUV2 in some reference manuals , I want to know if I need to convert the YUYV to RGB?

    Thanks.

  • 0 in reply to keciy
    Prodigy 180 points

    Hi,all

    Althrough I have brightten the LCD by modify some parameters after the board booted.  I only modified the /display0/timing .But  when I use it to display the video signal there always have mistakes. So I want to know  is there a LCD controller to modify the parameter ?And how will I to modify it?

  • 0 in reply to keciy
    TI__Mastermind 43875 points

    Keciy,

    The video pipes are able to use YUV frame buffers but the graphics pipe is not.

    If you refer to the TRM and check register DISPC_VIDn_ATTRIBUTES you will see what the various frame buffer formats can be.

    Unfortunately I do not know enough about the software driver configuration to know if there is a quick and simple way to use the video pipe rather than the graphics pipe for the primary display under Linux.

    BR,

    Steve