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problem when omapl138 is connected to monitor

STALIN
Intellectual 260 points
Other Parts Discussed in Thread: OMAPL138

Hi,

 I am facing a problem when omapl138 is connected to monitor through vga port.I just able to see a TI logo displaying on the screen and that's all  nothing else.

Do I need to configure my board ?? anyone facing the same problem??Please help me..

  • 0
    TI__Intellectual 1280 points

    Hi,

    Which software is running on the board?

    Do you have any debug info related to this?

    -Regards,
    Balaji N

  • 0 in reply to Balaji Nagarajan
    Intellectual 260 points

    operating system is linux-3.1.10.

    thank you.

  • 0 in reply to Balaji Nagarajan
    Intellectual 260 points

    Hi,

     Do I need to change  any switch positions on the board,to enable vga display?

    Thank you ,

    venkatesh.

  • 0 in reply to STALIN
    TI__Intellectual 2620 points

    This is normal and to indicate that Linux is up and running and FBDev is working showing the TI logo. You can test FBdev by transferring a 640x480 bitmap file to LCDK (using the 'scp' command as in the 'hello world' example in the Getting Started Guide) or if you are using NFS mount then just 'sudo cp' the file to the ;/home/root' folder.

    Once the bitmap file is there, execute 'fbsplash -s <image file name> to see it displayed.

    LCDK SDK provides the tools to implement Linux applications using GStreamer, Qt, ALSA, thttpd APIs as well as TI Syslink API to interface to a program running on the DSP where it can be used to do some number crunching. Consult the Software Developers Guide to have the TI tools installed and run the Syslink examples to see how message and data can be passed between Linux and DSP for processing.

  • 0 in reply to Loc Truong
    Intellectual 260 points

    Hi,

    I transfered many (black n white as well as color) 640X480 bitmap image to home/root/    folder of LCDK,and executed "fbsplash -s <image_name.bmp>".

    There is a error message showing:    fbsplash: bad PPM file 'our_image_rgb.bmp' .

    Please sort out the problem.

    Thank you,

    venkatesh.

     

  • 0 in reply to STALIN
    TI__Intellectual 1585 points

    Hi Venkatesh,

     

         The error you are specifing fbsplash: bad PPM file 'our_image_rgb.bmp' arises as the fbsplash utility checks for the ppm file as input but you are giving a bitmap file.

         You can do this in a slightly different way. You can convert your .bmp file into .ppm file using the linux command line utility bmptoppm and then proceed with the fbsplash command and you can see the image in your VGA display.

     

    NOTE:The bmptoppm is one type of converter in the package netpbm (package of graphics manipulation programs and libraries).

     

    Thanks

    Iyshwarya

     

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