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DLPLCR9000EVM: Dynamically display .bmp or .tif images

Geoffroy Delamare
Prodigy 40 points

Part Number: DLPLCR9000EVM

  • Hi,

    On page 27, it's written that it's possible to "dynamically load images into internal memory via USB or I2C interfaces". How can we do that automatically with a USB interface? I would like the DMD to dynamically read the image file and display it.

  • Thank you,
  • Geoffroy
  • 0
    TI__Mastermind 43165 points

    Hello Goeffroy,

    This is typically done through the GUI, but can also be done via API calls.

    What it is referring to is loading pattern data into on-board DDR memory and then displaying it.

    In the GUI select Pattern On-The-Fly Mode [shown in magenta box]

    Then press the "+" button [shown in green box] and it will bring up a dialogue box to browse for your image.  Here you can set teh bit depth, exposure time and other properties to apply to the image stored on disk.

    Next press the "Update LUT" button [shown in red box] to load the pattern(s) into DDR memory.

    Finally press the "Start" button [shown in purple] to display the patterns on the DMD.

    You can record all of these steps as a batch file that will play the image(s) when you run it.

    Fizix

  • 0 in reply to Fizix
    Prodigy 40 points

    Hi, thank you but I want it to be done automatically (every seconds for example)

    Geoffroy

  • 0 in reply to Geoffroy Delamare
    TI__Mastermind 43165 points

    Geoffroy,

    I am sorry, but this funtionality is not available from the GUI.  You would have to write a program that makes calls into the API to do this.

    The other possiblity is to use Video Pattern Mode and have an outside program that displays the image in a file as video to the DLPC900/DLP9000 "display" that it sees attached to the system.  The outside program would have to automatically update the video image whenever the file changes.

    Fizix

  • 0 in reply to Fizix
    TI__Mastermind 43165 points

    Geoffroy,

    P.S. Actually with the method I listed, you could use just ordinary video mode.

    Fizix