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Linux/DLPDLCR2000EVM: Disabling light-engine with use in Beagle Bone Black

Aaron Au
Prodigy 90 points
Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: DLPC2607, DLP2000,

Tool/software: Linux

I am taking apart the eval module in hopes that I can control the DMD with the BeagleBone Black.

My issue is when I remove the light engine from the evalboard, the DMD does not react to commands I give it. I suspect the eval module is not on until it recieves a signal from the LEDs.

Is there a way around this?

Thanks,

Aaron

  • 0
    TI__Mastermind 28005 points
    Aaron,

    Welcome to the E2E forums, and thanks for your interest in our DLP technology.

    The DLP2000 DMD is controlled by the DLPC2607 controller. Unfortunately, it is not possible to issue commands directly to to the DMD. Commands and data must be sent through the DLPC2607 to be parsed.

    Best Regards,
    Philippe Dollo
  • 0 in reply to Philippe Dollo
    Prodigy 90 points
    Thanks for answering so quickly. I'm sorry I was not clear. I am using the DLPDLCR2000EVM board which includes the DLPC2607 and is interfaced with a BeagleBone Black.
  • 0 in reply to Aaron Au
    TI__Mastermind 28005 points
    Aaron,

    If that is the case, then you should not have a problem interfacing with the system. Just keep in mind that the optical engine mounted on the system must be installed at all times for the sytem to function. If you remove the optical engine the DLPC2607 board will not boot. Likewise, it is not possible to communicate with the optical engine directly (without the DLPC2607).

    I hope this helps.

    Best Regards,
    Philippe Dollo
  • 0 in reply to Philippe Dollo
    Prodigy 90 points

    This is exactly where I am stuck. I have a setup where I have removed the light engine from the mechanical chassis, but still connected to the board.  Now I'd like to turn off the light engine because I don't want blinding white light comming out of the system. 

    But I've found the IC2 communication scheme for the 2607, so I will try that since there is an option to turn off the RGB LEDs.

    Thanks,

    Aaron