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DLPDLCR2000EVM: DLPDLCR2000EVM

Mebin P M
Prodigy 90 points
Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: DLP2000

Hi,

I want to display the RGB out of renasas controller to DLP2000 projector. As per the pinout i connected hsync, vsync, dataenable. pclk and rgb pins to the host pins. but nothing happens.(just red color screen)

In the user guide. It is not properly explained about, how to interface this dlp2000 evm with an external host processor other than beaglebone.

Actually I don't know what to do with these pins HOST_PRESENTZ, VINTF, PROJ_EXT_ON.

Do I need to connect I2c pins for Displaying the RGB output to the projector.

Is this DLP2000 EVM works when I connected these RGB pins alone to external processor.

I need proper explanation for all these questions

1. what all pins are connected to RGB pins?

2. what about the pin assignment of PDATA pins  to RGB pins of Host processor?

3. What should do with these PROJ_ON_EX, HOST_PRESENTZ, J3 header etc?

Can anyone please help me...

Thanks in Advance

  • 0
    TI__Mastermind 28005 points
    Mebin

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

    The pin mapping for PDATA0-23 matches the RGB888 pin mapping seen here:
    elinux.org/24bit_LCD_for_BBB

    As for the other pinouts, their purposes in detail are as follows:
    > PROJ_ON_EX is an external on-off switch for the device, you can drive this pin via GPIO to turn the projector off at will.
    > HOST_PRESENTZ should be grounded when connecting a host device. It indicates to the EVM that a host processor is present.
    > J3 is a header pin pair that is connected to system power.

    This and other pins are documented in the TI.com reference design for this board, which includes schematics and layout information. You can review it here:
    www.ti.com/.../tida-01473

    I hope this helps.

    Best Regards,
    Philippe Dollo