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DLP4710EVM-LC: Start up batch file. Booting into video mode + only green color

Part Number: DLP4710EVM-LC

Hi,

Q2:

I have a problem with creating batch start-up file for our projector. I would like to let projector boot into HDMI projecting mode with activated only green LED. I tried to make my own batch file but it was just flickering on green. Can you please tell me what I'm doing wrong ? 

&&

# Idle Mode Select
W 36 03 01
# Operating Mode Select
W 36 05 00
# Rgb Led Enable
W 36 52 02

&&

Q2:

I also would like to ask you if there is any option to adjust projector in to the mode that after getting power the projector will automatically boot up in projecting mode without clicking on the green button to boot up...

It will help me a lot.  

Thank you for your help 

Sincerely 
Martin

  • Hi Martin,

    Currently our EVM is designed in this way that Green button SW21 enable the PROJ_ON signal. In this EVM we do not have any way to skip this, but if you are planning to design your own hardware then you can take care of that. This is designed for safety purpose.

    Use latest firmware and GUI available here : http://www.ti.com/tool/DLP4710EVM-LC

    For update firmware in external mode, Add these commands in your batchfile :

    ## Write: DisplaySize: 1920x1080

    W 36 12 80 07 38 04
    ## Write: InputImageSize: 1920x1080
    W 36 2e 80 07 38 04
    ## Write: InputSourceSelect; 0 = External Video Port
    W 36 05 00
    ## Write: VideoSourceFormatSelect: 0x43=RGB888
    W 36 07 43

    W 36 DB 00 00

    W 36 52 02

    Thanks,

    Navneet

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  • Hi Navneet, 

    Thank you for your help with start-up sequence it works perfectly. :-)

    It's a pity that there is no any other option to turn-on projector on. We was thinking that we will do it trough relay signal on start-up. Is there necessary to give second signal before turning off or can I just disconnect it from power ?  (I know in manual is to turn it off with button SW21) But it's complicating thing with turning off sequence :D . If it's not necessary it will save me some time. 

    Thank you, 

    Sincerely,

    Martin

  • Hi Martin,

    It is mandatory for reliable DMD life time to make PROJ_ON signal to go low before disconnect the power.

    If you don't make PROJ_ON low then it will risk the DMD lifetime.

    Thanks,

    Navneet

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