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DLPC7540EVM: Displaying 2K at 240Hz (DPL650TEEVM）

笹岡 孝至
Prodigy 90 points
Other Parts Discussed in Thread: DLP471NE, DLP471TE, DLP650TE, DLPC7540, DLPC7540EVM, USB2ANY

I have an important question！

We are currently testing image transfer from a PC via HDMI at 4K at 60Hz,

but eventually we plan to transfer images at 2K at 240Hz via the Front-end board to the Formatter board.

Do I need any special settings on the GUI at this time?

Please let me know the details of the settings if necessary.

Thanks

Best regards,

Sasaoka

  • 0
    TI__Genius 12015 points

    Hello Sasaoka,

    Could you please advise which DMD are you utilizing?

    Also, when you say "4K at 60Hz", is this 3840x2160 (4K UHD) and when you say "2K at 240Hz", is this 1920x1080 (1080p)?

    The DLPC7540 chipset consists of DLP471NE (1080p), DLP471TE (4K UHD), and DLP650TE (4K UHD) DMDs.

    Best,

    Aaron

  • 0 in reply to Aaron Black
    TI__Genius 12015 points

    Hello Sasaoka,

    Please advise what you are meaning when you say "4K" and "2K".

    Best,

    Aaron

  • 0 in reply to Aaron Black
    Prodigy 90 points

    Hello Aaron,

    Sorry for not responding to this thread.

    Yes, that's right.

    "4K at 60Hz" means 3840x2160 (4K UHD) with a frame rate of 60Hz, and "2K at 240Hz" means 1920x1080 (1080p) with a frame rate of 240Hz.

    What we want to display with DMD is 2K at 240Hz.

    We are using DMD board is DPL650TEEVM.

    By any chance, this DPL650TEEVM and DLPC7540 combination cannot display 2k240Hz?

  • 0 in reply to 笹岡 孝至
    Prodigy 90 points

    Hello Aaron ,

    >Hi Sasaoka san,

    >The Devasys USB-I2CIO board is actually difficult to find on sale now. You will just need any i2c to USB converter, not necessarily that one. I’m not sure >where we got our HDMI to i2c board, but really all you should need is an HDMI breakout board, and then connect to the i2c pins.

    We cannot find the HDMI breakout board and the board that converts it to i2c which is the information from you.

    Please give us information on   HDMI breakout board and i2c to USB converter board that we can currently purchase.

    Also, please let me know if there is another way to support 2K (1920*1080) 240Hz.

     

    Best regards,

    Sasaoka

  • 0 in reply to 笹岡 孝至
    TI__Genius 12015 points

    Hello Sasaoka,

    Please see this FAQ created last year related exactly to your question of i2c to USB conversion - here.

    It seems you are trying to reprogram the EDID on the front-end board.

    The front-end board (DLP064) schematic is available within the DLPC7540EVM Design files.

    The EDID is programmed through I2C, 5V and GND (HPD) coming through the HDMI cable. This would be pin 15 through pin 19 of connector J1.

    1080p at 240Hz is definitely supportable by the controller as it exists now.

    We will still need to work on getting you an updated EDID file but this should definitely be possible.

    Best,

    Aaron

  • 0 in reply to Aaron Black
    Prodigy 90 points

    Hello Aaron ,

    There are some things I would like to check first.

    1. Do I need to rewrite the EDID on the Front-end board to support 2k 240Hz?  (Yes or No?)

    2. If yes, do I need to prepare the environment as shown in the attached PowerPoint document?

    3. Also, are the things shown in the diagram correct? If it is incorrect, please send me the corrected diagram.

    4. If 3 above is correct, is it okay to use only "DLPC4420AEVMSW-10.1.1-windows-installer.exe" that you told me last time as the S/W? Or "USB2ANY Explorer Installer v2.7.0.0 (GUI FOR EVALUATION MODULE (EVM))" or "SigCon Architect v2.0.0.8" (SUPPORT SOFTWARE) or "PMIC USB2ANY Launchpad Firmware" (FIRMWARE) of the USB2ANY interface adapter. Do I also need “USB2ANY Explorer Software” (SUPPORT SOFTWARE)?

    If so, please let me know the steps to take.

    Change from HDMI to I2C20240513.pptx

    This problem is very difficult for me to solve, so please kindly explain.

    Thanks,

    Best regards

    Sasaoka

  • 0 in reply to 笹岡 孝至
    TI__Genius 12015 points

    Hello Sasaoka,

    1. This EDID is not programmed currently on the Front-end board, so yes it would need to be written to the board.

    2. Please send me this PowerPoint through another means, it seems to have been corrupted.

    3 & 4 I will wait for this PowerPoint to comment.

    It may be much easier for you to reach out to our regional FAE to discuss this and possibly have them instruct you directly.

    I will take this conversation offline. The resolution is that 1080p @ 240Hz is not covered by the EDID currently and needs to be programmed accordingly.

    Best,

    Aaron

  • 0 in reply to Aaron Black
    Prodigy 90 points

    Hello Aaron,

    I will send you the materials from yesterday's power point in a different format. Photos and PDF.

    Change from HDMI to I2C20240513.pdf

  • 0 in reply to 笹岡 孝至
    TI__Genius 12015 points

    Hello Sasaoka,

    The .pdf is not working either. Please work with your local TI contact to get this information to me if you would like.

    Best,

    Aaron

  • +1 in reply to Aaron Black
    Prodigy 90 points

    Hello Aaron ,

    Mr.Aaron said,

    ＞I would like to just reprogram your device with the 1080p @ 240Hz.

    ＞It is much easier for me to do quickly but if the EDID needs to change again you will be unable to set it yourself which could be frustrating.

    ＞Please advise which avenue you would like to take.

    ******************************************************************

    I have four questions.

    1. Will Aaron be able to write the front-end board to support 2k240Hz?

    2. We currently have 3 front-end boards, so could you send all 3, rewrite them, and then send them to us?

    3.Can I just send the front-end board without needing EVM?

    4. How much time does the work require?

    We look forward to your reply.

    Best regards,

    Sasaoka

  • +1 in reply to 笹岡 孝至
    TI__Genius 12015 points

    Hello Sasaoka,

    Please see our private message, we have taken this offline for the public forum.

    Best,

    Aaron