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DLP470TP: FPGA code availability and what it does

John Staples
Intellectual 410 points

Part Number: DLP470TP

I am looking for an end-product which will have the option to be able to switch between 60,120,144 or 240hz 1080p or 4K@60Hz.

Will the DLPC itself be enough to add this functionality or will the FPGA firmware need to be rewritten as well?

If the latter, is the FPGA code available in sourcecode form or only binary? Binary is useless for modification purposes.

  • 0
    TI__Intellectual 1825 points

    Hi John, 

    Thank you very much for your post and interest in the DLP470TP! The DLPC6421 controllers (the controller for the DLP470TP DMD) are able to support up to 240Hz 1080p and 4K @ 60Hz. 

    Please let me know if you have any additional questions!

    Thanks, 

    Brandon

  • 0 in reply to Brandon Seiser
    Intellectual 410 points

    Thank you. My question is if we want to allow the users to change the refresh rate and mode of operation (pixel-shifted time-multiplexed 60Hz 4K vs 240Hz/144Hz/120Hz/60Hz 1080p) of the controller and DMD, do we have to make any changes to the FPGA code or do we only have to change the firmware of the DLPC? Or better yet, only send the corresponding command to the DLPC6421 during operation without having to rewrite the firmware of DLPC as well?

    Thank you.

  • 0 in reply to John Staples
    TI__Intellectual 1825 points

    No firmware changes to the DLPC6421 or FPGA are needed to be made to support these frequencies. The frame rates are supported by the sequence databases. The user will be able to switch between 4K @ 60Hz and 1080p @ 240 Hz (or less) seamlessly with current firmware, assuming the Front End chip in the system allows this feature.

    Please let me know if you have additional questions!

    Thanks, 

    Brandon

  • 0 in reply to Brandon Seiser
    Intellectual 410 points

    Thank you Brandon,

    To be clear, only two sequences may be saved in the database or can we have 5 sequences ( 60,120,144,240hz for 1080p and 4K@60Hz ) all stored in the DLPC at once?

  • 0 in reply to John Staples
    TI__Intellectual 1825 points

    Hi John, 

    The sequences aren't necessarily a 1 for 1 in supporting frame rates. IE a 240Hz sequence DB can support slower frame rates. 

    The DLPC6421 firmware already has sequence support for all of these frame rates and multiple sequence DBs are supported (more than two). I haven't seen a limit on the number of sequence DBs that are supported, so I cannot comment on the upper limit. 

    Please let me know if you have any additional questions!

    Thanks,

    Brandon