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DLP2021-Q1: DLP2021 EVM SPI FLASH Real time data updates

hui_zhu
Prodigy 110 points
Part Number: DLP2021-Q1
Other Parts Discussed in Thread: DLP2021LEQ1EVM

Tool/software:

I am using the DLP2021LEQ1EVM evaluation module and I want to receive video data through the MCU, and then send the video data to the SPI FLASH storage on the EVM through the MCU. Afterwards, the EVM can control the DMD display. However, according to the operation manual, updated images or videos need to be built on a computer using DLP COMPOSER. So I won't be able to complete real-time online updates. May I ask how to update the video data in SPI FLASH online in real-time for DMD display.

thanks.

  • 0
    TI__Expert 6700 points

    Hi Hui,

    I've assigned this ticket to one of my colleagues who should be able to help you in the next day or so. Thanks!

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 110 points

    Thank you, looking forward to your help

  • 0 in reply to hui_zhu
    TI__Prodigy 575 points

    Hello Hui Zhu,
    For the DLP2021LEQ1EVM , the image and video data is part of the Flash Binary file (which is generated using the Composer tool mentioned in the manual).
    If you need to update the image/video content, you need to generate a new Flash Binary file using the composer tool and then program this whole Flash Binary into the system's SPI Flash Memory.

    It won't be possible to just send raw image/video content in the .bmp/.mp4 format and store it on the SPI flash since it won't be in the correct format which is readable by the DMD.

    Regards,
    Siddharth