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DLP2021LEQ1EVM: Flash Programming Image/Video

Will Rodriguez
Prodigy 55 points
Part Number: DLP2021LEQ1EVM

Tool/software:

I'd like to replace a current image/video stored on the onboard flash with a different version without having to program the entire flash memory. This seems to be possible given the DLP Composer Flash Programming interface has a 'Replace a Video' option but I am getting a 'did not find Video information' error. Is the image file generated during build and saved under the Outputs directory the correct file which contains this information or is there another file that needs to be specified in the dropdown?

  • 0
    TI__Intellectual 1440 points

    Hello ,

    Thank you for reaching out and using the E2E forums! An expert from our team will review the thread and get back to you shortly.

    Regards,

    Tristan Bottone

  • 0
    TI__Intellectual 840 points

    Hi Will,

    I'm still looking into this issue. I'm seeing this on my end as well. I'm checking with the owners of DLP Composer to find what's going wrong here.

    Thanks,

    Andrew

  • +1 in reply to Andrew Thomas
    TI__Intellectual 840 points

    Hi Will,

    I've found the cause of the issue. The code that handles finding the video information expects the Video Information block to be at a 4KB boundary. By default that block is being aligned to just a 4 byte boundary in the Composer project. You can change it by changing this field in the Flash Blocks page:

    You will have to rebuild+reprogram the full flash image once, but then the feature will work after that.

    I'll work with the team to either update the project with this updated setting or to update the code to allow non-4KB boundaries in the future.

    Thank you!

    Andrew