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Original question:

DLP2021LEQ1EVM: Corrections to DLPU113A User Guide

DLP2021LEQ1EVM: DLP Software Demonstration video is not up-to-date

Geoffrey Engel
Prodigy 50 points
Part Number: DLP2021LEQ1EVM
Other Parts Discussed in Thread: DLP2021-Q1, DLP3021-Q1, DLP3021LEQ1EVM

I am persisting with trying to repeat the demonstration system setup steps for the DLP2021LEQ1EVM as per https://training.ti.com/getting-started-dlp3021leq1evm-software.   However this demonstration project video is not consistent with the current hardware and software (using DLP Composer 15.3.0.7).

Fresh copies of DLP Control Program (dlpc136a) and DLP Composer (dlpc137b) were downloaded from www.ti.com   and the software was installed onto a PC.   The steps listed in the training video were followed exactly, however building the project results in an initial error of "Sequence Set did not sum the duty cycles to 100" - even though 24.9 + 62.4 + 12.7 = 100

The apparent resolution of this problem is to change the duty cycles to R:G:B = 25:62:13 (rather than 24.9 : 62.4 : 12.7).   Is this a "bug" or limitation in the DLP Composer?

The demonstration video does not show a "Sequence Set" column on the Image/Video tab - however this column is now present in the latest DMP Composer software.   Setting any of the static images or race-car video to "high brightness" in the "Sequence Set" column (rather than "baseline") produces the build error :  "Specified argument was out of the range of valid values".   I have no idea what argument error this is referring to.

Changing all images/videos to be "baseline" allows the build to succeed, however the output display of any image is now only a portion (approximately two-thirds) of the entire image.   How do I fix this to display the entire image ?

I hope to hear from you soon.

Geoffrey

  • 0
    TI__Genius 9580 points

    Hi Geoffrey,

    Thank you for reaching out to the E2E forums with your question and we will need some time to look into this question. Thank you for your patience.

    Thanks,

    Alex Chan

  • +1
    TI__Mastermind 27950 points

    Hello Geoffrey,

    Since you are attempting to use the DLP2021LEQ1EVM, the root of the problem is that you must import the new DLP2021-Q1 Composer Project and FPGA Configuration (DLPC153.ZIP) DLP Composer project specific to the DLP2021-Q1 into DLP Composer 15.3.0.7. Based on the description of your problem, you currently seem to be using the DLP3021-Q1 Composer Project and FPGA Configuration 1.2 (Rev. A) (DLPC135A.ZIP) which is specific to the DLP3021-Q1 DMD.

    These two projects are not cross-compatible due to the difference in FPGA firmware. As you have observed, even though the DLP3021-Q1 FPGA firmware is capable of running the DLP2021-Q1, the DLP3021-Q1's larger resolution only appears as a portion (approx 2/3rds) on the DLP2021-Q1 DMD.

    Please try importing and building the aforementioned DLPC153 based project specific to the DLP2021-Q1 in an effort to resolve this matter.

    Getting started videos for the DLP2021LEQ1EVM have not yet been created, but the general hardware and software setup and execution flow from the DLP3021LEQ1EVM is similar and still applicable.

    You are correct that the latest version of DLP Composer (15.3.0.7) now expects whole numbers in the Sequence Set page's duty cycles.

  • 0 in reply to Akeem Whitehead
    Prodigy 50 points

    Hello Akeem,

    Thank you for your response.   It makes sense that using the DLP Composer Project file for the DLP3021 will result in my seeing only 2/3 of the display images - when using the DLP2021.

    It took some digging, but I finally managed to find a DLP2021 project file which was buried in a ZIP file inside the Windows Program_Files_(x86) directory after installation of the DLP2021Q1FPGA-1.0.0.0-windows-installer.exe, which was extracted from DLPC153.ZIP

    I now have the full images displaying correctly.
    Regards,
    Geoffrey