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Original question:

[FAQ] Light Control EVMs (DLP4710EVM-LC, DLP3010EVM-LC and DLP2010EVM-LC)

DLP4710LC: Light Control EVMs Horizon Pattern Numbers 8ea and Using DLP4710LC + DLP3478 combination

Kim KM
Prodigy 10 points
Other Parts Discussed in Thread: DLP4710LC, DLPA3005, DLPA3000, DLPC3479, DLP3010LC, DLPA2000, DLPA2005, DLPC3478

Tool/software:

Other Parts Discussed in Thread: DLP4710EVM-LC, DLP3010EVM-LC, DLPA3000, DLPC3479, DLPC3478

hello. I have a questions DLP4710LC.

1. From this link, the maximum number of patterns for DLP4710LC is confirmed to be 8ea Vertical and 7ea Horizon.
If I use the DLP4710LC + DLP3478 combination, can I use 8 horizontal images?
https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/729968/faq-light-control-evms-dlp4710evm-lc-dlp3010evm-lc-and-dlp2010evm-lc

but in the DLP Programming guide DLPC3479 Software Programmer's Guide (Rev. B)

2. Is there a way to set up 8 horizontal patterns on the DLP4710LC?

Think you.

  • 0
    TI__Expert 6730 points

    Hi Kim,

    I've assigned this ticket to someone who is more familiar with this EVM. Please expect a reply within the next couple of business days. Thanks!

    Regards,
    Michael Ly

  • 0
    TI__Genius 11955 points

    Hello Kim,

    Thank you for reaching out to us through E2E!

    I'm somewhat confused by this question and hopefully I can get some clarity what's happening here.

    A preface to my answers are as follows:

    • The DLP4710LC DMD is constrained by it's chipset family and is grouped with either the DLPA3000 or DLPA3005 PMIC as well as dual DLPC3479 controllers

    • The DLP3010LC DMD is constrained by it's chipset family and is grouped with either the DLPA2000, DLPA2005, DLPA3000 or DLPA3005 PMIC as well as a SINGLE DLPC3478 controller

    • The DLPC3478 cannot support the DLP4710LC DMD

    1. I think you are referring to Table 3-82 and Table 3-83 which are not accurate. As you've stated, the FAQ has the correct maximum number of patterns for 8-bit and 1-bit vertical and horizontal pattern sets. Additionally, the DLPC3479 doesn't support any other bit depth than 1-bit and 8-bit, unlike the DLPC3478 controller, which does.

    2. If you need 8x horizontal patterns of any bit amount on the DLP4710LC, you will need to go to 8x 1-bit patterns. Alternatively, you may decide to reduce to 7x 8-bit patterns because only 7x patterns are supported with 8-bit horizontal patterns. The memory simply doesn't support more than 7x 8-bit patterns. We should notice that DLP4710LC (1920x1080) has more pixels than the DLP3010LC (1280x720).

    Best,

    Aaron