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Thread: QUAD SPI while using Audio Shield?

  1. #1
    Junior Member
    Join Date
    Sep 2019
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    10

    QUAD SPI while using Audio Shield?

    I hope to use this very nice screen on an audio project.

    It has QSPI / SPI / Parallel . I want to try hooking it up with Quad SPI. Is this possible with Teensy 4.0 with the Audio shield connected?

    Thanks,
    Craig

  2. #2
    Senior Member+ KurtE's Avatar
    Join Date
    Jan 2014
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    10,946
    I may be missing something here, but I don't see anything about quad SPI with this display? I see their normal 3 wire and 4 wire SPI options.
    I do not have this one of theirs but do have some of the RA8875 and an ILI9488 displays and have connected them using 4 wire SPI, which is normal for many of our displays, where we talk about using MOSI, SCK, CS, DC in some cases MISO (If you can receive any data back from the display).

    Note: I don't know if there is a Software library yet yet that works with this display.

  3. #3
    Junior Member
    Join Date
    Sep 2019
    Posts
    10
    Sorry, I think I got misled by an Ebay listing. So much for due diligence.

    They just arrived though and look very very nice. Hopefully regular SPI will not be too slow. Hate to tie up too many pins with the parallel modes.

    Thanks,
    Craig

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