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Visitor II
May 31, 2025
Solved

Help interfacing STM32H7S3L8 with 24-bit RGB LCD — no LTDC?

  • May 31, 2025
  • 2 replies
  • 755 views

I'm trying to configure the STM32H7S3L8 to work with a 24-bit parallel RGB LCD. From what I've read, this kind of interface usually requires either an LTDC peripheral or a dedicated display controller board. However, I can't find any documentation confirming whether the H7S3L8 includes LTDC.

Can anyone confirm if the STM32H7S3L8 supports LTDC? If not, is there any practical way to drive a 24-bit RGB display directly from this chip, such as using the FMC, or do I need to add an external display controller?

    This topic has been closed for replies.
    Best answer by AScha.3

    from ds :

    AScha3_0-1748714889853.png

    +

    AScha3_1-1748715761704.png

     

    ...is not what you want ??

     

     

     

    2 replies

    AScha.3Answer
    Super User
    May 31, 2025

    from ds :

    AScha3_0-1748714889853.png

    +

    AScha3_1-1748715761704.png

     

    ...is not what you want ??

     

     

     

    Graduate II
    May 31, 2025
    nsp2Author
    Visitor II
    May 31, 2025

    Thank you for your help.

    I am very new to everything ST related... do you mean literally select every box for boot and app, or look through them to find LTDC? If you mean the latter, I have already done that, and have only found the FMC LCD controller, which I believe will not work on my display. 

    Graduate II
    June 1, 2025

    Agree seems LTDC isnt present in S3 MX config. Not clear why. And steps is use search on up.

    S7 have example for LTDC , then maybe ... , but ST have bugs in systems...

    When S3 not have then supported is 8080 displays... but datasheet show pins for LTDC then try use manual config 

    MM1_0-1748763555091.png