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Explorer II
June 24, 2024
Solved

External RAM for FrameBuffer on STM32H7S7L8

  • June 24, 2024
  • 2 replies
  • 1743 views

Good morning to all,
I’d like to ask your advice.
I have to insert an external RAM for the framebuffer because the internal one is not enough for LCD that I will drive (LCD-TFT LVDS 7 inch 1024x600).
Which external RAM do you recommend? Could a QuadSPI work?

    This topic has been closed for replies.
    Best answer by mƎALLEm

    Hello,

    You can use HSPI interface. You can refer to the STM32H7S78-DK board as reference (using APS256XXN-OBR memory):

    SofLit_0-1719239743231.png

     

    2 replies

    Leo99Author
    Explorer II
    June 24, 2024

    I add that I have a micro LQFP176 pin.
    Do I have to use the FMC? Quad or Octo SPI?

    mƎALLEmAnswer
    Technical Moderator
    June 24, 2024

    Hello,

    You can use HSPI interface. You can refer to the STM32H7S78-DK board as reference (using APS256XXN-OBR memory):

    SofLit_0-1719239743231.png

     

    Leo99Author
    Explorer II
    June 24, 2024

    Thank you! 
    The problem is that in the package LQFP that I’m using it is not available the HexaSPI only Octa.

    Graduate II
    June 27, 2024