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Explorer II
July 28, 2024
Solved

Missing SDRAM option in STM32CubeIDE for STM32H750VB

  • July 28, 2024
  • 3 replies
  • 1898 views

Hi, I'm developing a STM32H750VBT6 board that need SDRAM, the datasheet said that only LQFP144 package does not support SDRAM, but I cannot find SDRAM option in FMC configuration. Can someone please help me.Screenshot 2024-07-28 141009.png

Screenshot 2024-07-28 141021.png

Screenshot 2024-07-28 141159.png

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

    SDRAM is not available on the LQFP100 due to the missing A0, A1 pins (among others).

    TDK_0-1722167268383.png

     

    Contrary to the datasheet, SDRAM is available on the LQFP144 according to CubeMX and my own brief analysis.

    @Amel NASRI Can you please look into this?

    3 replies

    Super User
    July 28, 2024

    Hi,

    (i never tried before...but) here on H750V , 

    seems little bit "hidden" , only bank2 can be sdram :

    AScha3_0-1722153119616.png

     

    htMercuryAuthor
    Explorer II
    July 28, 2024

    htMercury_1-1722160321448.png

    I tried following your configuration but mine donot have Bank Mapping configuration. Can you please a little bit more detail ?

     
    Super User
    July 28, 2024

    No detail - i just have it there. :)

    Maybe - different H7 packs, i have:

    AScha3_0-1722161436570.png

    - using still V1.10.0 with MX 6.9.1   -- maybe there something different in version you use.

     

    btw

    Why you choose sdram on FMC , using up many pins on this 100pin package - and not a quad-spi psram ?

    Graduate II
    July 28, 2024

    I'd be surprised that the 100 pin part exports all the pins needed for SDRAM and the 144 pin doesn't. 

    Go through the pin table in the Data Sheet and check manually. 

    TDKAnswer
    Super User
    July 28, 2024

    SDRAM is not available on the LQFP100 due to the missing A0, A1 pins (among others).

    TDK_0-1722167268383.png

     

    Contrary to the datasheet, SDRAM is available on the LQFP144 according to CubeMX and my own brief analysis.

    @Amel NASRI Can you please look into this?

    Technical Moderator
    July 29, 2024

    Hi @TDK ,

    Thanks for bringing this issue to our attention. This is reported internally (Internal ticket number 187681).

    -Amel