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Explorer II
February 20, 2025
Solved

INTERFACING 32bit RAM With STM32H750XB MCU

  • February 20, 2025
  • 1 reply
  • 1156 views

Hi, 

    Please share pointers on interfacing 32Bits RAM along with STM32H750XB MCU with QUAD SPI External Memory and 8 MB Frame Buffer RAM on STM32H750XB
RAM - IS42S32400
TFT USED  - 1024x600 at 24 bpp and or 1024x800 at 16 bpp at 60 + FPS

32bit RAM.png


Are These Settings Ok?

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

    @Caan wrote:

                                    I have specified that RAM is IS42S32400J-6BL Which is 12 Bit Address and 32 Bit Data, It is used in STM32H750B-DK


    The SDRAM used on the STM32H750B-DK is the MT48LC4M32B2B5-6A

    mALLEm_0-1740388250784.png

    So need to refer to the IS42S32400J-6BL datasheet and follow the article I shared above.

    1 reply

    Technical Moderator
    February 21, 2025

    Hello @Caan ,

    Not sure about your question. But this configuration you shown is not sufficient for the SDRAM configuration: timings and SDRAM settings.

    You can refer to this article: How to set up the FMC peripheral to interface with the SDRAM IS42S16800F-6BLI from ISSI

    CaanAuthor
    Explorer II
    February 22, 2025

    Hello @mƎALLEm ,
                                    I have specified that RAM is IS42S32400J-6BL Which is 12 Bit Address and 32 Bit Data, It is used in STM32H750B-DK but it is configured in 16 BIT Data Mode, IN mycustom DEV board I need to convert the interface for the RAM in 32Bit Data mode so as to run the DISPLAY at 60 FPS on 1024x600 TFT. Please Suggest the solution for the Same.

    mƎALLEmAnswer
    Technical Moderator
    February 24, 2025

    @Caan wrote:

                                    I have specified that RAM is IS42S32400J-6BL Which is 12 Bit Address and 32 Bit Data, It is used in STM32H750B-DK


    The SDRAM used on the STM32H750B-DK is the MT48LC4M32B2B5-6A

    mALLEm_0-1740388250784.png

    So need to refer to the IS42S32400J-6BL datasheet and follow the article I shared above.