Skip to main content
Associate
July 28, 2024
Solved

Missing SDRAM option in STM32CubeIDE for STM32H750VB

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.
TDK
TDKBest answer
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?

"If you feel a post has answered your question, please click ""Accept as Solution""."

9 replies

AScha.3
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

 

If you feel a post has answered your question, please click on " Best Answer ".
htMercuryAuthor
Associate
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 ?

 
AScha.3
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 ?

If you feel a post has answered your question, please click on " Best Answer ".
Tesla DeLorean
Guru
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. 

Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
TDK
TDKBest answer
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?

"If you feel a post has answered your question, please click ""Accept as Solution""."
Amel NASRI
ST Technical Moderator
July 29, 2024

Hi @TDK ,

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

-Amel

To give better visibility on the answered topics, please click on "Best Answer" on the reply which solved your issue or answered your question.