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hhywyh
Associate
December 25, 2025
Solved

CubeMX Memory Management and NAND_Flash region.

  • December 25, 2025
  • 2 replies
  • 419 views

When I used the MMT tool in STM32CubeMX to configure a 256MB NAND FLASH based on FMC, an error appeared. I am using the STM32H743IIT6 chip and have configured NAND FLASH in the FMC. I want to know how to solve this problem.PixPin_2025-12-25_22-24-47.png

 

Best answer by Mahmoud Ben Romdhane

Hello @hhywyh ,

 

While adding an application region you need to check the region availability. (Adress and Size)

Further to the screenshot shared, FMC Bank 3 is reserved.

MahmoudBenRomdhane_0-1767621082964.png

 

Thanks.

Mahmoud

 

 

 

 

 

 

 

2 replies

Technical Moderator
December 25, 2025

Hello @hhywyh 

Let me thank you for posting.

I am currently checking this behavior, and I will get back to you as soon as possible.

Thanks.

Mahmoud

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
hhywyh
hhywyhAuthor
Associate
December 27, 2025

Thank you for your reply, and I look forward to your further answers.

Technical Moderator
January 5, 2026

Hello @hhywyh ,

 

While adding an application region you need to check the region availability. (Adress and Size)

Further to the screenshot shared, FMC Bank 3 is reserved.

MahmoudBenRomdhane_0-1767621082964.png

 

Thanks.

Mahmoud

 

 

 

 

 

 

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.