CubeMX Memory Management and NAND_Flash region.

hhywyh · ‎2025-12-25

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.

Mahmoud Ben Romdhane · ‎2025-12-25

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 · ‎2025-12-26

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

Mahmoud Ben Romdhane · ‎2026-01-05

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.

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.