Save data to No init RAM on STM32F7

[HPham.1590]

Hello, I'm using STM32F7.

I want to save data on F7 memory, where is not delete after reset.

My data may has 1-2KB size.

Anyone can tell me how to do that?

I read and found that i can do with no init ram, but I can not find any tutorial or documents related it.

Many thanks,

Hieu

[TDK · Accepted solution]

You need to create a separate linker section that doesn't get initialized on startup, and locate the variable in that section.

https://atadiat.com/en/e-how-to-preserve-a-variable-in-ram-between-software-resets/

[HPham.1590]

Many thanks, TDK