Non-continuous memory RAM on STM32H743II

[JKhal]

Hi,

I am developing an application running on STM32H743II MCU and I need to use all the 1Mbyte RAM.

I tried to define a RAM_region for every SRAMx, this didn't work properly and not managed to build the project successfully.

Another issue is that some peripherals not working with RAM_region while works with another.

How to join all the RAM memory under one RAM_region !?

[berendi]

How to join all the RAM memory under one RAM_region !?

There is no way. You must decide what data goes into which SRAM area according to their function.

Read chapter 2 of the reference manual (you can skip the AXI matrix, flash and boot parts now).

Note which peripherals have their own bus master ports, and which ones require DMA. Set up some non-cacheable memory area for them.