For a project I use the STM32H753ZI Nucleo board. I want to know how to use the ITCM-RAM and DTCM-RAM in my application, for external pin interrups and function stacks? Is using a 32-bit boundery enough? Thanks in advance members!

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Guru

Use the linker script or scatter file to describe memory sections.

Use #pragma or __attribute__ directives to place code in described sections.

Fix the startup.s code to initialize the statics properly, and what every stack/heap allocation methods you're using ie _sbrk()

Keil will do this cleanly, ST's GNU/GCC, bit of a cluster. Study docs for tools you have chosen to use.

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Lead II

For startup code in C and linker script example have a look here:

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