Allocate code in SRAMX

_Ferrari_ — Tue, 21 Oct 2025 09:30:20 GMT

Dear all,
I'm developing a project based on the NXP MCXA153 CPU processor.
The project has some parts, for example interrupt routines, that need to be executed as quickly as possible.
I've read—please correct me if I'm wrong—that if the code is allocated in the processor's SRAMX, its execution is faster.
If this is the case, how do I allocate a part of my code (e.g., an interrupt routine) to the SRAMX RAM?
Is there an application note that explains the procedure in detail?

Thank you very much for your valuable and kind cooperation.

Re: Allocate code in SRAMX

Harry_Zhang — Thu, 23 Oct 2025 02:58:51 GMT

Hi @_Ferrari_

I think you can refer to this article.

Relocating Code and Data Using the MCUXpresso IDE - NXP Community

Harry

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Allocate code in SRAMX

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