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Configuring i.MX93 M33 Core Memory from 128K to 256K

Hi,

We are using an NPU for an ML application, which requires Ethosu. However, our low-level application runs on an M33 core. We are trying to integrate it into the existing ethosu_rpmsg_app, but it already consumes a lot of memory. We need to increase the memory size from 128K to 256K. Please share the method to achieve this.

Memory Consumption of Demo example m33_sdk/boards/mcimx93evk/demo_apps/ethosu_apps_rpmsg -

Screenshot from 2025-03-13 16-48-10.png

Re: Configuring i.MX93 M33 Core Memory from 128K to 256K

Hello,

Yes you should

Regards

Re: Configuring i.MX93 M33 Core Memory from 128K to 256K

Hi,

So, should we consider that only 128KB of TCM is available? Is there no option to extend it from 128KB to 256KB?

Regards,
Gopal Sharma

Re: Configuring i.MX93 M33 Core Memory from 128K to 256K

Hello,

There is an issue with TCM and M33, previously posted here:

https://community.nxp.com/t5/i-MX-Processors/Configuring-imx93-M33-memory-via-BLK-CTRL-S-AONMIX-regi...

Regards

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‎11-21-2025 02:10 PM
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