ONNX Runtime Support for Cortex-M33 and Cortex-M7

[brainchip-india]

I successfully ran ONNX Runtime on Cortex-A55 for a basic matrix multiplication example by directly downloading the AArch64 ONNX Runtime library.

However, I want to try it on low-level microcontrollers, so I followed the official ONNX Runtime build guide to generate an ONNX Runtime library for ARM Cortex-M33 and Cortex-M7. I am unsure if running ONNX Runtime on Cortex-M series microcontrollers is feasible.

Since Cortex-M33 is part of the ARMv8-M family, does ONNX Runtime officially support it? If not, are there any recommended lightweight alternatives for running ONNX models on Cortex-M33/M7?

I would appreciate any insights or guidance on this, @skottmckay @mtodd.