MCX MicrocontrollersのトピックHow to use SD card for storage ML model?

How to use SD card for storage ML model?

nnxxpp — Sun, 08 Dec 2024 14:49:30 GMT

My board is MCXN947 but internal flash is 2 MB. It is small for my tflite model. I know that MCXN947 supports SD card. How can I use SD card to save and run my model? I want to the flow is same before. Before I use the internal flash and debug via USB.

Thank you.

Re: How to use SD card for storage ML model?

Harry_Zhang — Tue, 10 Dec 2024 10:26:11 GMT

Hi @nnxxpp

If you want to save your model in SD card, this is possible.

You can refer to this example.

But MCXN947 doesn't support booting from SD card.

Harry

Re: How to use SD card for storage ML model?

nnxxpp — Wed, 11 Dec 2024 02:17:29 GMT

@Harry_Zhang

Thanks.

So in my case the external flash maybe is the best solution. How do you think about it? Please give me some advice and tutorials.

Re: How to use SD card for storage ML model?

Harry_Zhang — Thu, 12 Dec 2024 06:05:57 GMT

Hi @nnxxpp

I think you can use external flash to store your code and XIP.

So you can refer to hello_world_qspi_xip example.

Harry