Hello everyone,

Happy New Year!

Are MCUs without internal flash not supported by TF-M?

From TF-M’s documents, I saw ITS(Internal Trusted Storage) is a PSA-ROT secure service and requires store data in internal flash.

Does that mean TF-M not support hardware platforms that do not have internal flash? For example, RT500 does not have internal flash: https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/i-mx-rt-crossover-mcus/i-mx-rt500-crossover-mcu-with-arm-cortex-m33-dsp-and-gpu-cores:i.MX-RT500

Thank you!

Best regards

William Lee