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Root of Trust implementation – Connected devices with authentication requirements need a root of trust in the system architecture. This is particularly important for devices that can be updated over the air. In a system with TrustZone technology, code…

This is a very common question.

The diagram below is a pictorial description of the differences followed by some explanations.

Starting from the bottom:

• Cortex-M33 is an implementation of the ARMv8-M architecture. Full details are in my blog on the 5…

This is a very common question too.

The diagram is a pictorial description of the differences followed by some explanations.

Starting from the bottom:

-Cortex-M23 is an implementation of the ARMv8-M architecture. Full details here.

-Using the same debug…

Hello,

I am using Cortex-M33 FVP model to run the Keil RTX TrustZoneV8M RTOS example.
Have also tried to experiment with the memory map configuration and the corresponding SAU region programming for NS/S patitioning and the behaviour is as expected.

However…

Where the system designer wants them to be, of course!

There is no restriction on where the various software modules reside. As with all other Cortex-M processors, the system designer is at liberty to build the solution that has the best fit for the target…

I have a set of tasks in FreeRTOS and I need to put some of them in the secure world (Trustzone).

Is there a communication to be established between the SMC trustZone side and the scheduler FreeRTOS side ?

tracks please.