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Assigning pins to the secure context of TFM application

SedCore
Associate III

Hello,

Unless I'm wrong, the architecture of the TFM application as described in UM2851 seems not to allow the assignment of a peripheral (e.g. a LED pin) to the Secure context of TrustZone as it is the case with simple TrustZone applications. 

The UM2851 states that the user can "Replace the nonsecure TFM application example delivered in the STM32CubeU5 MCU Package by its own product nonsecure application", without raising this possibility for the secure application too.

Moreover, I couldn't find on the Internet such example of customization of the Secure context of the TFM application to assign peripherals to the Secure part of the application.

Is there a way to do so? If yes, how?

Thanks a lot.

@STea , @Jocelyn RICARD 

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