stm32 - TF-M integration in a STM32L5 project - Stack Overflow

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Security is a key requirement in my current project, and while researching security for embedded systems I came across STM32 TrustZone and Trusted Firmware‑M (TF‑M) so I wanted to ask how I can integrate TF-M into my existing STM32TrustZone-enabled project. Can TF-M be added as a library or software pack? The example provided by ST does not include an .ioc file, which makes it unclear how to configure GTZC (Global TrustZone Controller) or integrate additional software packs like X-CUBE-SUBG2 into the project.

I have already gone through the official ST document: UM2671 - Getting Started with STM32CubeL5 TF-M Application and have a basic understanding of TF-M and TrustZone. However, I’m unsure of the correct approach to import TF-M into an existing STM32CubeIDE project while maintaining TrustZone configurations.

If anyone could guide me on how to proceed with this integration, I’d be really grateful! I am currently working with the STM32L562E-DK and just starting out with TrustZone and TF-M.

Thanks in advance!

I downloaded the software pack provided for STM32L5 and successfully built the TFM example, but I am now not sure how to proceed from here, like adding other middle wares, or configuring GTZC for segregating peripherals into trusted and non trusted.

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