How to porting TFM to stm32u545 in Zephyr application?

[Lezhi]

Hi,

I’m working on porting TF-M to a custom hardware platform based on the STM32U545 running Zephyr. As a starting point, I copied the existing b_u585_iot02a platform and adjusted it for the STM32U545’s 512 KB Flash.

However, I haven’t been able to get it working. Has anyone already tried this port, or is there an existing example for the STM32U545?

I add parts of the platform configuration files in attachment.

Any guidance or references would be greatly appreciated!

Lezhi