2023-03-28 10:21 PM
Hi @Channel
We are using STM32U585 for implementation of TF-M and TF-M SBSFU for our project. now we are planning to change our controller to STM32U5A5 controller. I have couple of doubts
Awaiting reply in this regard.
Thanks for the support
2023-03-30 02:34 AM
Hello,
1- The STM32U5Ax will be soon certified SESIP and PSA levels (planned). The same security level of the STM32U585 is expected.
2- An MCU certifiable PSA L3 is more robust versus MCU certifiable L2 or L1 (see STM32Trust - STMicroelectronics). The STM32U5Ax series are all certifiable SESIP and PSA level3 and are planned to be certified from our side.
3- "Will there be an official release from ST on TF-M ... ", there will be a new TFM release for STM32U585. I need to check for the U5A5.
4- No impact in terms of security while switching from STM32U585 to STM32U5Ax MCUs.
Best Regards,
Younes
2023-03-30 02:45 AM
Hi @Younes LAHBIB
Thanks for the quick reply
could you please check if there would be an official TFM- SBSFU TFM implementation for STM32u5a5 package and a possible timeline for the same(approximate)
Thanks again for clarifying other doubts
Thanks and Regards
Philip
2023-03-31 05:21 AM
Hi @Community member
Unfortunately we will not deliver any SBSFU/TFM for the STM32U5Ax.
However, in the Readme file we explain how to tailor from STM32U585 to STM32U5A5xx or STM32U545xx devices.
In ...\STM32Cube_FW_U5_V1.2.0\Projects\B-U585I-IOT02A\Applications\TFM, README.md file refer to section
## <b>Hardware and Software environment</b>
best regards,
Younes