2025-11-05 9:41 PM
Hi, I have a doubt. I made some changes in the secure bootloader to achieve certain functionality, but I am unsure whether the code in the secure bootloader is developed by ST (such as drivers or APIs), or if it is intended for user modifications. Specifically, I modified the sfu_interface_crypto_scheme.c file to achieve my functionality.
As far as I understand, apart from the Secure Engine project and the we can't modify Bootloader project HAL and LL APIs, CMSIS APIs, and middleware like Secure Engine, KMS, and Crypto. Please correct me if I am wrong.
For reference, I am using the STM32WLE5CC controller.