2.7. When selecting microcontrollers in the STM32L5 series

Arm® TrustZone® support:

  • Fixed default SAU is configured in the application partition_stm32l552xx.h and partition_stm32l562xx.h files.

  • Import does not work for TrustZone® projects (TZEN=1).

  • To facilitate the peripheral privilege configuration, from STM32CubeMX V6.2.0, the GTZC peripheral is split into two domains: secure and nonsecure. The side effect is that, in the case of project migration from a release version before V6.2.0, if GTZC is configured in both the secure and nonsecure domains with previously configured privilege peripherals on a nonsecure peripheral, this configuration is lost during the migration. The GTZC_NS privileges must be configured again.

Regarding the cohabitation between USB and USB Power Delivery, the VID and PID of USB Power Delivery and USB are not automatically aligned. VID/PID values must be aligned manually.