MPU

Hi Using STM32f4 Board, I am enabling MPU in between any code (simple program) always causing memory management fault on debugging fault that ( IACCVIOL) bit is set, It means Attempting...
Usefulness of MPU in a non-OS system

Hi. We are developing a product which has to achieve some safety requirements. The system is quite simple, non-OS, running in a Privileged mode only on a Cortex-M4. I would like to implement a Memory...
MPU and TrustZone

Hello, I am trying to configure MPU on Cortex-M23 processor with TrustZone enabled. I would like to assign an MPU region for a user-level application running in the non-secure side of TrustZone-M...
MPU is not triggering MemFault or HardFault

MPU is not triggering MemManage fault. I want to protect a memory region of 64 bytes starting from 0x20000000. I've configured the MPU registers accordingly, but when I write in a protected memory location...
MPU vs TrustZone-M

When you are securing a firmware or an application code , it boils down to protecting the portion of memory with MPU. When and why would I use TrustZone-M for securing the firmware when I can actually...