• 4-kbyte boundary space
    Note: This was originally posted on 22nd August 2012 at http://forums.arm.com Hi there, when I read AMBA AXI4 specification, the spec shows that "Bursts must not cross 4KB boundaries to prevent them from...
  • 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...
  • Cortex-M MPU limitations
    Hi All, The title may seem a bit negative, just from my personal point of view. What is the main reason of the two requirements of setting up MPU, namely size and start addresses of MPU regions. First...
  • 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 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...