• Memory protection unit - Cortex-M4
    Hi. I am writing back regarding MPU usage. I implemented it into the software in next ways (note, that program is quite simple - only privileged mode, no RTOS): 1. I enabled background region, thus all...
  • Difference between Sub regions and Overlapping Regions in MPU
    Hi Experts, In the Memory Protection Unit, what is the difference between Sub regions and the Overlapping regions ? What is the typical use case of the MPU and how it helps in building a quality software...
  • CM4: Is DAP immune to MPU protections?
    Can the DAP cause exceptions by performing illegal instruction in spaces protected by MPU or is it immune? Trying my hand at setting up MPU but I cannot get it to fire - thought it might not be possible...
  • What’s new with the Memory Protection Unit (MPU) in Cortex-M23 and Cortex-M33?
    ARM Cortex-M23 and Cortex-M33 processors, announced recently at ARM TechCon 2016, both integrate a new Memory Protection Unit (MPU). This optional MPU is based on an updated ARM Protected Memory System...
  • Memory Protection Unit - Complexity in usage
    Hi Experts, As I understand the MPU region is used to set various memory read/write/execute permission/background/properties. I found few application notes on "Stack memory protection using MPU"....