ARM_MPU_SetMemAttr(0UL, ARM_MPU_ATTR( /* Normal memory */
ARM_MPU_ATTR_MEMORY_(0UL, 1UL, 1UL, 1UL), /* Outer Write-Back transient with read and write allocate */
ARM_MPU_ATTR_MEMORY_(0UL, 0UL, 1UL, 1UL) /* Inner Write-Through transient with read and write allocate */
ARM_MPU_RBAR(0x20000000UL, ARM_MPU_SH_NON, 0UL, 1UL, 1UL), /* Non-shareable, read/write, non-privileged, execute-never */
ARM_MPU_RLAR(0x20000FFFUL, 0UL) /* 1MB memory block using Attr 0 */
// Execute application code that is access protected by the MPU
I'm trying to use the MPU on cortex-m23.I want to set the ram address from 0x20000000 to 0x20001000 to XN.
After the instruction execute after the ARM_MPU_Enable, any instructions after it will result in a hardfault.I have set the background attribute and it does not work.
Can anyone help me?
Sorry I'm not familiar with the forums. Thank for your advice！
The scope of each forum is given in the list of forums:
and on the front page of each forum:
How was that not clear?
Perhaps you could provide feedback in the 'Community Help' forum - so that the site admins could provide better signposting:
your input would be appreciated as this seems to be a very common problem.