TMS570LC4357: MPU regions with different settings for same address

David Boehlen

Prodigy 40 points

Part Number: TMS570LC4357

Hello,

I have a question regarding the MPU configuration.

What happens if two MPU regions have the same Region Base Address but different settings for the address area.

Which configuration will the CPU use.

Thanks

over 1 year ago

+1 jagadish gundavarapu over 1 year ago

TI__Guru 63035 points

Hi David,

Please look into below FAQ:

(+) [FAQ] TMS570LC4357: What are the differences among the memory attributes, memory types and cache policy in MPU settings? - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

When memory regions overlap, memory access is affected by the attributes of the region with the highest number.

For example, if memory regions 3 and 4 regions have same base address with different MPU settings then the corresponding memory region will be affected by the region-4 settings.

--
Thanks & regards,
Jagadish.

0 David Boehlen over 1 year ago in reply to jagadish gundavarapu

Prodigy 40 points

Thanks for the quick reply