Implement MPU by active or inactive Region Descriptor 1

[hilverlee]

For S32K118, does it have any side effect for implement MPU by active or inactive Region Descriptor 1 every 30 ms?

[lukaszadrapa]

Hi,

there's no problem to dynamically change MPU descriptors, I can't see issues here.

Regards,

Lukas

[hilverlee]

@lukaszadrapa 

Thank you very much for your quick response.

But in order to double check, I highlight that our current software is not change the access permission by dynamic switching the MPU Region Descriptors (such is change Region Descriptor 0 to Region Descriptor 1), but change the valid or invalid attribute of Region Descriptor 1 by changing the corresponding region descriptor’s valid bit every 30 ms. Does it has any side effect?

[lukaszadrapa · Accepted solution]

Hi @hilverlee ,

this is not a problem, there are no side effects. You can enable/disable your descriptors as needed.

Regards,

Lukas

[hilverlee]

@lukaszadrapa Got it. Thank you very much!