Implement MPU by active or inactive Region Descriptor 1

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Implement MPU by active or inactive Region Descriptor 1

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hilverlee
Contributor II

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

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1 Solution
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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi @hilverlee ,

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

Regards,

Lukas

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4 Replies
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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi,

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

Regards,

Lukas

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hilverlee
Contributor II

@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?

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi @hilverlee ,

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

Regards,

Lukas

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hilverlee
Contributor II

@lukaszadrapa Got it. Thank you very much!

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