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LPC55S69 : MPU tables for RTOS

Question asked by Eugene Hiihtaja on Dec 5, 2019
Latest reply on Dec 21, 2019 by Eugene Hiihtaja

Hello !

 

It is not clear does MPU in this MCU is cover peripheral area memory range.

By fixed TZ settings I can enable access to SPI3 to be done with NS-user privileges.

But I have 5 tasks what running with user privileges and all of them can access SPI3 naturally.

It means RW for SPI3 peripheral need to be set as part of one task MPU configuration.

 

Does it possible or MPU cover only real memory address range ?

 

It is not clear for datasheet of this MCU type.

 

Regards,

Eugene

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