LPC55S69 : MPU protection address range

[EugeneHiihtaja]

Hello !

It is not so clear what kind of address range is covered by nonsecure and secure MPUs.

Can it cover only regular memory areas e.g RAM,ROM, Flash memory or also 

AHB peripherals ?

I need to limit access to peripherals in Nonsecure, Nonprivileged mode and think how I can do it.

Regards,

Eugene

[ZhangJennie]

Hi Eugene

memory security is decided by SAU and IDAU together. By default all memory is set to secure. however user can configure it. I recommend you read this article to understand trustzone memory regions. if any question after read it, please contact me again.

TrustZone on the LPC55S6x 

Have a great day,
Jun Zhang

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