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
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.
Have a great day,
Jun Zhang
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