Architectures and Processors forum Non-secure peripheral with a secure interrupt handler

State Accepted Answer
Locked Locked
Replies 5 replies
Subscribers 351 subscribers
Views 13183 views
Users 0 members are here

2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options

How was your experience today?

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Non-secure peripheral with a secure interrupt handler

Rajiv over 7 years ago

Hi,

I was wondering if it was possible to configure a peripheral to be in non-secure mode and have the interrupt handler associated with the peripheral run in secure mode?

Basically by not setting the appropriate bit in NVIC_ITNSn.

Best,

Rajiv

Top replies

Joseph Yiu over 7 years ago +1 verified

It is technically possible to configure a peripheral as Non-secure and its interrupt as Secure, but in some cases this might be undesirable - e.g. a Non-secure software could trigger lots of Secure interrupt...