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Non-secure peripheral with a secure interrupt handler

Rajiv

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

Parents
  • 0 Arm Employee Badge in reply to Rajiv

    There is no need to change the CONTROL and EXC_RETURN if the mode and state before and after the ISR are the same. The EXC_RETURN has been extended to support additional information about security states, so all the Secure ISR can be implemented as normal C function.

    regards,

    joseph

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  • 0 Arm Employee Badge in reply to Rajiv

    There is no need to change the CONTROL and EXC_RETURN if the mode and state before and after the ISR are the same. The EXC_RETURN has been extended to support additional information about security states, so all the Secure ISR can be implemented as normal C function.

    regards,

    joseph

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