Interrupts on a baremetal system IMX53QSB

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Interrupts on a baremetal system IMX53QSB

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nabilb
Contributor I

Hello guys,

I'm exploring the ARM trustzone on my IMX53QSB and I want to handle interrupts in the secure world.

Can I have an example or the steps that I have to follow to :

          - Configure an interruption as secured

          - how can I configure the flag to move to the interruption handler for example :

                              for (i=0;i<5;i++) {

                                             if (i==3) generate an interruption and go to the interruption handler

                              }

          - how to clean the flag in the handler

Thank you.

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2 Replies

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi nabilb

one can look at below links

i.MX53QSB and ARM TrustZone security extentions

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka15417.html

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.prd29-genc-009492c/BABFAEDF.html

Best regards

igor

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nabilb
Contributor I

Hi igor,

Thank you, but my question concerns interrupts more than the trustzone.

Have you any idea of about how to handle IRQ and FIQ.
Thank you.

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