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Altera_Forum
Honored Contributor
Honored ContributorInterrupt priority IIR
Hi all, I'm using the NIOSII with an Internal Interrupt Controller (IIR) and 8 IRQ's triggered by PIO edges. I assigned a number to each one of the IRQs which represents it's priority where a l...
Altera_ForumHonored Contributor
Honored ContributorHi!
--- Quote Start --- My first ideas for your problem would be to set the non-interruptible IRQ to highest priority or to disable all other IRQ's while inside the ISR. But I guess you already thought about this :P --- Quote End --- Well, Yes and No;-) If you have more than one IRQ which should not be interrupted, the highest priority thing does not work acceptably. But disabling all might me a solution .... Though I could imagine that the IRQ can be interrupted just the moment you are executing the disabling-all stuff. But at the moment I am lucky. I do not need it yet:-) Thanks for your suggestion!
