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Altera_Forum
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10 years ago

Nios2 gen2 interrupts getting disabled

I have just ported a project that's been working for years with a Nios2-gen1 processor to the new Nios2-gen2. Everything seems to be working fine except for one strange problem, I'm finding my inter...
Altera_Forum's avatar
Altera_Forum
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10 years ago

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Hi maurimj,

your issue happen in nios II or the gen 2 nios?

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Nios II Gen 2. We also submitted an Altera SR. Their reply was to use the IRQ bridge. I am surprised they did not recommend the patch that they gave you as I am sure it is a related issue.

It was an interesting problem and I am not sure how or why the IRQ bridge fixed the issue. I could go into debug mode and step over lines where I would write to the control registers (status, ienable, etc.). None of them would "accept" their writes.