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Altera_Forum's avatar
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
Icon for Honored Contributor rankHonored Contributor
10 years ago

OK, I got a reply to the service request I submitted to Altera on this. Turns out it's a known bug with the Nios2-gen2 processor as of Quartus 15.0. They have a patch which is supposed to fix it, and will have it fixed in a future Quartus release. I'm still waiting on the patch file, so can't confirm if it fixes the problem

And yes, it appears that the tightly coupled data master port is part of the problem. I don't have much more detail then that though.