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Altera_Forum's avatar
Altera_Forum
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15 years ago

NIOS + IRQ + custom component

Hi, I'm trying to interrupt a Nios Prosessor whit a Custom Component and setup a successful interrupt routine. But I can't Do it. The problem is that i can't find a complete example of a custo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

You need to close the loop with the ISR.

The nios interrupts are level sensitive, so if the hardware removes the IRQ signal (to the cpu) and the cpu was running with interrupts disabled, then the interrupt wont be detected.