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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

Hi Kohagan,

Thanks for your reply.

I've tried to modify and provide an Avalon MM slave, it consists of a 'write' and a 'writedata' signal. This Avalaon MM slave function is to let the CPU send a command to clear the interrupt bit. Then, I assign my interrupt signal in SOPC to this Avalon MM. However, the result is very strange... my program totally doesn't work, even it has hanged in the beginning.... :( I don't know why.., I've set the interrupt priority low enough such that it didn't overlap with previous process. Do you have any suggestion why it happens?

Thanks