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

need help with my own peripheral device

I have finished writing a peripheral device. it communicates with niosII cpu using avalon-mm bus. but when i read from it, i can't get the value i want. and writing to it also has no effect on...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Have you made sure that you aren't holding the component in reset? I see that you have used a "if reset = '1' then" jobby. Whenever I've written components I've always opted for a "if reset = '0' then". I do this as the examples I learned from all used active low reset. Just a suggestion, and apologies if this is a rubbish suggestion.....