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Altera_Forum's avatar
Altera_Forum
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15 years ago

multicycle instruction FSM with nios and the done variable

I have been trying for weeks to figure out how the done variable works and it seems like it has no effect whatsoever on the program. Can anyone explain how it works. Here's an example i've bee...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Start shouldn't be asserted for more than one clock cycle. So you should see a start strobe with a valid dataa and datab input, then when your custom instruction is complete you preset the valid data output with the done signal asserted.