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Altera_Forum's avatar
Altera_Forum
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9 years ago

Signal not assigned in init state

Hello, I am working on a simple state machine but for some reason the output value is not assigned correctly. First it is supposed to go into state init and assign default values to my 4x8...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

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Are you running the test for long enough? it will take 200 clocks for output "key" to be assigned to anything.

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I am running it for 4200 ns. The clock input is 50MHz or 20 ns periods. So 4200 ns should be sufficient.

This is the output of ModelSim:

http://www.alteraforum.com/forum/attachment.php?attachmentid=13398&stc=1

From your question I gather that the general code looks fine and should work?

Thank you.