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Altera_Forum's avatar
Altera_Forum
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17 years ago

maintaining my result from becoming unknown state

Hello, i've got a question on how to maintain my result from becoming unknown state. let's say the original value is 11110000. however after some period of time it becomes 1111X00X making the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

FYI

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result <= b and "0000000011111111" after 30 ns;

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Constructs like the above cannot be synthesized.

It is likely that Quartus will ignore the after "30 ns" part.