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Altera_Forum's avatar
Altera_Forum
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9 years ago

Relational operators

Hi, I don't understand why the following code doesn't work, can you enlighten me ? freq_authorization : process(clk) begin if rising_edge(clk) then if ((unsigned(fr...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

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What do you mean ? Freq is my entry port

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Yes, have you set the value for Freq in your testbench? if it contains 'U' (uninitialised) or 'X' (unknown) then you get the warning you have.