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Altera_Forum
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15 years ago

question about unsigned constant

Hi everyone, I meet a problem when I am trying to define a one bit unsigned constant. I think declaration should be constant var1: unsigned :='1'; But everytime I try this, it always be...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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think declaration should be constant var1: unsigned :='1';

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The definition involves two faults.

- it's missing a size constraint

- it uses incorrect bit-vector constant syntax 

constant CONST1: unsigned(0 downto 0) :="1";