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Altera_Forum's avatar
Altera_Forum
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13 years ago

fir filter code in vhdl [plzzzzzz reply as fast as possible plzzzz]

I have attached a file . this is my code for 4tap fir filter.but there is a problem.the o/p i get is not getting verified with the formula of fir.y(n)=h(n)*x(n) plzzzzz help me. plzz help!!!!! ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

If you are only simulating(functional) then don't worry about adding registers. In all cases don't put any registers between adders as this will affect fir function. I advise you go back to first code. It is ok, you are not testing correctly. Show me few samples of your input and output.