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Altera_Forum's avatar
Altera_Forum
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16 years ago

Question about FIR filter outputs

Hi, I designed FIR filter and I try to undestand why the number of output samples is different from the input? It lacks 2-3 samples. Thank you for your help.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

A couple of them probably got stuck in the Avalon ST FIFO. I ran into that problem a couple versions ago (haven't checked the latest version yet, so can't be sure). If it's really a big deal for you, just zero pad your original input a little bit.