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Altera_Forum
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13 years ago

FIR Compiler Strange Output

I've just added an FIR Compiler to my design, for use as an antialiasing filter. The sampling frequency is 6.25kHz, and low-pass filter cutoff is 3kHz. I've run a test signal through; a pure s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I simulated a fir based on the settings you showed in your screen captures and indeed the output format is the problem. You need to take the 12 MSBs.