Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 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
14 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.