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Altera_Forum's avatar
Altera_Forum
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14 years ago

Strange FFT Output

I've been using SignalTap to create a CSV file of the output from my FFT engine. However, when looking at the output in Matlab, it doesn't look right at all. I know that the ADC's working prop...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Check the output order of your FFT samples. They may be in bit reversed order. Also, in simulation tools to can generate a .csv fairly easily by using $fwrite in verilog. I'm sure that VHDL has something similar.