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Altera_Forum's avatar
Altera_Forum
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16 years ago

MSB not used in FFT Megacore Function

I am currently using the FFT MegaCore and I remarked something strange about the output resolution. I tested the function in Matlab using the model with different types of signals (sine, noise,...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Interesting...

I noted the same thing in altera's first releaeses (back in 2001) and raised the issue to them. The following fft version improved .

You might set the bitwidth higher to force it to use more bits if indeed it is not enough.