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Altera_Forum's avatar
Altera_Forum
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16 years ago

128, 256, 512, 1024 Points FFT.

If I want to design a module consists of 128, 256, 512 and 1024 points FFT (the users can select the N - points FFT they want), what is the best way to do it? I know, in software such as C and Matlab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

you should read about VHDL generics and generate statements.

with well thought out code structure you should be able to define a generic "fftpoints" that will unroll the code into an N point FFT using a for ... generate statement.