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Altera_Forum's avatar
Altera_Forum
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17 years ago

Help with altera FFT

hello; what i want to do is to get spectrum of an sinusoidal signal using the altera fft core i have generated a v8 fft with the following setting: fft point : 64 (to start with) archi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

between your data source and your FFT input you need a multiplier, ROM, and state machine. the input data and ROM output are connected to the multiplier, and the output of the multiplier (truncated) is fed into the FFT. a counter steps through the ROM at the same rate as the input data is fed into the FFT. i will see if i can draw a block diagram, but it is fairly straight forward.