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Altera_Forum
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18 years ago

MegaCore FFT in Quartus

I'm working on using the MegaFunction FFT in Quartus on an Altera DE2 board, but have had issues finding documentation of the inputs/outputs to the function. I've scoured these forums for a while, bu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Alright, I spent a lot more time looking at it, and I think I know how the states work; however, I'm not sure how it works with the timing of the input samples. I'm inputting the line in for the real part and setting the imag input as 0, which is sampling at 8 Khz. Does the input frequency affect anything at all?

Right now, the FFT setting is taking 4096 points, but I'm not particularly sure how long a packet should be.

Any help would be great. Thanks!