Streaming FFT design - version 8.1

The fft control state machine was written in a way so you can use the variable streaming architecture in a burst-like format. If you want to use it with regular streaming, make sure you set the pulse between frame to zero (there is a parameter that you can set)...

Also keep in mind that there is usually about a 2.5-3 frames worth of delay between input and output... You have only simulated long enough to input one input packet... I imagine if you simulate a bit longer (at least 3 times longer), then you should see the first output packet coming out of the FFT core...