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Negative response of FFT IP in Vivado


amna

Question

Greetings!

I am trying to take fft of 1MHz signal generated through DDS in Vivado but the response of fft is in reverse direction then the required one. I am attaching screenshot for reference. Can anyone help me to resolve it.

Outputwave.thumb.PNG.02d5720d9dec72d913c78569060dd33b.PNG

Regards,

Amna

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