11-30-2016 10:33 AM
I'm trying here to take an FFT but it looks that there is a problem at the output of the FFT core !
I'm taking an FFT with 1024 points , real time , pipelined streaming I/O , fixed point and scaled , my input is a sin wave with 200khz and the sampling freq of the XADC is about 427 ksps . The output data that i'm getting from the core is shown in the pic . i can't understand why i have many peaks there . i know that the data comes in reversed order because when i set the natural order for the core it gives me nothing just empty window with no peaks as it shown in the 2nd graph .
Can some one help me please to find what's wrong for my design ?
11-30-2016 10:47 AM
11-30-2016 10:58 AM
My input is already a sinusoidal wave , i'm just wondering why in Bit/digit reversed order i'm getting a results , but in the natural order there is nothing !
11-30-2016 11:07 AM