FFT's problems

[mohamed.shfat]

Hello everyone 

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 ? 

[balkris]

please verify the core with standard signals like impulse , ramp, step and sinusoidal. This may be expected result based on your inputs

[mohamed.shfat]

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 ! 

[balkris]

check core configuration . it provides both option for output ordering bit rev/natural