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Regarding FFT & IFFT CORE IN XILINX

Started by varun_agr January 3, 2012
Sir
I am trying to use FFT 5.0 core in xilinx as follows for 50 hz Sin
WAVE(THROUGH ADC)for noise removal
1. 64 Transform size
2. Radix-2 burst mode
3.I/p data width 8 bit
4.Scaled
5. Natural order(without cylix prefix)
I want to know what is the value of scale_sch.
Further I want to use inverse FFT for the O/P fft i.e XK_REAL AND XK_IMA.
and display the same sine wave via DAC. So what is the procedure after
FFT.
Should I remove all real and imaginary except fundamental frequency i.e
calculated by xk_index.
and give this to FFT core(for inverse FFT) or anything else, kindly suggest
me
bye
Varun

	   
					
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