Forum: FPGA, VHDL & Verilog what is value of scale_sch for FFT5.0 IP core in IFFT

von varun m. (Company: DEI) (varun_agr)

Rate this post
0 useful
not useful
We are using scaling in FFT5.0 IP Core for 64 transform size,radix 2 
burst mode,natural order,scaling(so get same o/p size as i/p size), i/p 
data 8 bit and expected o/p data also 8 bit. For this we scale for FFT 
in FFT5.0 IP CORE using trial method and using scale_sch="010101010101" 
in this case no overflow and for scale_sch="010101010100" it is overflow 
.But when we give o/p of FFT to I/p of IFFT (as we want to reuse same 
core) then in every scale_sch value there is no overflow. So what should 
be vaule of scale_sch for IFFT. Can anybody suggest me?
Before FFT I am using 50 hz sine wave using ADC and after IFFT I am 
using DAC and I want to remove all noise except 50 Hz component. Can 
anybody suggest me the process after FFT.



Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [vhdl]VHDL code[/vhdl]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]

Bild automatisch verkleinern, falls nötig
Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.