FPGA Central - World's 1st FPGA / CPLD Portal

FPGA Central

World's 1st FPGA Portal

 

Go Back   FPGA Groups > NewsGroup > FPGA

FPGA comp.arch.fpga newsgroup (usenet)

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 09-22-2003, 07:27 AM
RENE
Guest
 
Posts: n/a
Default 1024 POINTS FFT V2.0 Xilinx Core

Hi everybody!!

I trying to use the core "1024 points fft v2.0" from Xilinx, but I
have the problem that I don't get the correct result. I'm using a
constant input of 0001(Hex) for real and 0000(Hex) for imaginary.
During the intermediate steps of the fft, the core seems to be coming
up with strange values that it writes to memory and the error
propagates to the output.

I have simulated the 64 and 256 points ffts from Xilinx and they work
properly.

I think that maybe I'm not using the correct input data range, I know
that input data must be in two's complement format.

I'm using ISE 4.1 and for simulation I use Modelsim XE II v5.6e
(starter).

thanks for your attention and I would appreciate your help very much.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT +1. The time now is 11:44 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0
Copyright 2008 @ FPGA Central. All rights reserved