readme_fft.txt

这是一个fft的IP核

FFT MegaCore Function Version 2.2.1 Readme File
======================================================================

This file contains the following information:

o FFT MegaCore Function Overview
o FFT MegaCore Function Contents

FFT MegaCore Function Overview
======================================================================
The Altera(R) FFT MegaCore(R) function is a high performance, 
highly-parameterizable FFT processor. The FFT MegaCore function 
implements a Radix-2/4 decimation-in-frequency (DIF) FFT algorithm for 
transform lengths of 2**m where 6 <= m <= 14, internally using a
block-floating-point architecture to maximize signal dynamic range 
in the transform calculation.


For system requirements, new features, installation instructions, and 
fixed errata in this release, refer to the release notes in the doc 
directory.

For a list of known issues in this release, refer to the errata
sheet at www.altera.com/literature/es/es_fft_221.pdf.


FFT MegaCore Function Contents
======================================================================
  FFT MegaCore Function
  FFT MegaCore Function User Guide
  FFT MegaCore Function Release Notes
  FFT MegaCore Function Errata Sheet
  This FFT MegaCore Function readme file


Last updated April 2006.  
Copyright (c) 2006 Altera Corporation. All rights reserved.