readme.txt

基于visual dsp++开发环境

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ADSP-BF535 EZ-Kit FIR Demo

Analog Devices, Inc.
DSP Division
Three Technology Way
P.O. Box 9106
Norwood, MA 02062

Date Created:	1/30/02	

This directory contains example ADSP-BF535 program that implements a finite impulse 
response filter (FIR).

Files contained in this directory:

readme.txt		this file
fir.c			C source file for the fir routine 
fir.dpj			VisualDSP++ project file
in.dat			input data file produced by fir_data.m
fir_data.m		Matlab file used to generate input data
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CONTENTS

I.    FUNCTION/ALGORITHM DESCRIPTION
II.   IMPLEMENTATION DESCRIPTION
III.  OPERATION DESCRIPTION
IV.  DESCRIPTION OF INPUT DATA         

I. FUNCTION/ALGORITHM DESCRIPTION

The project fir.dpj contains the implementation of a finite impulse response filter (FIR).
  
y(n) = Summation from k=0 to M of h(k)*x(n-k)


II.   IMPLEMENTATION DESCRIPTION

The Blackfin DSP library routine is used to apply the FIR filter.


III.  OPERATION DESCRIPTION

- Open the VDSP project fir.dpj in the IDDE(Integrated Development and Debugging Environment).  
- Under 'Session'->'Select Session', select the ADSP-BF535 EZ-KIT Lite session.
- Under 'File'->'Workspace'->'Open', select the fir.vdw worskpace file.  This 
	will open a workspace with the time- and frequency-domain plots of the input and 
	output signals. 
- Under the 'Project' tab, select 'Build Project'.  This will automatically 
	load the executable.
- Select 'Run' from the 'Debug' tab on the menu bar.

You can view the filtered contents using the plot feature of VisualDSP++.
Note: 1.15 fractional data is used in this example.