%       AccelDSP 8.1.1 build 690 Production, compiled Apr 26 2006 
% 
%    THIS IS UNPUBLISHED, LICENSED SOFTWARE THAT IS THE CONFIDENTIAL 
%        AND PROPRIETARY PROPERTY OF XILINX OR ITS LICENSORS 
% 
%     Copyright(c) Xilinx, Inc., 2000-2006, All Rights Reserved. 
%     Reproduction or reuse, in any form, without the explicit written 
%     consent of Xilinx, Inc., is strictly prohibited. 

function y = behavioral_filter(X)

% Create filter coefficients
NUMTAPS = 32;
BE = 0.25;

persistent b state
if isempty(b)
   b = fir1(NUMTAPS-1,BE);
   state = zeros(NUMTAPS-1,1);
end

% Filter the input
[y,state] = filter(b,1,X,state);

save coeff.txt -ascii -double b