mesh agrawal asked . 2021-12-28

Generation of C code from simulink

I am trying to get a C code for the peaking IIR filter, but I am getting the following error in MATLAB Code Report Viewer.I am attaching the MATLAB code below .Please help me to debug this error .Any help would be appreciated

function Hd = Filter1_150_matlab
%FILTER1_150_MATLAB Returns a discrete-time filter object.

% MATLAB Code
% Generated by MATLAB(R) 9.4 and DSP System Toolbox 9.6.
% Generated on: 26-Mar-2019 16:44:54

% IIR Peaking filter designed using the IIRPEAK function.

% All frequency values are in Hz.
Fs = 1000;  % Sampling Frequency

Fpeak = 150;  % Peak Frequency
Q     = 100;  % Q-factor
Apass = 1;    % Bandwidth Attenuation

BW = Fpeak/Q;

% Calculate the coefficients using the IIRNOTCHPEAK function.
[b, a] = iirpeak(Fpeak/(Fs/2), BW/(Fs/2), Apass);
Hd = dsp.IIRFilter( ...
    'Structure', 'Direct form II', ...
    'Numerator', b, ...
    'Denominator', a);
num = [0.0092 0 -0.0092]
den = [1 -1.1648 0.9816]
%Hz1 = filt(num,den)
%disp(Hz1)

% [EOF]

I am getting following error message

Handle Classes in top-level outputs are not supported in MATLAB Coder. 
Output parameter 'Hd' contains a handle class.

simulink , filter , code generation