iir_designer_usage_examples.txt

%///////////////////////////////////////////////////////////////
% Example 1
% 2nd order DC blocker, 20 Hz, sampling frequency = 44.1kHz
% Plots the filter response and sample signals 
%///////////////////////////////////////////////////////////////
pkg load signal
order=2
f1=20
fs=44100
plot_results=true

design_iir_highpass_cmsis_butter(order,f1,fs,plot_results);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%///////////////////////////////////////////////////////////////
% Example 2
% Elliptical bandpass between 150 and 600 Hz, 1dB ripple, 60dB
% stopband attenuation
%///////////////////////////////////////////////////////////////
pkg load signal
order=4
ripple=1
att=60
f1=150
f2=600
fs=16000
plot_results=false

design_iir_bandpass_cmsis_elliptical(order,ripple,att,f1,f2,fs,plot_results);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%///////////////////////////////////////////////////////////////
% Example 3
& Same as frequencies sd example 2, but designed as Butterworth 
% filter
%///////////////////////////////////////////////////////////////
pkg load signal
order=4
f1=150
f2=600
fs=16000
plot_results=false

design_iir_bandpass_cmsis_butter(order,f1,f2,fs,plot_results);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%///////////////////////////////////////////////////////////////
% Example 4
% 50 Hz notch filter, 
% bandstop between 47 and 53 Hz, sampling frequency = 1kHz
%///////////////////////////////////////////////////////////////
pkg load signal
order=4
f1=47
f2=53
fs=1000
plot_results=true

design_iir_bandstop_cmsis_butter(order,f1,f2,fs,plot_results);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%