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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ // // File = anlgfilt.cpp // // simulation of analog filter // #include #include "anlgfilt.h" //================

' {$STAMP BS2} ' ============================================================================== ' ' File...... Ex22 - Throb.BS2 ' Purpose... Output a variable voltage with PWM ' Author.... Parall

Specification: - control range from -95.5dB to +31.5dB - step size 0.5dB/2.5dB - two PGA2310 on board - encoder input (1dB gains step) - remote control (it learns commands from every RC5 pilot

% PWSK_DSP TOOLBOX % Matlab functions to accompany the companian book % Digital Signal Processing using Matlab % by Proakis and Ingle % Publisher: PWS-Kent %

EwbLoadExtension ("ext\DIGITAL") EwbLoadExtension ("ext\ANALOG") EwbLoadExtension ("ext\CHIP") EwbAddMenuExtension ("Import...", "ext\SPICEEWB") EwbAddMenuExtension ("Export...", "ext\EWBSPICE")

%program p206 %lp2hp chebshev I N=9; Rp=10; w=400*pi; [z,p,k]=cheb1ap(N,Rp); [b,a]=zp2tf(z,p,k); %design analog highpass filter [bt,at]=lp2hp(b,a,w1); [h,w]=freqs(bt,at); semilogy(w/pi,abs(h

%program p310 wp=0.2*pi; ws=0.3*pi; Rp=1; Rs=15; Ts=0.01; Nn=128; Wp=wp/Ts;%convert digital freq. to analog freq. Ws=ws/Ts; [N,Wn]=buttord(Wp,Ws,Rp,Rs,'s')%compute order and cutoff freq. [z,

%program p308 wp=2000*2*pi; ws=3000*2*pi; Rp=3; Rs=15; Fs=10000; Nn=128; [N,Wn]=buttord(wp,ws,Rp,Rs,'s')%compute order and cutoff freq. [z,p,k]=buttap(N);%compute the analog filter [Bp,Ap]=zp

%program p309 wp=2000*2*pi; ws=3000*2*pi; Rp=3; Rs=15; Nn=128; Fs=10000; [N,Wn]=buttord(wp,ws,Rp,Rs,'s')%compute order and cutoff freq. [z,p,k]=buttap(N);%compute the analog filter [Bp,Ap]=zp

"ANALOG.obj", "ARP.obj", "ETH.obj", "HTTP.obj", "ICMP.obj", "IP.obj", "MAIN.obj", "SERIAL.obj", "TCP.obj", "TIMER.obj", "UDP.obj", "CKSUM.obj", "WEBDOC1.obj" TO "Web51" RAMSIZE(256)