ARB demo 2

This demo shows how to upload a waveform to the function generator.

Download MATLAB file: arb2.zip

Contents

Open function generator and scope

fg = gpib('agilent',7,10);
os = gpib('agilent',7,7);
set(fg,'OutputBufferSize',16*1024);
fopen(fg)
fopen(os)
fprintf(fg,'*IDN?');
idn = fscanf(fg);
fprintf('function generator: %s',idn);
fprintf(os,'*IDN?');
idn = fscanf(os);
fprintf('oscilloscope: %s',idn);
clear idn;

function generator: HEWLETT-PACKARD,33120A,0,8.0-5.0-1.0
oscilloscope: AGILENT TECHNOLOGIES,54622A,US40180412,A.01.01

Set fg output load

fprintf(fg,'Output:Load?');
disp(fscanf(fg));
fprintf(fg,'Output:Load INF');

+9.90000E+37

Read ARB catalog

fprintf(fg,'DATA:CATALOG?');
str = fscanf(fg);
disp(str);

"SINC","NEG_RAMP","EXP_RISE","EXP_FALL","CARDIAC","VOLATILE"

Set function generator to ARB

x = linspace(0,1,500);
y = -cos(2*pi*x);
idx = find(y<0);
y(idx)=0;
y=2*y-1;
plot(x,y);
str = sprintf(',%g',y);
fprintf(fg,strcat('DATA VOLATILE',str));
fprintf(fg,'FUNC:USER VOLATILE');

fprintf(fg,'APPLY:USER 500, 2, 0.5');

pause(0.5);

fprintf(os,'Autoscale');

Close down

fclose(fg);
fclose(os);
delete(fg);
delete(os);
clear

Published with MATLAB® 7.6