MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Instrukcja Użytkownika Pobierz pdf (Strona 23)

Using MATLAB's Interface for External Libraries

1MA171_5e Rohde & Schwarz How to use Rohde & Schwarz Instruments in MATLAB

% switch rf on

instr_rf = 1;

[err] = calllib(vxipnpLib, 'rssmu_SetOutputState', instr_session,

instr_path, instr_rf);

if ( err )

break

end

% cleanup

[err] = calllib(vxipnpLib, 'rssmu_close', instr_session);

if ( err )

break

end

reak

%% evaluate error

f ( err )

errCode = err;

rrLen = 1024;

errMsg = zeros(errLen,1);

disp( '*** Error occured' );

% In the case that a session got created we evaluate the error further

if ( instr_session ~= 0 )

[errCode, errMsg] = calllib( vxipnpLib, 'rssmu_error_message',

instr_session, errCode, errMsg );

errString = sprintf('%s', char(errMsg));

disp( errString );

errMsg = '';

[DummyErr, errCode, errMsg] = calllib( vxipnpLib, 'rssmu_error_query',

instr_session, errCode, errMsg );

errString = sprintf('%s', char(errMsg));

disp( errString );

% ... and we must make sure to disconnect from the device !

calllib( vxipnpLib, 'rssmu_close', instr_session );

end

%% clean up

unloadlibrary(vxipnpLib);

clear all

3.8 Application Example using the 32-bit rsspecan

Instrument Driver

%% Rohde & Schwarz GmbH & Co. KG

% MATLAB calllib example for R&S Specturm Analyzer Instrument Driver

% (RsSpecAn)

% Purpose: Test of loadlibrary/calllib for rsspecan VXIplug&play instrument

% driver doing simple read trace measurement.

% Author: Juergen Engelbrecht, customersupport@rohde-schwarz.com

%% add library path

% check VXIPNPPATH environment variable on your system

addpath 'c:\Program Files\IVI Foundation\VISA\WinNT\Include';

addpath 'c:\Program Files\IVI Foundation\VISA\WinNT\Bin';

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