MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Bedienungsanleitung PDF herunterladen (Seite 25)

Using MATLAB's Interface for External Libraries

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

break

end

%% read trace

instr_trace = 1;

instr_timeoutMs = 15000;

instr_arrayLen = instr_sweepPoints;

instr_arrayActualLen = -1;

instr_amplitude = zeros(instr_arrayLen,1);

[err, instr_arrayActualLen, instr_amplitude] = calllib(vxipnpLib,

'rsspecan_ReadYTrace', instr_session, instr_window, instr_trace,

instr_timeoutMs, instr_arrayLen, instr_arrayActualLen, instr_amplitude);

if ( err )

break

do something

lot(instr_amplitude)

% cleanup

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

if ( err )

reak

end

%exit loop

break

end

%% evaluate error

if ( err )

errCode = err;

errLen = 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, 'rsspecan_error_message',

instr_session, err, errMsg );

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

disp( errString );

errMsg = '';

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

'rsspecan_error_query', instr_session, errCode, errMsg );

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

disp( errString );

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

calllib( vxipnpLib, 'rsspecan_close', instr_session );

end

%% clean up

unloadlibrary(vxipnpLib);

clear all

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MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Bedienungsanleitung Seite 25

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