MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Instrukcja Użytkownika Pobierz pdf (Strona 22)

Using MATLAB's Interface for External Libraries

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

% check VXIPNPPATH64 environment variable on your system

% for the correct path to the installation directory

p1= 'c:\Program Files\IVI Foundation\VISA\Win64\Include';

p2= 'c:\Program Files\IVI Foundation\VISA\Win64\Bin';

addpath(p1);

addpath(p2);

%% load library of R&S driver

vxipnpLib = 'rssmu_64';

vxinpnLibDll = 'rssmu_64.dll';

vxipnpHeader = 'workaround_rssmu.h';

if ~libisloaded (vxipnpLib)

[notfound,warnings]=loadlibrary(vxinpnLibDll, vxipnpHeader, ...

'includepath', p1, ...

includepath', p2, ...

'addheader', 'rssmu.h');

%You can use these functions to get information on the functions available in a

ibrary that you have loaded:

%libfunctions(vxipnpLib, '-full');

%libfunctionsview(vxipnpLib);

%% open VISA session

instr_session = -1;

instr_resource = 'TCPIP::rssmu200a123123::INSTR';

instr_presource = libpointer( 'int8Ptr', [int8( instr_resource ) 0] );

instr_idQuery = 1;

instr_reset = 1;

[err, p8, instr_session] = calllib(vxipnpLib, 'rssmu_init', instr_presource,

instr_idQuery, instr_reset, instr_session );

if ( err )

error ('Connection to instrument failed')

end

while (true)

%% simple settings

% switch rf off

instr_rf = 0;

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

instr_rf);

if ( err )

break

end

% switch 3GPP on

instr_path = 1;

instr_3gppState = 1;

[err] = calllib(vxipnpLib, 'rssmu_SetW3GPPFDDState', instr_session,

instr_path, instr_3gppState);

if ( err )

break

end

% set total power to 0dB

[err] = calllib(vxipnpLib, 'rssmu_W3GPPAdjustTotalPowerto0dB',

instr_session, instr_path);

if ( err )

break

end

% read power back

instr_power = -1;

[err, instr_power] = calllib(vxipnpLib, 'rssmu_GetW3GPPTotalPower',

instr_session, instr_path, instr_power);

if ( err )

break

end

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MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Instrukcja Użytkownika Strona 22

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