MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Instrukcja Użytkownika Pobierz pdf (Strona 21)

Using MATLAB's Interface for External Libraries

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

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 );

%% clean up

nloadlibrary(vxipnpLib);

clear all

3.7 Application Example using the 64-bit rssmu

Instrument Driver

Please refer to section 1.2 for software prerequisites before executing the following

MATLAB source code.

Due to a not supported calling convention of MATLAB, the following workaround has to

be installed to successfully load the 64-bit VXIplug&play instrument driver library.

Please create a file workaround_rssmu.h for the rssmu 64-bit application example with

the following content:

#undef _LDSUPPORT

#define __fastcall

#include "rssmu.h"

This file has to be copied to the VXIplug&play include directory. This is typically stored

in the following environment variable: VXIPNPPATH64 (e.g. c:\Program Files\IVI

Foundation\VISA\Win64\Include).

Example source code for MATLAB 2010b

%% Rohde & Schwarz GmbH & Co. KG

% MATLAB calllib example for Vector Signal Generator

% R&S SMU200A or R&S SMBV100A (etc) instrument driver (rssmu)

% Purpose: Test of loadlibrary/calllib for rssmu 64-bit VXIplug&play instrument

% driver

% The example configures 3GPP on a Vector Signal Generator

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

%% setup up the mex compiler before the first run

%mex -setup

%% add library path

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MATLAB INSTRUMENT CONTROL TOOLBOX - RELEASE NOTES Instrukcja Użytkownika Strona 21