problems with RealTimeWorkshop compiler

Hello everybody,

i was trying to build up my PID-Modell with the real-time-workshop to get it run under LabView for easier connecting to a sensor. But the lcc-compiler always brings errors so i checked the preferences again...but i've no idea what the problem is?!

the system-target-file is the nidll-tlc with the language c the error is: "Invalid setting for environment variable MSDevDir or DevEnvDir. The setting is: '' You can verify the setting by checking for the existence of: %DevEnvDir%\..\tools\vsvars32.bat (for Visual C/C++ 9.0) %MSDevDir%\..\..\vc98\bin\vcvars32.bat (for Visual C/C++ 6.0) %DevEnvDir%\..\tools\vsvars32.bat (for Visual C/C++ 8.0)

You must define MSDevDir or DevEnvDir to be: set %DevEnvDir%=<VisualRoot>\common7\ide (for Visual C/C++ 9.0) set %MSDevDir%=<VisualRoot>\common\msdev98 (for Visual C/C++ 6.0) set %DevEnvDir%=<VisualRoot>\common7\ide (for Visual C/C++ 8.0)

This error may be due to an invalid preference file: C:\Dokumente und Einstellungen\FGLuser\Anwendungsdaten\MathWorks\MATLAB\R2010b\mexopts.bat Please run "mex -setup" at the MATLAB prompt to correct"

i first thought i should take a c++ compiler, but in the supported compiler list is the lcc aswell.

thanks a lot for any response!

greetings Hansjörg

[Andreas Goser]

I wonder if creating a basic MEX file works - lie the yprime.c or timestwo.c examples. That would help to sort out whether this is a compiler setup issue or related to the specific interface with the other software.

[Hansjörg]

thanks for your really fast answer and sorry for my delay in answering you.

unfortunately the mex files didn't work. matlab said: unable to complete successfully (??? error using ==> mex at 208)

what do you think, should i change or reinstall my compiler?

or do you think its another problem?

Hansjörg

[Andreas Goser]

I think you shall contact <http://www.mathworks.com/matlabcentral/answers/2495-when-shall-i-contact-mathworks-technical-support-and-how Technical Support>. I know your university has a large license under maintenance.

[Kaustubha Govind]

You can run mex with the -v (verbose) option to see the exact compiler error - this will help us diagnose MEX-specific issues further.

Answer 1

[Kaustubha Govind]

The LabVIEW Simulation Interface Toolkit requires Microsoft Visual C++ compilers to be installed (see System Requirements for version 5.0). LCC is not supported with the Toolkit, which is probably why you see the errors.

[Hansjörg]

thanks!

i'll try to use the ms visual c++....hope is works