MATLAB: Do I receive a make error in Stateflow when I have a # character in the directory name

##builddirectorynumberpoundrealrtwstateflowtimeworkshop

When I am in a directory with a pound sign, for example #mydir or ##mydir, I receive a make error when I try to simulate my Stateflow model.

 lcc preprocessor fatal: Can't open input file -c 
 "d:\matlab6p5p1\sys\lcc\bin\lcc.exe" -c -Zp8 -DMATLAB_MEX_FILE -noregistrylookup -I"d:\matlab6p5p1\sys\lcc\include"  -I"d:\matlab6p5p1\extern\include"  -I"d:\matlab6p5p1\simulink\include"  -I"d:\matlab6p5p1\stateflow\c\mex\include"  -I"d:\matlab6p5p1\stateflow\c\debugger\include"  
 -I"g:\1427087\giac# "giac_sfun.c" 
 d:\matlab6p5p1\sys\lcc\bin\lccmake: Error code 1

Best Answer

This enhancement has been incorporated in Release 2012b (R2012b).

For previous product releases: All make utilities treat # as a comment character and this leads to generated code failing to compile.

The only workaround is to not to use the # character in the directory name.

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You receive this error because Simulink is unable to delete and/or create a new DLL file for the Embedded MATLAB block. The two most likely causes are:

1) The current directory might not have the appropriate permissions or

2) the previously created DLL is in use by some other model or application and hence MATLAB is unable to delete and re-create it.

To work around the first issue you can set the file permissions for the working directory to allow both read and write access. For the second issue execute the following command at the MATLAB command prompt:

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Then delete the previously created DLL file and try running the model.

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Due to limitations in the simulator, you cannot use the CCS IDE simulator to build models containing RTDX blocks. You will need to have the actual board, the C6701 EVM or the C6711 DSK, in order to be able to use the RTDX blocks.

If you are still interested in using the RTDX blocks with the simulator, we offer the following suggestions.

NOTE: We have not fully tested and qualified this process and therefore we do not officially support this process.

To test using the simulator with RTDX blocks:

1. Please use the demo model 'c6701evmagc' as a reference to build your model containing RTDX blocks.

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where $TI is the directory where Code Composer Studio is installed. (e.g. $TI can be: D:\Applications\ti).

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Once again, we are not aware of what issues or problems may arise if you use this process, and therefore you will have to troubleshoot it on your own.

Best Answer

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MATLAB: Am I receiving a “cannot open output file” error while trying to run a Simulink model with an Embedded MATLAB block

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