How can I output the Simulink Model Version in model_initialize c function?

Hi,

I am trying to ouput the model version information in the generated c code. Preferable would be to have it generated in the model_initialze function.

But curretly I am facing the problem that both commands to retrieve the model version information are not usable with the ert code generator:

1) info = Simulink.MDLInfo('mymodel') % works only in releases after R2009b

2) modelVer = get_param(‘modelname’, 'versionLoaded')

Whats the best way to get the version info into the code?

Thanks

Michael

Answer 1

[Chidvi Modala]

You may follow these steps to include MATLAB version, Subversion revision number, and code generation settings in auto-generated code from Simulink models.

• Create a "custom section" in the code templates using the procedure given in the following documentation page.http://www.mathworks.com/help/ecoder/ug/generate-source-and-header-files-with-a-custom-file-processing-cfp-template.html

• In that custom section, add a comment block with the information which you want to include in the auto-generated code.

• For MATLAB version you can use the following code.

%openfile tmpBuf
/*
MATLAB Version : %<FEVAL("version", "-release")>
*/
%closefile tmpBuf
%<LibAddSourceFileCustomSection(modelC,"Includes","Myincludes")>
%<LibSetSourceFileCustomSection(modelC,"Myincludes",tmpBuf)>
Which resulted in this:
/*
MATLAB Version : 2015a
*/

• The SVN revision is a little trickier. There is no direct way to access the revision from the command line, so the SVN command line needs to be used instead.

>> !svn info -r HEAD [[filename]]

Path: [[filename]]

Name: [[filename]]

URL:

Repository Root:

Repository UUID:

Revision: 1059 <----Revision number!

Node Kind: file

Last Changed Author:

Last Changed Rev:

Last Changed Date:

• Note the presence of the revision number. You can use the FEVAL command in TLC to execute an m-function to call the SVN command and parse out the revision number.

• Alternatively, you can also use the following command to return the data in an XML format which will be easier to parse through.

>> !svn info -r HEAD [[Filename]] --xml

• To include code generation settings, you can use FEVEL command in TLC to execute an m-function which will have many "get_param" calls to obtain all the code generation parameters of your interest. To know the parameter name, simply right-click and click "What's this?" on the parameters in the "Code Generation" pane of "Model Configuration Parameters". A window will appear with all details of that parameter.

[Michael Frena]

Thanks Chidvi, that solved my issue!

[Michael Frena]

In fact to output the model version I added the following function call to the tlc file:

%openfile tmpBuf
modelVersion = 0b%<FEVAL("getVersionInfo")>;
%closefile tmpBuf
%<LibSetSourceFileSection(modelC,"Declarations",tmpBuf)> 

I defined the getVersionInfo m-function like this:

function verOut = getVersionInfo()
    verIn = get_param(gcs, 'ModelVersion');
    VersionInfo = strsplit(verIn, '.');
    major = bitshift(str2num(VersionInfo{1}),12,'uint16');
    minor = uint16(str2num(VersionInfo{2}));
    verOut = dec2bin(major + minor);    
end