MATLAB: Do I receive an error when generating code from a Stateflow model with MATLAB function calls in Real-Time Workshop 7.0 (R2007b)

simulink coder

I created a model in Stateflow with some calls to MATLAB functions using ML namespace operator. When I generate code for the model I receive the following error :

 RTW incompatible MATLAB function

Best Answer

This error is due to the fact that the ability to generate code for MATLAB function calls in Stateflow is not available in Real-Time Workshop 7.0 (R2007b) as specified in the documentation :

 <http://www.mathworks.com/access/helpdesk/help/toolbox/stateflow/ug/f0-59542.html#brbyg21>

As a workaround you can call MATLAB functions in Embedded MATLAB functions (EML) which is supported by Real-Time Workshop for a subset of MATLAB functions.

Here is some documentation about using EML in Stateflow :

 <http://www.mathworks.com/access/helpdesk/help/toolbox/stateflow/ug/f6-6010.html>

Here is some documentation about supported MATLAB functions for EML :

 <http://www.mathworks.com/access/helpdesk/help/toolbox/eml/ug/bq1h2z7-9.html>

Related Solutions

MATLAB: How to build a model containing a Stateflow chart using MATLAB functions in a transition with Real-Time Workshop Version 7.3 (R2009a)

It is not possible to build Stateflow charts containing mlExpressions even if the used MATLAB functions are part of the Embedded MATLAB function library.

As a workaround you can create an Embedded MATLAB function in your stateflow chart which is implementing the mlExpression that was previously used in the transition.

Now you can call the Embedded MATLAB function in the transition and build the model with Real-Time Workshop. Make sure that you are using only functions from the Embedded MATLAB function reference subset inside the Embedded MATLAB function. The subset of supported functions can be found at:

>> web([docroot,'/toolbox/eml/ug/bq1h2z7-9.html'])

MATLAB: Does the generated code contain temporary copies of the inputs if the model contains an Embedded MATLAB function with subfunctions when using Real-Time Workshop Embedded Coder 5.0 (R2007b)

The ability to force a subfunction to be inlined in the generated code is not available in Real-Time Workshop Embedded Coder 5.0 (R2007b) and prior versions of Real-Time Workshop Embedded Coder.

In Real-Time Workshop Embedded Coder 5.1 (R2008a), there is an option "eml.inline('always')" which forces inlining of the current function in generated code. In order to inline a function in the generated code, insert the following code inside the function.

eml.inline('always') ;

Additional information on this option can be found at the following link:

 <http://www.mathworks.com/access/helpdesk/help/toolbox/eml/ug/eml.inline.html>

Best Answer

Related Solutions

MATLAB: How to build a model containing a Stateflow chart using MATLAB functions in a transition with Real-Time Workshop Version 7.3 (R2009a)

MATLAB: Does the generated code contain temporary copies of the inputs if the model contains an Embedded MATLAB function with subfunctions when using Real-Time Workshop Embedded Coder 5.0 (R2007b)

Related Question