MATLAB: How to use enumeration defined in an external header file with EMLC without creating an enumeration class in Real-Time Workshop 7.4 (R2009b)

simulink coder

I want to use enumeration defined in an external header file with EMLC without creating an enumeration class. Is this possible?

Best Answer

The ability to define enumeration in an external header file with EMLC without creating an enumeration class is not available in Real-Time workshop 7.4 (R2009b).

The possible workaround is to write an enumeration class in MATLAB defining an enumeration from the header file and adding the custom header file to the MEX code generates using 'getHeaderFile'.

Related Solutions

MATLAB: How to specify a different header file name for each Simulink data object when using the ExportToFile custom storage class with a FlatStructure type in Real-Time Workshop Embedded Coder 4.0 (R14)

The ability to specify the header file name as an instance specific parameter is not available when using the ExportToFile custom storage class with a FlatStructure type in Real-Time Workshop Embedded Coder.

To workaround this issue, create a Custom Storage Class with a storage class type of Other and define the storage class using the Target Language Compiler. Note you will need to use the advanced mode of the CSCDESIGNER:

cscdesigner -advanced

Please navigate to the following location within the Real-Time Workshop Embedded Coder documentation for more information:

 Real-Time Workshop Embedded Coder > Custom Storage Classes

MATLAB: How to generate a custom header file for an enumerated class used in Simulink model by Simulink Coder 8.4 (R2013a)

Every enumerated class has four associated static methods, which it inherits from Simulink.IntEnumType. You can optionally override these static methods to customize the behavior of an enumerated type. The methods are:

getDefaultValue — Returns the default value of the enumerated data type.

getDescription — Returns a description of the enumerated data type.

— Specifies a file where the type is defined for generated code.

addClassNameToEnumNames — Specifies whether the class name becomes a prefix in code.

Ues "getHeaderFile" to prevent the declaration of an enumerated type from being embedded in the generated code, allowing you to provide the declaration in an external file, include the following method in the enumerated class's methods section:

function retVal = getHeaderFile()
     retVal = 'filename';
end

Following codes show how to define a Enumerated class that generate a header file called "BasicColors.h" after code generation:

classdef BasicColors < Simulink.IntEnumType
    enumeration
      Red(0)
      Yellow(1)
      Blue(2) 
    end
methods (Static = true)
      function retVal = getDefaultValue()
         retVal = BasicColors.Blue;
       end
       function retVal = getDataScope()
         retVal = 'Exported';
       end
       function retVal = getHeaderFile()
         retVal = 'BasicColors.h';
       end
    end
end

Best Answer

Related Solutions

MATLAB: How to specify a different header file name for each Simulink data object when using the ExportToFile custom storage class with a FlatStructure type in Real-Time Workshop Embedded Coder 4.0 (R14)

MATLAB: How to generate a custom header file for an enumerated class used in Simulink model by Simulink Coder 8.4 (R2013a)

Related Question