MATLAB: Simulink Library Code Generation

code generatedcustom libraryEmbedded Coderlibrarysharedsimulink

Good morning,

I have various models in Simulink which refers to the same custom made library. When I generate the code for one of these models, the library blocks are generated in a separated file and the functions take the following name:

modelName_libraryBlockName(...)

As I need to generated the code separately for any of my models, I was wondering if it is possible to build a single file for all the library blocks, which uses as function names only the library block name, without including the name of the model itself. The goal would be to have two single .cpp and .h files for all the different models.

Best,

Davide

Best Answer

Yes this is possible, but only if you ahve an Embedded Coder license. You must first configure the library blocks as follows:

Enable code reuse for the library block:

In the library, right-click the MATLAB Function block my_conv_filter and select Block Parameters (Subsystem) from the context menu.
In the Function Block Parameters dialog box, set these parameters:

Select the Treat as atomic unit check box.
In the Function packaging field, select Reusable function from the drop-down menu.

The, you must configure your model to place the generated code in a "shared" location that all models can access:

Select "Simulink" from Simulink menu
Select "Model Configuration Parameters"
Select the "Code Generation" tab on left hand side
Set System Target file to "ert.tlc"
Select "Interface" on left hand side
Set Shared Code Placement to "Shared Location"

Now, when you generate code, the .c and .h file will be in the directory /slprj/ert/_sharesutils

Thanks.

Mark.

Related Solutions

MATLAB: How to convert blocks in Simulink library to C/C++ code in Simulink 7.4 (R2009b)

You can generate C/C++ code out of a Simulink library by placing each library block into a new Simulink model, wrapping each library block into an Atomic Subsystem and generating code for the new model. Specifically, you can follow these steps:

1) Drag and drop all library blocks into a new Simulink model

2) Wrap each library block in a subsystem

3) Set the subsystem as Atomic (Right click -> Subsystem Parameters -> Treat as an Atomic Unit)

4) Set the system to generate code as a reusable function (Right click -> Subsystem Parameters -> 'Code Generation' tab -> set 'Function packaging' to 'Reusable function'

5) Generate code using Real-Time Workshop

The resulting generated code will then contain separate source files for each library block that you have included in the Simulink model. You can chose to use the source files directly in your C/C++ application, or optionally compile the source files into a static or shared library using a third-party compiler.

MATLAB: Do I get multiple conflicting usages of identifier error message when I generate code from a model which has two model references in Real-Time Workshop Embedded Coder 5.4 (R2009b)

The ability to use the same function name in two referenced models is not allowed in code generation using Real-Time Workshop Embedded Coder 5.4 (R2009b).

In this case the function name associated with the library block is appearing in two different referenced models.

To work around this issue, follow the steps below:

1- Open the library model

2- Unlock the library model:

     Edit -> Unlock Library

3- Right click on the subsystem block and select "Subsystem Parameters"

4- Change "Real-Time workshop function name options" to "Auto" and click OK.

5- Save the library model.

Now, you can generate the code from the model.

Best Answer

Related Solutions

MATLAB: How to convert blocks in Simulink library to C/C++ code in Simulink 7.4 (R2009b)

MATLAB: Do I get multiple conflicting usages of identifier error message when I generate code from a model which has two model references in Real-Time Workshop Embedded Coder 5.4 (R2009b)

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