System Derivatives

Specify external system derivative code

• 

Libraries:
Simulink Coder / Custom Code

Description

For a model or nonvirtual subsystem that includes the System Derivatives block and a block that computes continuous states, the code generator adds external code, which you specify, to the SystemDerivatives function that it generates. You can specify code for the code generator to add to the declaration, execution, and exit sections of the function code.

If you include this block in a referenced model, the code generator ignores the block for simulation target builds, but processes the block for other system target files.

Note

This block is intended for inserting arbitrary custom code into the generated code in specific locations. See the C Caller and C Function blocks, which are more typically used for integrating custom algorithmic code into a model.

Examples

Integrate External C Code into Generated Code by Using Model Configuration Parameters

Place external code in generated code by using model configuration parameters.

• Open Script

Parameters

System Derivatives Function Declaration Code — Code to add to the declaration section of the generated function

no default

Specify code that you want the code generator to add to the declaration section of the SystemDerivatives function for the model or subsystem.

System Derivatives Function Execution Code — Code to add to the execution section of the generated function

no default

Specify code that you want the code generator to add to the execution section of the SystemDerivatives function for the model or subsystem.

System Derivatives Function Exit Code — Code to add to the exit section of the generated function

no default

Specify code that you want the code generator to add to the exit section of the SystemDerivatives function for the model or subsystem.

Version History

Introduced in R2006a