Model configuration for code generation in Simulink

Introduction

Model configuration for code generation helps set up how your Simulink model turns into code. It makes sure the generated code works well and fits your needs.

When you want to create C or C++ code from your Simulink model to run on hardware.

When you need to optimize code size or speed for embedded systems.

When you want to check that generated code meets safety or quality standards.

When you want to customize code generation options like data types or function packaging.

When you want to generate code that integrates easily with other software.

Syntax

Simulink

1. Open your Simulink model.
2. Go to the menu: Simulation > Model Configuration Parameters.
3. In the Configuration Parameters window, select Code Generation.
4. Set the System target file (e.g., ert.tlc for embedded code).
5. Adjust settings like Optimization, Interface, and Toolchain.
6. Click Apply and OK to save.

You can save your configuration settings as a preset for reuse.

Some options depend on the target hardware and code generator you choose.

Examples

This setup generates efficient embedded C code using the GNU GCC compiler.

Simulink

System target file: ert.tlc
Optimization: Execution efficiency
Toolchain: GNU GCC Embedded

This setup generates code for desktop simulation with model reference interface.

Simulink

System target file: grt.tlc
Generate code only: Enabled
Interface: Model reference

Sample Program

This MATLAB script opens a Simulink model named 'simple_model', sets code generation options for embedded C code, builds the model to generate code, and then closes the model.

Simulink

% Open Simulink model
model = 'simple_model';
open_system(model);

% Set code generation parameters
set_param(model, 'SystemTargetFile', 'ert.tlc');
set_param(model, 'GenerateReport', 'on');
set_param(model, 'Toolchain', 'GNU GCC Embedded');
set_param(model, 'Optimization', 'Execution efficiency');

% Build the model to generate code
rtwbuild(model);

% Close the model
close_system(model, 0);

Important Notes

Always verify your code generation settings before building to avoid errors.

Generated code can be large; use optimization settings to reduce size if needed.

Use the Simulink Coder documentation for detailed explanations of each option.

Summary

Model configuration sets how Simulink generates code from your model.

You choose target hardware, optimization, and interface options.

Proper configuration helps create efficient and usable code for your project.