Software-in-the-Loop Simulation

Test generated code on development computer

A software-in-the-loop (SIL) simulation compiles generated source code and executes the code as a separate process on your host computer. By comparing normal and SIL simulation results, you can test the numerical equivalence of your model and the generated code. During a SIL simulation, you can collect code coverage and execution-time metrics for the generated code.

Apps

SIL/PIL Manager

Verify generated code

Topics

SIL and PIL Simulations
An overview of software-in-the-loop (SIL) and processor-in-the-loop simulations (PIL).
Choose a SIL or PIL Approach
Test code generated from top models, referenced models, or subsystems.
Configure and Run SIL Simulation
Set up and run top-model SIL, Model block SIL, and SIL block simulations.
Unit Test Subsystem Code with SIL/PIL Manager
Perform unit testing on atomic subsystem by using SIL/PIL Manager.
SIL/PIL Manager Verification Workflow
A simplified workflow for verifying generated code.
Simulation Mode Override Behavior in Model Reference Hierarchy
How the simulation mode of the top model or parent model determines the simulation behavior of a model hierarchy.
SIL and PIL Limitations
Modeling and code generation features that are not supported or partially supported by SIL and PIL simulations.

Troubleshooting

Debug Generated Code During SIL or PIL Simulation

Use a debugger to understand the behavior of generated code.

View SIL and PIL Files in Code Generation Report

Produce a code generation report and static code metrics that cover SIL and PIL files.

Numerical Consistency of Model and Generated Code Simulation Results

Determine whether model and generated code simulation results are numerically consistent. Investigate discrepancies.

Featured Examples

Test Generated Code with SIL and PIL Simulations

Use software-in-the-loop (SIL) and processor-in-the-loop (PIL) simulations to test numerical equivalence between model components and generated code.

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