Controlling Runtime Checks

Types of Runtime Checks

In simulation, the code generated for your Embedded MATLAB Function block includes the following runtime checks:

• Memory integrity checks

  These checks detect violations of memory integrity in code generated for Embedded MATLAB Function blocks and stop execution with a diagnostic message.

  Caution   For safety, these checks are enabled by default. Without memory integrity checks, violations will result in unpredictable behavior.

• Responsiveness checks in code generated for Embedded MATLAB Function blocks

  These checks enable periodic checks for Ctrl+C breaks in code generated for Embedded MATLAB functions. Enabling responsiveness checks also enables graphics refreshing.

  Caution   For safety, these checks are enabled by default. Without these checks, the only way to end a long-running execution might be to terminate MATLAB.

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When to Disable Runtime Checks

Generally, generating code with runtime checks enabled results in more lines of generated code and slower simulation than generating code with the checks disabled. Disabling runtime checks usually results in streamlined generated code and faster simulation, with these caveats:

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How to Disable Runtime Checks

Embedded MATLAB Function blocks enable runtime checks by default, but you can disable them explicitly for all Embedded MATLAB Function blocks in your Simulink model. Follow these steps:

1. Open your Embedded MATLAB Function block.

2. In the Embedded MATLAB Editor, select Tools > Open Simulation Target.

   The Configuration Parameters dialog box opens with Simulation Target selected.

3. Under the Embedded MATLAB and Stateflow panel, clear the Ensure memory integrity or Ensure responsiveness check boxes, as applicable, and click Apply.

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Speeding Up Simulation with the Basic Linear Algebra Subprograms (BLAS) Library

PrintFrame Editor

Related Products & Applications

• Simulink
• Control Design
• Signal Processing & Communications
• Model-Based Design
• Physical Modeling
• Verification & Validation

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