sldvextract

Extract subsystem or subchart contents into new model for analysis

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Syntax

newModel = sldvextract(subsystem)
newModel = sldvextract(subchart)
newModel = sldvextract(exportfcnmodel)
newModel = sldvextract(modelmissingslfunctiondef)
newModel = sldvextract(modelmissingslfunctiondef, showModel)

Description

newModel = sldvextract(subsystem) extracts the contents of the atomic subsystem subsystem and creates a model for the Simulink® Design Verifier™ software to analyze. sldvextract returns the name of the new model in newModel. If the model name exists, sldvextract uses the subsystem name for the model name, appending a number to the model name.

example

newModel = sldvextract(subchart) extracts the contents of the atomic subchart subchart and creates a model for the Simulink Design Verifier software to analyze. Specify the full path of the atomic subchart in subchart. If the model name exists, sldvextract uses the subchart name for the model name, appending a number to the model name.

Note

If the atomic subchart calls an exported graphical function that is outside the subchart, sldvextract creates the model, but the new model will not compile.

example

newModel = sldvextract(exportfcnmodel) creates a scheduler model that invokes the export-function model exportfcnmodel for analysis by Simulink Design Verifier. sldvextract returns the name of the new model in newModel. The newModel consists of exportfcnmodel model name with a suffix SldvScheduler. If the model name already exists, sldvextract uses the exportfcnmodel name for the model name, appending a number to the model name.

example

newModel = sldvextract(modelmissingslfunctiondef) extracts a stub model for the model modelmissingslfunctiondef which has missing Simulink function definitions for the Simulink Design Verifier to analyze. It returns the name of the new model in newModel. sldvextract uses the input model name with a suffix SldvStub for the extracted model name, appending a numeral to the model name if that model name already exists.

newModel = sldvextract(modelmissingslfunctiondef, showModel) opens the extracted model if you set showModel to true. Extracted model will be only loaded if showModel is set to false.

Examples

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Extract the atomic subsystem Bus Counter from the sldemo_mdlref_conversion model and copy it to a new model.

openExample('sldemo_mdlref_conversion');
newmodel = sldvextract('sldemo_mdlref_conversion/Bus Counter', true);

Extract the atomic subchart Sensor1 from the sf_atomic_sensor_pair model and copy it to a new model.

openExample('sf_atomic_sensor_pair');
newmodel = sldvextract('sf_atomic_sensor_pair/RedundantSensors/Sensor1',...
		true);

This example uses:

Open Live Script

This example shows how you can analyze a model which consists of periodic function-call subsystems. This example uses the AUTOSAR example model sldvExportFunction_autosar_multirunnables.

1. Open the sldvExportFunction_autosar_multirunnables model.

open_system('sldvExportFunction_autosar_multirunnables');

2. To run the test generation analysis, on the Design Verifier tab, click Generate Tests.

The Simulink Design Verifier Results Summary window indicates that a scheduler model sldvExportFunction_autosar_multirunnables_SldvScheduler.slx is created. You can also generate a scheduler model by using sldvextract.

create_scheduler_model.png

scheduler_model_harness.png

The scheduler model consists of a MATLAB® function block _SldvExportFcnScheduler. The function calls are called periodically as the model consists of periodic function-call subsystem.

The MATLAB® code specifies the order in which the periodic function-call execute. Runnable1 and Runnable2 executes first because the time period is 1 for both of them. After 10 time steps, Runnable3 executes.

scheduler_matlab_code.png

If the model consists of aperiodic function-call subsystems, the scheduler consists of an additional inport FcnTriggerPort. The value of FcnTriggerPort indicates whether to invoke the function-call in a time step.

For example, if Runnable1 is an aperiodic function-call subsystem, the FcnTriggerPort Inport block invokes the scheduler model. This graphic shows the Timing Legend window and the scheduler model for an aperiodic function-call.

scheduler_matlab_code_aperiodic.png

After the test generation analysis, in the Simulink Design Verifier Results Summary window, you see the results that 7/7 objectives are Satisfied.

3. To simulate the test cases and generate a coverage report, click Simulate tests and produce a model coverage report in the Simulink Design Verifier Results Summary window. The software simulates the test cases, collects model coverage information, and displays a coverage report.

4. To view the detailed analysis report, click HTML in the Simulink Design Verifier Results Summary window.

The Schedule for Export Function Analysis section in the Analysis Information chapter lists the schedule for invoking the export functions.

multirunnables_modell_coverage_report.png

See Also

Input Arguments

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Full path to the atomic subsystem, specified as a character vector or string scalar.

Full path to the Stateflow® atomic subchart, specified as a character vector or string scalar.

Full path to the export-function model, specified as a character vector or string scalar.

Full path to the missing Simulink function model, specified as a character vector or string scalar.

Whether to display the extracted model, specified as a logical.

Output Arguments

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Name of the new model, returned as a character vector.

Limitations

Simulink Design Verifier does not support extraction when:

  • A subsystem has reinitialize ports. For more information, see Reinitialize States of Blocks in Subsystem.

  • A model block has Initialize, Reset, Reinitialize, or Terminate event ports. For more information, see model event simulation in the Model block.

Version History

Introduced in R2007a

See Also

Topics