Writing S-Functions

Tuning Runtime Parameters

Tuning a dialog parameter tunes the corresponding runtime parameter during simulation and in code generated from the model only if the dialog parameter meets the following conditions:

• The S-function marks the dialog parameter tunable, using ssSetParameterTunable.
• The dialog parameter is a MATLAB array of values of the standard data types supported by Simulink.
• The S-function has one or more input ports.

Note that you cannot tune a runtime parameter whose value is a cell array or structure.

Updating Run-Time Parameters

Creating Input and Output Ports

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