Writing S-Functions: Table of Contents (Writing S-Functions)

Writing S-Functions

Overview of S-Functions

What Is an S-Function?
Using S-Functions in Models
How S-Functions Work
Implementing S-Functions
S-Function Concepts
S-Function Examples

Writing M S-Functions

Introduction
Defining S-Function Block Characteristics
Processing S-Function Parameters
Examples of M-File S-Functions

Writing S-Functions in C

Introduction
Building S-Functions Automatically
Example of a Basic C MEX S-Function
Templates for C S-Functions
How Simulink Interacts with C S-Functions
Writing Callback Methods
Converting Level 1 C MEX S-Functions to Level 2

Creating C++ S-Functions

Source File Format
Making C++ Objects Persistent
Building C++ S-Functions

Creating Ada S-Functions

Introduction
Ada S-Function Source File Format
Writing Callback Methods in Ada
Building an Ada S-Function
Example of an Ada S-Function

Creating Fortran S-Functions

Introduction
Creating Level 1 Fortran S-Functions
Creating Level 2 Fortran S-Functions
Porting Legacy Code

Implementing Block Features

Dialog Parameters
Run-Time Parameters
Creating Input and Output Ports
Custom Data Types
Sample Times
Work Vectors
Function-Call Subsystems
Handling Errors
S-Function Examples

Writing S-Functions for Real-Time Workshop

Introduction
Noninlined S-Functions
Writing Wrapper S-Functions
Fully Inlined S-Functions
Fully Inlined S-Function with the mdlRTW Routine
Creating Code-Reuse-Compatible S-Functions

S-Function Callback Methods

mdlCheckParameters
mdlDerivatives
mdlGetTimeOfNextVarHit
mdlInitializeConditions
mdlInitializeSampleTimes
mdlInitializeSizes
mdlOutputs
mdlProcessParameters
mdlRTW
mdlSetDefaultPortComplexSignals
mdlSetDefaultPortDataTypes
mdlSetDefaultPortDimensionInfo
mdlSetInputPortComplexSignal
mdlSetInputPortDataType
mdlSetInputPortDimensionInfo
mdlSetInputPortFrameData
mdlSetInputPortSampleTime
mdlSetInputPortWidth
mdlSetOutputPortComplexSignal
mdlSetOutputPortDataType
mdlSetOutputPortDimensionInfo
mdlSetOutputPortSampleTime
mdlSetOutputPortWidth
mdlSetWorkWidths
mdlStart
mdlTerminate
mdlUpdate
mdlZeroCrossings

SimStruct Functions

Introduction
SimStruct Macros and Functions Listed by Usage
Macro Reference

Overview of S-Functions