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User-Defined Functions

Custom function blocks such as MATLAB Function, MATLAB System, Simulink Function, and Initialize Function

Use blocks from the User-Defined Functions library to extend Simulink® modeling functionality by creating new types of blocks. You can implement block algorithms using MATLAB, C/C++, and Fortran code.

Blocks

C CallerIntegrate C code in Simulink
C FunctionIntegrate and call external C code from a Simulink model
Function CallerCall Simulink or exported Stateflow function
Initialize FunctionExecutes contents on a model initialize event
Interpreted MATLAB FunctionApply MATLAB function or expression to input
Level-2 MATLAB S-FunctionUse Level-2 MATLAB S-function in model
MATLAB FunctionInclude MATLAB code in models that generate embeddable C code
MATLAB SystemInclude System object in model
Reset FunctionExecutes contents on a model reset event
S-FunctionInclude S-function in model
S-Function BuilderIntegrate C or C++ code to create S-functions
Simulink FunctionFunction defined with Simulink blocks
Terminate FunctionExecute contents on a model terminate event