Learn more about Stateflow

Overview of Stateflow Objects

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Graphical Objects Nongraphical Objects For More Information on Stateflow Objects

Graphical Objects

The following table gives the name of each graphical object in a Stateflow chart, its appearance when drawn in the Stateflow Editor (Notation), and the toolbar icon to use for drawing the object.

Name	Notation	Toolbar Icon
State
Transition		Not applicable
History junction
Default transition
Connective junction
Truth table function
Graphical function
Embedded MATLAB™ function
Box
Simulink function

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Nongraphical Objects

You can define data, event, and target objects that do not appear graphically in the Stateflow Editor. However, you can see them in the Model Explorer. See Using the Model Explorer with Stateflow Objects.

Data Objects

A Stateflow chart stores and retrieves data that it uses to control its execution. Stateflow data resides in its own workspace, but you can also access data that resides externally in the Simulink model or application that embeds the Stateflow machine. You must define any internal or external data that you use in the action language of a Stateflow chart. For a full description of data objects, see Defining Data.

Event Objects

An event is a Stateflow object that can trigger a whole Stateflow chart or individual actions in a chart. Because Stateflow charts execute by reacting to events, you specify and program events into your charts to control their execution. You can broadcast events to every object in the scope of the object sending the event, or you can send an event to a specific object. You can define explicit events that you specify directly, or you can define implicit events to take place when certain actions are performed, such as entering a state. For a full description of event objects, see Defining Events.

Target Objects

You build targets to execute the application you program in Stateflow charts and the Simulink model that contains them. A target is a program that executes a Stateflow chart or a Simulink model containing a Stateflow machine. You build a simulation target to execute a simulation of your model. You build an embeddable code generation target to execute the Simulink model on a supported processor environment. You build custom targets to pinpoint your application to a specific environment. For a full description of target objects, see Building Targets.

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For More Information on Stateflow Objects

Stateflow Chart Semantics describes the various Stateflow objects in more detail.

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Stateflow Chart Notation

Rules for Naming Stateflow Objects

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