Event Semantics

Synchronize chart and state execution by using events

Control your Stateflow® chart independently of the Simulink® time step by using events.

Topics

Use Events to Execute Charts

An overview of chart response to event broadcasts.

Broadcast Local Events in Parallel States

Use the send operator for directed event broadcasts.

Process Events in States Containing Inner Transitions

No state exit and entry actions are executed when inner transitions occur.

Control Chart Execution by Using Event Actions in a Superstate

Charts execute actions in a superstate before actions in a substate.

View Differences Between Stateflow Messages, Events, and Data

Compare the behavior of messages, events, and data in Stateflow charts.

Featured Examples

Model a Security System

Model a Security System

Model a home alarm system that has multiple intrusion-detection sensors. When the system detects an intrusion, it gives you a short amount of time to disable the alarm. If you do not disable the alarm within the allotted time, the system calls the police.

Open Model
Server Queueing System

Server Queueing System

The simulation of a queueing system for a server processing tasks. There are four Stateflow® charts involved in the process:

Open Model
Tic-Tac-Flow: Model of a Hand-held Game

Tic-Tac-Flow: Model of a Hand-held Game

A variation of the classic tic-tac-toe game with an interesting twist. Only the last three moves of each player count. Thus the user needs to also account for the order in which the opponent has played the last few moves. This adds a nontrivial twist to the gameplay.

Open Model

Stateflow Documentation

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