Mealy, Moore, and Continuous-Time Charts

Implement domain-specific semantics

Select the continuous update method for models that respond to both continuous and discrete mode changes. Use Mealy charts to model finite state machines whose output is a function of current input and the current state. Use Moore charts to model finite state machines whose output depend on only the current state.

Topics

Continuous-Time Systems

Continuous-Time Modeling in Stateflow

Simulate systems that exhibit modal behavior in continuous time.

Store Continuous State Information in Local Variables

Define continuous-time variables and their derivatives.

Mealy and Moore Charts

Overview of Mealy and Moore Machines

Create charts that implement Mealy and Moore state machine semantics.

Design Considerations for Mealy Charts

Use best practices for implementing Mealy semantics in charts.

Design Considerations for Moore Charts

Use best practices for implementing Moore semantics in charts.

Convert Charts Between Mealy and Moore Semantics

Achieve equivalent chart behavior when you change state machine types.

Initialize Persistent Variables in MATLAB Functions

Specialized semantics impact the way that a function initializes persistent data.

Featured Examples

Model Newton's Cradle

Model a popular toy called "Newton's cradle" which consists of a row of seven identical balls which are hung from a common height. At rest they are arranged such that they just touch each other. One or more balls from one end are then raised from their rest position and released.

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Modeling Newton's Cradle with Virtual Reality

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Sequence Recognition by Using Mealy and Moore Charts

Use Mealy and Moore machines for a sequence recognition application in signal processing. For more information, see Overview of Mealy and Moore Machines.

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Karplus-Strong Algorithm by Using Moore Charts

A simple implementation of the Karplus-Strong algorithm for string synthesis by using Stateflow® charts with Moore semantics. For more information, see Design Considerations for Moore Charts.

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Model a Bouncing Ball in Continuous Time

Simulate a hybrid system that responds to continuous and discrete mode changes.

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Model a DC Motor in Stateflow

Use continuous-time semantics to model a permanent magnet DC motor.

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Model the Dynamics of Moving Billiard Balls

Model the opening shot in a billiards game by using continuous-time matrix variables. In the model, a Stateflow® chart simulates the dynamics of a hybrid system that has a large number of discontinuities. For more information, see Continuous-Time Modeling in Stateflow.

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