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Modeling Mode Logic in Embedded MATLAB

by Kiran Kintali

17 Aug 2007 (Updated 14 Aug 2008)

Code covered by BSD License

Implementing Mealy and Moore FSMS in an Embedded MATLAB block

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Description

A finite state machine is a representation of a reactive system. In an event-driven system, the system makes a transition from one state (mode) to another prescribed state, provided that the condition defining the change is true.

Stateflow is the best tool for modeling finite state machines. It provides very sophisticated capabilities to build hierarchical and parallel state machines, temporal logic and state entry/during/exit actions etc.,

However there are many Signal Processing and Communications applications where in when writing a very data flow centric algorithms, there comes a need to write a simple controller embedded in the algorithm.This example shows how to implement such a simple mealy or more state machine in Embedded MATLAB control using control flow constructs.

Mealy: y = f(x,u)
all actions are condition actions and outputs are function of state and input

Moore: y = f(x)
all actions are state actions and outputs are pure functions of state only

Required Products

Simulink

MATLAB release

MATLAB 7.4 (R2007a)

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Everyone's Tags	embedded matlab(2), fsm, hdl, mealy, moore
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Updates
14 Aug 2008	add to eML category

Tag Activity for this File
Tag	Applied By	Date/Time
embedded matlab	Kiran Kintali	22 Oct 2008 09:23:19
fsm	Kiran Kintali	22 Oct 2008 09:23:19
hdl	Kiran Kintali	22 Oct 2008 09:23:19
mealy	Kiran Kintali	22 Oct 2008 09:23:19
embedded matlab	Kiran Kintali	22 Oct 2008 09:23:19
moore	Kiran Kintali	22 Oct 2008 09:23:21

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