Book Image

Rapid BeagleBoard Prototyping with MATLAB and Simulink

Book Image

Rapid BeagleBoard Prototyping with MATLAB and Simulink

Overview of this book

As an open source embedded single-board computer with many standard interfaces, Beagleboard is ideal for building embedded audio/video systems to realize your practical ideas. The challenge is how to design and implement a good digital processing algorithm on Beagleboard quickly and easily without intensive low-level coding. Rapid BeagleBoard Prototyping with MATLAB and Simulink is a practical, hands-on guide providing you with a number of clear, step-by-step exercises which will help you take advantage of the power of Beagleboard and give you a good grounding in rapid prototyping techniques for your audio/video applications. Rapid BeagleBoard Prototyping with MATLAB and Simulink looks at rapid prototyping and how to apply these techniques to your audio/video applications with Beagleboard quickly and painlessly without intensive manual low-level coding. It will take you through a number of clear, practical recipes that will help you to take advantage of both the Beagleboard hardware platform and Matlab/Simulink signal processing. We will also take a look at building S-function blocks that work as hardware drivers and interfaces for Matlab/Simulink. This gives you more freedom to explore the full range of advantages provided by Beagleboard. By the end of this book, you will have a clear idea about Beagleboard and Matlab/Simulink rapid prototyping as well as how to develop voice recognition systems, motion detection systems with I/O access, and serial communication for your own applications such as a smart home.
Table of Contents (15 chapters)
Rapid BeagleBoard Prototyping with MATLAB and Simulink
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Simulink code generation


Simulink, a graphical tool for modeling and simulating systems, provides an interactive graphical programming environment and enables rapid prototyping to explore design ideas at an early stage. An attracting feature of Simulink is that you can tune parameters of your design "on the fly" and immediately see what happens on the BeagleBoard, for "what if" exploration.

There are two major kinds of elements in Simulink, namely function blocks and signal lines. As a graphical programming language, a program is presented as a block diagram (referred to as a Simulink model) where blocks are connected by lines. In this section, we will build a simple program by creating a Simulink model and then run that model to play a music file (a *.wav file) on the BeagleBoard. We will also adjust the parameters of the model (in this example model, it is the volume or balance) on the fly.

A Simulink model of a music player

The Simulink model of the music player we are going to build is...