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

Interfacing sensors via digital I/O in Simulink


Congratulations, now the hardware system is ready to use. Let's get back to the software design. Here we will introduce the simpler approach—the Simulink method to drive the ZMotion sensor through the built-in BeagleBoard Support Package. The introduction of Simulink has been described in the previous chapter, based on which we will be able to achieve this aim quite easily.

First, let's start a new Simulink model and open the Simulink library by typing simulink in the command window of MATLAB. Locate Simulink Support Package for BeagleBoard Hardware in the Simulink library browser and click on it; you will easily see that the GPIO driver has already been provided by the GPIO Read and GPIO Write blocks. Please go through the following steps to set up a new Simulink model to drive the ZMotion module through the BeagleBoard:

  1. Simply drag a GPIO Read block into the system model, as shown in the following screenshot. Then double click on it to configure...