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
About the Authors
About the Reviewers

MATLAB code generation

First up, we are going to look at a simple MATLAB program calculating mean values of 10 numbers. Then we will set a code generation project in MATLAB to generate C code from the MATLAB program and compile the C code in Eclipse.

MATLAB and m-language

MATLAB provides a very powerful high-level programming language, known as m-language or m-script, for numerical computation and data processing. We are going to go through the following steps and quickly take a look at a very simple program written in the MATLAB m-language:

  1. Launch MATLAB and create a folder (for example, C:\myMatlab) as your working folder to save your MATLAB code and project files.

  2. Navigate to your working folder that we just created, through File | New | Function to create an empty MATLAB script file calcavg.m. Type in the following code in the text editor and save it to calcavg.m:

    function avg = calcavg(a) %#codegen

    Here, variable a is the input argument that indeed is an array storing 10 numbers...