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Embedded Linux will help the user: select an Embedded Linux platform based on hardware requirements; build and boot a custom Linux kernel for the platform; remote debug programs running on the platform using GNU tools; connect data acquisition and control electronics/peripherals using the platform's serial, parallel, USB, I/O port and I2C interfaces; interface the peripherals to the kernel and applications using modules; collect, control, store and present data via open source protocols and applications; and analyze Embedded Linux vendor product offerings.
- Sales Rank: #2138758 in Books
- Brand: Brand: Addison-Wesley Professional
- Published on: 2002-03-17
- Released on: 2002-03-07
- Original language: English
- Number of items: 1
- Dimensions: 9.10" h x 1.10" w x 7.30" l, 1.55 pounds
- Binding: Paperback
- 432 pages
- Used Book in Good Condition
From the Back Cover
Embedded Linux covers the development and implementation of interfacing applications on an embedded Linux platform. It includes a comprehensive discussion of platform selection, crosscompilation, kernel compilation, root filesystem creation, booting, remote debugging, real-world interfacing, application control, data collection, archiving, and presentation.
This book includes serial, parallel, memory I/O, USB, and interrupt-driven hardware designs using x86-, StrongARM�-, and PowerPC�-based target boards. In addition, you will find simple device driver module code that connects external devices to the kernel, and network integration code that connects embedded Linux field devices to a centralized control center. Examples teach hardware developers how to store and activate field bits and deliver process information using open source software. If you are a hardware developer, software developer, system integrator, or product manager who's begun exploring embedded Linux for interfacing applications, this book is for you.
- Select an embedded Linux platform (x86, StrongARM�, and PowerPC� architectures are covered)
- Create a cross-compiling and debugging development environment
- Build a custom Linux kernel for each architecture
- Create a minimum root filesystem
- Boot the custom Linux kernel on three target boards with x86, SA-1110, and MPC860 microprocessors
- Remote debug programs running on a target board across an ethernet network using GNU tools
- Connect data acquisition and control electronics/peripherals using the microprocessor's serial, parallel, memory I/O, and USB interfaces
- Measure average interrupt latencies for the x86, SA-1110, and MPC860 microprocessors and design an interrupt-driven process timer with 1mS accuracy
- Interface the peripherals to the kernel and applications using device driver modules
- Collect, control, store, and present data via open source protocols and applications
- Analyze embedded Linux vendor product offerings
0672322269B03282002
About the Author
Craig Hollabaugh, Ph.D., first administered Sun� and Digital� workstations while pursuing a Ph.D. in electrical engineering at Georgia Institute of Technology. His first embedded design, US Patent #5,222,027, remotely monitors a petroleum process. In 1995, at Wireless Scientific�, he began using Linux for industrial control.
Craig currently consults for three companies from his home in Ouray, Colorado. He developed the Proteus Scalable Node™ code for Antec. At Clifton, Weiss and Associates, he's a member of a carrier-class telecommunications network design team. He's also designing FM, MP3, and Bluetooth™ headset electronics for Arriva�.
0672322269AB03282002
Excerpt. � Reprinted by permission. All rights reserved.
This is an exciting time. The proliferation of Internet technology has transformed our concept of information. 24 hours per day, people rely on network devices for business and personal use. Over time, this dependence will grow further. Today's network devices, such as servers, routers, and desktop computers, form the Internet's infrastructure. Tomorrow's devices will control your home's temperature, maintain inventory levels at your business, and monitor automobile traffic patterns. Only a handful of the billions of processors produced each year go into desktop or server computers. The remaining processors monitor and control other facets of the world.
Individuals and businesses want smart, network-connected, devices to improve their lives, their efficiency, and their bottom dollar. These devices must be simple to operate, reliable, and inexpensive. This is where Linux comes in. Advances in technology accompanied by competitive pricing allow Linux to move from the desktop and server environment to embedded devices. Linux offers reliability, features, open-source code, and a proven track record; these features make it perfectly suited for embedded system designs. In this book, you will find information to create an embedded Linux foundation. You can then extend this foundation in your own designs.
Benefits of This BookWhen I first started researching material for this book, I assumed that online embedded Linux information was like other Linux information--plentiful and well documented. I quickly discovered that my assumption was wrong. I found embedded Linux documentation to be sparse, scattered, incomplete, and sometimes dated. This was discouraging and invigorating at the same time. Although I worried about being able to find adequate information, I was further convinced of the need for this book. People are designing embedded products with Linux, so the information and knowledge are out there; it just hasn't all been in one place until now.
As an instructor, I have determined that students best understand and retain theoretical concepts and ideas when accompanied by examples. When students see a concept in action--whether it is a robotic arm movement, a voltmeter reading, or an oscilloscope waveform--they're most likely to later apply that concept to solve their own problems. That's why this book is full of step-by-step examples. You will learn through the example and be able to apply that knowledge to your own designs.
What This Book CoversThis book includes a complete series of real-world interfacing examples designed to introduce embedded Linux from hardware and software perspectives. After you create an embedded Linux development environment, you will step through hardware and software interfacing examples, using asynchronous serial communication, the PC parallel port, USB, memory I/O, synchronous serial communication, and interrupts. All interfacing examples are then tied together using system integration. All this material is presented by using a winter resort automation project called Project Trailblazer. You can find the book's source code and scripts at www.embeddedlinuxinterfacing.com.
The following text briefly summarizes each chapter.
Chapter 1, "Introducing Embedded Linux," describes the brief history of Linux as an embedded operating system and the implications of using open-source software in product design.
Chapter 2, "System Architecture," introduces a winter resort automation project called Project Trailblazer and develops a series of project requirements. Project Trailblazer and its requirements form the basis for the book's interfacing examples.
Chapter 3, "Selecting a Platform and Installing Tool Sets," describes the process of platform selection. Four target boards--which use x86, StrongARM, and PowerPC processors--are selected for Project Trailblazer. This chapter then describes the creation of an embedded Linux development workstation called tbdev1. All the development tools are either installed or compiled, including the cross-compiled tool chain for the StrongARM and PowerPC processors.
Chapter 4, "Booting Linux," describes the Linux boot process, from power-on to the bash prompt. Using a minimum root filesystem, each target board is booted using Linux version 2.4.
Chapter 5, "Debugging," configures gdb and gdbserver for target board debugging over the Ethernet network. A cross-compiled version of helloworld is remotely executed and debugged.
Chapter 6, "Asynchronous Serial Communication Interfacing," describes the Linux serial port device driver for control of port signals and buffers. An RFID tag reader, an LCD display, and control circuitry are interfaced to the Linux serial port.
Chapter 7, "Parallel Port Interfacing," describes interfacing AC circuits to an x86 target board's parallel printer port. A custom device driver called helloworld_proc_module that uses a /proc directory entry is introduced.
Chapter 8, "USB Interfacing," describes connecting a camera and speakers for visual input and audio output to a target board's USB port.
Chapter 9, "Memory I/O Interfacing," describes interfacing AC circuits to the StrongARM and PowerPC target boards' CPU buses.
Chapter 10, "Synchronous Serial Communication Interfacing," describes SPI and I2C connections and communications. A low-cost SPI temperature sensor and I2C LED display driver are interfaced to the target boards.
Chapter 11, "Using Interrupts for Timing," describes Linux timing sources and the measurement of each target board's average interrupt latency. An event timer with 1ms accuracy is developed to measure race times.
Chapter 12, "System Integration," describes the creation of the Project Trailblazer database. Target and server bash scripts are developed, using this database for collection and distribution of temperature, image, and authentication data.
Chapter 13, "Final Thoughts," summarizes the interfacing projects and discusses embedded Linux topics that are not addressed elsewhere in the book.
Who This Book Is For
If you are a hardware engineer, software developer, system integrator, or product manager who's begun exploring embedded Linux for interfacing applications, then this book is for you. The book's comprehensive interfacing examples are simple, requiring only a basic understanding of digital logic design, C and bash programming, and Linux system administration.
Conventions Used in This Book
This book uses several common conventions to help teach embedded Linux.
The typographical conventions used in this book include the following:
- Commands and computer output appear in a monospaced computer font.
- Commands you type appear in a boldfaced computer font.
- Italics are used to introduce you to new terms.
In addition to typographical conventions, this book includes tips, which look like this:
TIPInformation that offers shortcuts and solutions to common problems is highlighted as a tip.
0672322269P03282002
Most helpful customer reviews
0 of 0 people found the following review helpful.
Great book. All the knowledge still apply.
By Hong
This book is directly bundled with a real world project. It explains in depth of the Linux development.
The source code is stored in the author's personal website.
22 of 23 people found the following review helpful.
Slightly Out of Date but still well worth the purchase
By Yetanotherguy
As of 4/2004, the book relies on a free distribution of Hard Hat linux that is no longer available on Montavista's site (as they charge $25K for a single seat, I guess they felt they were giving too much away ;-) HOWEVER: Hollanaugh has copies of them with all of his scripts on his site, so look for them there. His scripts are also now modified to point to the new locations. Though even this distribution is somewhat out of date, this book does a pretty reasonable job of getting you through it all. I found finding free (useful, current) distributions of embedded linux very hard to find but eventually did.. Check out [...] and store.yahoo.com/snapgear/snemlidi.html for current multiplatform distributions. The denx distribution ELDK appears to have morphed from the original Hard Hat distibution as many of the utilities still exist, I used this and was able to "generally" follow along. It's a more recent distribution and supports more platforms (at least for the PPC). I would definately repurchase this book again..
His site is:
[...]
5 of 6 people found the following review helpful.
Great Reference, Odd Story format
By T. Fitzpatrick
This book is clearly the best reference I have for embedded projects under linux; future and present inclusive. The author covers USB device integration quite well, and gives a well worded approach to mounting and setting up your own usb-devfs.
Along with clear examples, the author mainly tries to format the text from an on-lookers prospective to an "embedded ski lift monitor" project- i.e. "My data from working along-side the team" Great effort there-
Another pro to this book is that there are many code samples (all but one I got working, first try) that keep the flow of the book geared towards a beginning hardware-level programmer, with teach by example in mind.
The biggest down side to the text is the beginning material about setting up the workspace environment. A friend tried the same book, and had much trouble simply because they didn't know what pitfalls to expect when installing Debian. Although, the setup does allow for multiple-processor compilations of source code. A Great plus, and another reason for me using the book as a reference.
Out of all the good and bad, this book earned the 4 star rating and with honors. If you want a place to begin embedded systems, and aren't weary of installing a fresh copy of an older model of Debian, have at this book!
Hope this helps-
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