Embedded Internet Design

by Al Williams (Conducted by)

Overview

Embedded Internet Design explores how to make microcontroller systems that are Internet-active. The book covers two fundamental approaches: using a Java-programmable module, and using a Scenix SX (a traditional, assembly language processor). The advantages are two-fold. First, the Java module allows simple exposition of key Internet concepts. However, most designers that will produce production volumes will be interested in moving on to a less-expensive microcontroller like the SX. Full of practical projects, this book gives the practitioner the experience needed to tackle Internet designs with confidence. The book provides knowledge of the internal working of the Internet, programming in Java, and other skills necessary to design Internet-aware devices. This book will be of special interest to those who have a good grounding in hardware, but don't know the internals of how network and Internet applications work. Java programmers who want more information on embedded hardware will also find the book invaluable.

Product Details

ISBN-13:	9780071374361
Publisher:	T A B Books
Publication date:	03/12/2003
Series:	Tab Electronics Series
Pages:	318
Product dimensions:	7.50(w) x 9.29(h) x 0.71(d)

Table of Contents

	Introduction	ix
Chapter 1	Under the Hood	1
	A Marriage?	3
	Developer Profile	3
	Inside a Web Session	4
	Making a Connection	5
	More about IP Addresses	6
	Floating IP	8
	Decisions	9
	URL Details	9
	Internet Documentation	10
	All about Content	12
	Anatomy of a Document	13
	Formatting	14
	Forms	15
	XML	18
	The Java Connection	19
Chapter 2	A Java Crash Course	21
	Experimenting with Java	23
	Java: Compiled or Interpreted?	24
	Getting Started	25
	Variables, Types, and Constants	25
	Constants	27
	Number Bases	28
	Expressions	28
	Special Operators	29
	Comments	31
	Control Flow	31
	What's Unicode?	32
	Classes and Objects	36
	Methods and Parameters	38
	Where Are the Pointers?	40
	Arrays	42
	Strings	42
	Extending Classes	44
	Basic Type Classes	49
	Numeric Conversions	50
	Statics	50
	Interfaces and Abstraction	51
	Exceptions	53
	Packages and Classpath	56
	Threads	58
Chapter 3	A PC Gateway	65
	Object Power	67
	Using Serial Input/Output	67
	Opening a Port	68
	Stream Basics	69
	Advanced Serial I/O	70
	An Example	71
	SMTP	76
	Inside SMTP	76
	Timeouts, Multiple Lines, and Transparency	78
	Implementation	79
	Just Enough javadoc	94
	E-Mail Wrap Up	95
	Serial Port Events	96
Chapter 4	Introducing TINI	101
	Preparing TINI	102
	What If That Didn't Work?	106
	Logging In	107
	Using Slush	107
	On the Net	107
	No Network?	109
	Building a TINI Program	110
	Testing the Program	111
	A New Default Program	113
	Serial Ports	114
	Freeing the Serial Port	114
	More Practical Serial	117
	RS232 Woes	117
	Inside the Project	118
	The Other Side	121
	About One Wire	123
	Some Network Examples	128
	High-Level Notifications	138
	The Other Side of E-Mail	143
	Goodbye Switch	147
	When Java's Not Enough	155
	All for TINI?	156
Chapter 5	TINI Meets the Web	157
	The Built-In Solution	158
	An Example Server	159
	What's Wrong with That?	169
	Handcrafted	170
	More Open Source	178
	Servlet Basics	179
	Writing Your First Servlet	180
	TINI Servlets	184
	Building for TINI	185
	Configuration	186
	A TINI Servlet	188
	What about Applets?	190
	An Applet Example	191
	Drawing	192
	Networking	193
Chapter 6	Java Jr.	197
	Hardware	198
	Programming	199
	Running the Test Program	200
	Javelin Stamp Architecture	202
	Javelin Stamp I/O	203
	Running a Program	205
	Virtual Peripherals	205
	Reclaiming Memory	206
Chapter 7	Javelin on the Internet	209
	Inside Networking	210
	Javelin UDP Overview	212
	Opening PPP	216
	Sending and Receiving	217
	A Simple Sending Example	219
	A Simple Receiving Example	229
	A Useful Example	234
Chapter 8	Inside Javelin Internet	241
	The Classes	242
	How It Works	243
	Understanding PacketProcessor	244
	Highlights from PPP	245
	Inside UDP	264
	What's Next?	267
Chapter 9	Ready-Made Internet Appliances	269
	The iModem	270
	Challenges	271
	Setup	272
	Sending E-Mail	272
	Using the Javelin	273
	Receiving E-Mail	279
	Limitations	288
	Using the ISP	288
Chapter 10	The Once and Future Internet	291
	The Right Tools for the Job	292
	Looking Forward	295
	About IPV6	295
	Multicasting	296
	What's Next	297
Appendix	Inside PPP	299
	Index	307

Editorial Reviews

The Barnes & Noble Review
Imagine a world where your heater is hooked up to your cell phone! Or perhaps an email is sent to you from an embedded sensor within your air conditioner to remind you that you need to change the filter. The possibilities make your head spin, but those are examples of what embedded systems can do for you if they are linked to the Internet. But, there is a lot to learn about the processors that can get your devices Internet enabled, and this book will take you there.

Author Al Williams does an excellent job of creating for you an Internet-enabled system that requires a blend of skills beyond the traditional hardware skills. Embedded Internet Design is divided into three different sections. In the first section, you'll find valuable background information, a quick introduction to Java, and some Java software that can turn an ordinary PC (or other desktop computer) into a bridge for any RS-232-capable (Recommended Standard 232, computer serial interface, Institute of Electrical & Electronics Engineers [IEEE]) microcontroller. The second section focuses on the Maxim/Dallas Semiconductor Tiny Internet Interface (TINI), which is a small, Java-based microcontroller with impressive networking capabilities. The third section shows you how to use the Parallax Javelin (a small controller that runs a variation of Java) with different types of modems.

The future is wide open on embedded systems. It is almost impossible to imagine all the ways in which this technology will change our lives. For those of you whose job it is to not only imagine these systems but to develop them, this outstanding book is a much-needed tool. John Vacca

John Vacca, the former computer security official (CSO) for NASA's space station program (Freedom), has written 38 books about advanced storage, computer security, and aerospace technology.

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