
THE MAGAZINE FOR COMPUTER APPLICATIONS
Circuit Cellar Online
offers articles illustrating creative solutions
and unique applications through complete projects, practical
tutorials, and useful design techniques. |
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ALL
ABOARD THE CLEAN ENGINE |
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Automotive Emissions
and Onboard Diagnostics
by John West & Mark Stachew
As efforts are
made to keep our environment pollution-free, automobiles are being
put to the test with even stricter standards. To meet these emissions
requirements, manufacturers have turned to more electronically controlled
systems using sensors. Strategies are getting more complicated and
require more control code. John and Mark see a future where automotive
microcontrollers will start to look more like desktop systems in terms
of bandwidth, "evolving faster than you can step on the gas."
June
2001
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PORTING
MICROC/OS-II TO THE TS-2800 EMBEDDED PC |
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by Robert
Bowen
As his designs
started getting more complicated, and he found they were not reusable
from system to system, Robert began to turn his focus to new development
programs. Demonstrating the advantages of using an embedded PC and
real-time kernel, he took advantage of open source programming tools
and searched for a real-time executive. It all makes for more capability,
complex I/O, and high-speed data acquisition.
June
2001
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USING
A BOOT MONITOR IN EMBEDDED SYSTEMS |
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Part
2: Building on the Basics
by Ed
Sutter
Last month, Ed
got us started with the exception handlers in place and basic flash
interfaces initialized. Picking up where he left off last month, this
time around he starts the process of breaking away from just being
a simple boot monitor. Moving forward, you can now overlay a format
on the section of flash memory to be allocated to the tiny flash file
system. The design goal is to provide a good amount of flexibility
without overdoing it.
June
2001
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AN
ELECTRONIC LITESHOW DISPLAY |
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Part 1: The
Electronics Behind the Lights
by James
Antonakos
James has a fascination
with electronics, mainly flashing lights on and off. His LiteShow
display of 384 lamps makes for an interesting article this month.
By putting groups of lamps together, you can create letters, words,
and graphics, all individually controlled by only three signals from
the PC printer port. Working with some students, he shows them how
to design their own version of a printed circuit board.
June
2001
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SPECIAL
FEATURE TAKE MY COMPUTER, PLEASE! |
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Part 3: Retro
Humor Ciarcia Style
by Steve Ciarcia
Way back at the dawn of the microcomputer age, Steve Ciarcia was
blazing a trail (sometimes literally) through the hardware and software
issues of the era. At the request of many of our readers, we've brought
back a series of articles, written by Steve, chronicling the design
adventures of those early days in the Circuit Cellar. This month,
it's chapter one from Take My Computer, Please!
June
2001
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AND
THE LIST GOES ON... |
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Putting
Together Parts Lists
by George Martin
With promises
of fame, George tries to entice you into submitting an entry to Trinity's
Fire Fighting Home Robot Contest. But before you build that bot, you're
going to have to buy the parts. It may seem like a daunting task at
times, but whatever you do, you need the parts to do it. The simplest
way to go about it is to create a list and a purchase order. From
there, you can start cashing those winning checks.
June 2001
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ESCAPE
TO SF |
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by
Tom Cantrell
The Embedded System
Conference always provides a lot of food for thought, and Tom shows
us that this year's event was no exception. Having outgrown San Jose,
San Fran is now home to ESC, with a whole new wave of applications
opening up. Voice recognition gear was probably the hottest item on
the scene, along with web-enabling and listening chips. Will the spoken
word replace keyboards? Watch and listen for the answer.
June 2001
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ASK
US |
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Got Questions? Want Answers?
ASK US
Browse Q&As from other engineers
or submit your tough technical questions to the ASK US team and let
us help keep your project on track or simplify your design decision.
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WHAT'S
YOUR ENGINEERING QUOTIENT? |
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Test
Your EQ presents some basic
engineering problems for you to test your engineering quotient.
Problem 1What
is resistance as seen between terminals A and B in the following infinite
network?

Problem 2What
is the output of the following circuit, assuming that all the flip-flops
are reset at power-on. What is this circuit popularly known as?

.
The
rest of this month's questions
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RESOURCE
LINKS |
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Each
month Circuit Cellar's Resource Links provide helpful links
and information on a variety of featured topics.
How
LCDs Work
by
Rick Prescott

HyperTransport
by
Brant Schroeder
Accelerated
Graphics Port (AGP)
by
Naveen PN
Jini
Technology
by
Naveen
PN
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NEW
PRODUCT NEWSedited by Rick Prescott |
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Temperature
and Humidity Measurments

LCD
Backlight Driver 
Automatic
Ringdown Unit 
Touch-Pad
Remote Control 
Flat
Panel-Based Computer System
Othello
Direct Conversion Radio
Passive
Entry Transponder/Encoder 
Hand-Held
Terminal 
New Product submissions
may be sent to Rick Prescott
4 Park St. Vernon, CT 06066
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PRIORITY
INTERRUPT |
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An Embedded Future
by Steve Ciarcia
Read Steve Ciarcia's latest editorial
exclusively presented by AVNET.
June 2001
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CIRCUIT
CELLAR's Print Magazine |
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Take advantage of more than 12 years of engineering editorial
experience with Circuit Cellar's print magazine! Full of
unique, application-oriented articles.
Come see what's in this month's publication!
June 2001
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COPYRIGHT |
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CIRCUIT CELLARý Online,
(ISSN 1527-8131) and Circuit Cellar are published monthly by Circuit
Cellar Incorporated, 4 Park Street, Suite 20, Vernon, CT 06066 (860)
875-2751.
Entire contents copyright
ý 2001 by Circuit Cellar Incorporated and eChips, Inc. All rights
reserved. Circuit Cellar and Circuit Cellar INK are the registered
trademarks of Circuit Cellar Inc. Reproduction of this publication
in whole or in part without written consent from Circuit Cellar Inc.
is prohibited. Disclaimer
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