
-October 2009-
-WIZnet iMCU Design Contest 2010
-Ciarcia’s Circuit Cellar, Vol. 4
-Latest Circuit Cellar Bonus Material
Awaken the Wonderful Wizard
in YOU! Your creativity and design project could win you a share of $15,000 in
cash prizes and recognition in Circuit Cellar magazine.

The
design contest simply requires the use of WIZnet’s new chip (the W7100) as part
of your embedded project. The W7100 is an Internet MCU integrating a Hardwired
TCP/IP core with an 8051 processor. The resulting integration is known as
‘iMCU.’
The W7100 can make an easy-to-implement platform for
applications that need a network connection. In addition, the 64-KB SRAM and 32-KB
internal buffer make even high-performance Internet applications possible.
WIZnet’s hardwired TCP/IP stack, which includes Ethernet MAC and PHY, has
positioned a market-proven chip (the W5100) in industrial and multimedia
application market for a number of years. By combining the latest hardwired
TCP/IP chip with the benefits of the W5100 and 8051 MCU core, the new W7100
provides a one-chip solution for all your embedded Internet projects.
The W7100 can guarantee cost and time efficiency as well
as the possibility of ‘offloaded’ Internet capability to existing embedded
designs. Moreover, without any knowledge about TCP/IP protocol, W7100 users can
design various applications with WIZnet providing simple SOCKET programs.
Note from Circuit
Cellar:
How do you jumpstart your contest participation?
1.
Visit
www.wizwiki.net and become familiar
with the W7100 and the evaluation
board, the iMCUW7100EVB.
2.
Take
advantage of the $49.00 USD contest discount price on the evaluation board,
which may be ordered through www.FutureElectronics.com, while supplies
last.
3.
Read
the contest Rules.
4.
Register
for a Project Number and enter your
project by June 30, 2010.
5.
Remember
to sign up for the wizwiki.net contest forums. These forums should
serve as a valuable resource for everyone participating in the contest. If
you’re not currently a registered forum member, sign up now.
As always, please keep in mind that Circuit Cellar’s
primary job is publishing a magazine that contains in-depth, complete, and
insightful design application articles. Design contest submissions are often
the fastest way for you to get noticed by our editorial team and start on a
long-term, extremely rewarding relationship with Circuit Cellar that provides
recognition in an international magazine known for excellence in the embedded
systems design community.
You’re encouraged to learn about this latest innovation
from WIZnet and compete for a part of $15,000 in prize money. But that’s just
the beginning. As with any design contest, there are a limited number of
official prizes as listed in the rules. But there are unlimited ways in which
to impress Circuit Cellar with your design skills and insight and be rewarded
for such. Show us what you can do! Good luck.
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The last of the long-awaited digital versions of the Ciarcia’s Circuit Cellar books have been
posted through the Google Books program. Volume 4 is now available for your enjoyment.
For your convenience, a linked list of all available Ciarcia titles is shown
below.
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Problem 1—A newly hired engineer asked one of his coworkers how
to recognize the byte value 01111110. The coworker suggested the following
circuit.

The
company guru, overhearing the conversation, suggested the following change.
Why?

Think You Have a Great EQ Challenge of Your Own?
E-mail your best EQ question and answer
to eq@circuitcellar.com for a chance to be recognized by Circuit Cellar as an
EQ guru.
Answer —The circuit
is a classic implementation of combinatorial DTL (diode-transistor logic) with
the following functionality.

The
original circuit has a problem with noise margin if any of the left-hand 1
inputs are at logic zero; the first transistor is just barely cut off, because
its base-emitter drop is about the same as the forward drop of the input
diodes.
The
additional diode offsets the base of the first transistor downward by a diode
drop, ensuring that it is close to 0 V if any input is at 0 V.
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Be sure to check out the
latest bonus material posted in digital format through Circuit Cellar. The
October issue bonus section, which is open to print-only magazine subscribers
as well, includes the following articles:
Buddy Memory Manager, by
Sitti Amarittapark
Arduino-Based Temperature
Display, by Mahesh Venkitachalam
Find these articles and many
others at Circuit Cellar’s bonus article portal. Click
here
to see the latest additions.
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IT’S TIME TO
GET PRODUCTIVE, GET PUBLISHED, GET PRAISED, AND GET PAID!
Circuit Cellar’s editorial content
comes from designers and programmers like YOU.
Are you interested in publishing an
article in the world’s most well-known magazine about embedded designs and
computer applications? Starting the process is easy. Simply e-mail us an
article proposal or a finished article any time! Direct your e-mails to editor@circuitcellar.com. Write
“Proposal” or “Submission” in the subject line of your email.
The Editorial Department is here to
make your publishing goals come true!
You
may submit an article at any time, regardless of your article’s topic or an
upcoming issue’s “theme.” You shouldn’t feel restricted by the editorial
calendar. We accept articles year-round and review them as they arrive. If we
accept your article, we will schedule it for the next logical issue. We are
currently accepting new articles. The articles we accept in Fall 2009 and
Winter 2010 will be used throughout 2010.