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-October 2009-

 

-WIZnet iMCU Design Contest 2010

-Ciarcia’s Circuit Cellar, Vol. 4

-EQ Interactive

-Latest Circuit Cellar Bonus Material

 

 


Circuit Cellar and WIZnet Launch the iMCU Design Contest 2010

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.

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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.

 

 


Ciarcia’s Circuit Cellar, Vol. 4

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.

 

Ciarcia’s Circuit Cellar Complete Series

Vol. 1

Vol. 2

Vol. 3

Vol. 4

Vol. 5

Vol. 6

Vol. 7

Build Your Own Z80 Computer

 
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EQ Interactive

Problem 1—A newly hired engineer asked one of his coworkers how to recognize the byte value 01111110. The coworker suggested the following circuit.

http://www.circuitcellar.com/library/eq/158/eq0270_1.gif

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

 

http://www.circuitcellar.com/library/eq/158/eq0270_2.gif

 

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.

http://www.circuitcellar.com/library/eq/158/eq0270_3.gif

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.

 


Latest Circuit Cellar Bonus Material

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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PUBLISHING OPPORTUNITIES

 

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.  

 

 

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