Circuit Cellar Online -This Month

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.

	DESIGNING WITH THE MMC2107
		by David Gonzales Isn't the goal always to design a complex system using a minimum amount of components? This month David discusses the key elements of a general-purpose microcontroller and their use in a real-time application. The peripheral and processor interaction is essential for collecting, processing, and outputting data and, subsequently, you can't fully appreciate this interaction without a review of the microcontroller functions. That's just the beginning. April 2001
	AN HC11 FILE MANAGER
		Part 1: Laying the Foundation by Walter Krawec The best place to start following this series is at the beginning, when the foundation is poured. Building this project from the ground up, Walter takes us through the first part of using an HC11 file manager and shows us how to store multiple programs without having to memorize the addresses. Remembering all the addresses is better left to HC11 than the human mind's memory. Then you can let your mind wander to make your own project a success story. April 2001
	AN S7600A/PIC16F877 JOURNEY
		Part 4: Road Testing by Fred Eady Using his signature music analogies, Fred explores practical extraction or report language, also known as Perl. Just as Janis Joplin grew in popularity, so has been the journey of Perl, with its talent for encoding messages. We've gone from web services to the post office and it's always good to end a series with a little music. Cue the final song. April 2001
	A SIMPLY ADC ON AN LTC1286 CHIP
		by Yuri Magda Yury's been using the LTC1286 and now he wants to pass his knowledge on to Circuit Cellar readers. The analog-to-digital converter circuit designed on the popular low-cost chip has proved its benefits, like allowing the measurement of an input voltage in electronic circuits and consuming a low supply current equal to only 250 �A. Yury's circuit is straightforward, so get ready to easily soak up the design and details. April 2001
	SPECIAL FEATURE • TAKE MY COMPUTER PLEASE
		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. With Steve's new introduction, we kick off a journey back to an age of computing innocence (er, ignorance?). April 2001
	STRUCTURED DESIGN
		Part 2: Putting Theory into Practice by George Martin Revisiting a former project by Jeff Bachiochi, George continues with his use of Nassi Schneiderman flowcharts to develop a structured, manageable design. George originally intended to include case and switch constructs, so he picks up with that this month. So, allow him to put this structured vehicle in reverse and back things up a bit. The end of the road holds the tool to help isolate problems. April 2001
	DESIGNCON FUSION
		by Tom Cantrell Variety is the spice of life. This month, Tom takes us on a tour of DesignCon 2001 and shows us the way the medley of players is responding to the winds of change. As usual, there's great potential for what Tom describes as a high "neato factor," you just have to run with the times, or you run the risk of being left behind. April 2001
	ASK US
		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.
	WHAT'S YOUR ENGINEERING QUOTIENT?
		Test Your EQ presents some basic engineering problems for you to test your engineering quotient. Problem 1—What is the output of the following digital circuit? A" is the negation of A, the flip-flops are D-type, and assume the outputs are 0 initially. Problem 2—What is Miller's theorem in circuit theory? The rest of this month's questions
	RESOURCE LINKS
		Each month Circuit Cellar's Resource Links provide helpful links and information on a variety of featured topics. MP3 Players for Your Car by Rick Prescott Digital Projectors by Brant Schroeder Uninterruptable Power Supply by Brant Schroeder
	NEW PRODUCT NEWS—edited by Rick Prescott
		FPC Connectors Panel-Mounted Sounder/Speaker Gigabit Interface Conector Single-Board multimedia Computer Audio Amplifier Embedded control system Internet Development Kit Single-Board Computers New Product submissions may be sent to Rick Prescott. 4 Park St. Vernon, CT 06066
	PRIORITY INTERRUPT
		Circuit Cellar Online by Steve Ciarcia Read Steve Ciarcia's latest editorial exclusively presented by AVNET. April 2001
	CIRCUIT CELLAR's Print Magazine
		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! April 2001
	COPYRIGHT
		CIRCUIT CELLAR� 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 � 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