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.

	DEMYSTIFYING IN-CIRCUIT SERIAL PROGRAMMING
		by Phil Anderson As with many engineers, when it came to in-circuit serial programming, Phil was in a bit of a haze. But, through much researching and experimenting, the fog lifted and the concept became clear to him. In this article, he cuts through the red tape and demystifies ICP. October 2001
	INTRODUCING THE PACKET WHACKER
		Part 1: -Hitching a Ride on the PICDEM.NET by Fred Eady As with every journey Fred takes us on, we can assume that, at times, it's going to be bumpy and there's going to be a lot of smoking going on. The PICDEM.NET was meant to be hotrodded, and he knows just how to get the most out of this beautiful machine, even if means designing a new product to do it. October 2001
	PASSIVE AND ACTIVE FILTERS
		Passing and Rejecting Signals Based on Their Frequency by James Antonakos Who knew that brewing a cup of coffee could be the first step in understanding a basic engineering concept? Well, James takes us through the different blends of filters, whetting our appetite for more. He also challenges us to taste them all-after all, variety is the spice of life. October 2001
	WHAT'S THE LOGIC BEHIND THE DESIGN?
		Working with Programmable Logic by George Martin Last month, George gave us some great new product ideas. And, while watching CSPAN one evening, he got another great idea, which in turn got him thinking about logic devices. Join him, this month, as he takes us through the process of programmable logic. October 2001
	I-WAY THE HARD WAY
		Silicon Update Online by Tom Cantrell Every system designer will eventually have to ask himself this question-should I do it in hardware or software? Tom tackles this question, revealing what he thinks is an inevitable migration toward hardware. However, although there's an exorbitant amount of information available, until all the players reveal their hands, the answer it seems is elusive. October 2001
	WHAT'S YOUR ENGINEERING QUOTIENT?
		Test Your EQ presents some basic engineering problems for you to test your engineering quotient. Problem 1—What is a current mirror? Explain with a circuit that uses NPN transistors. Problem 2—A NOP (no operation) instruction is included in most of processors. Is just idles the CPU hardware for one instruction cycle and does nothing useful. Why is it needed? 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. Servo Control by Rick Prescott Joint Test Action Group (JTAG) by Brant Schroeder
	NEW PRODUCT NEWS—edited by Rick Prescott
		Full-Duplex Transceiver Module Linux Development Kit SMD IR Receivers Embedded Linux Development New Product submissions may be sent to Rick Prescott 4 Park St. Vernon, CT 06066
	PRIORITY INTERRUPT
		No Unpopulated Territory by Steve Ciarcia October 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! October 2001
	COPYRIGHT
		CIRCUIT CELLAR� Online, (ISSN 1527-8131) and Circuit Cellar are published monthly by Circuit Cellar Incorporated, 4 Park Street, Vernon, CT 06066 (860) 875-2751. Entire contents copyright � 2001 by Circuit Cellar Incorporated and ChipCenter, 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