Circuit Cellar Ink 176
March 2005

Table of Contents

4 Jennifer Huber	HTML Task Manager Stay Under Budget
8 John Gorsky	New Product News USB flash programming software for Freescale Coldfire boards from Crossware Products mega329/649/3290/6490 flash memory LCD microcontrollers from Atmel Corp. ADU100 isolated ADC with PGA and relay output from Ontrak Control Systems, Inc.
10 David Tweed	HTML Test Your EQ
12 Stuart Brorson Ales Hvezda Dan McMahill	gEDA Design Suite for Linux Wouldn't it be nice to have professional-quality EDA tools on hand the next time you start designing a circuit board? Look no further than the gEDA design suite for Linux. Read on to learn about the free, open-source tools at your disposal.
18 Ivan Sham William Hue Pete Rizun	Portable FAT Library for MCU Applications The DOS FAT file system is the industry standard format for flash memory cards.You can use a microcontroller to read and write files on an SD/MMC flash memory card with the FAT system. Read on to learn how to build a portable FAT library for MCU applications. Download: Sham176.zip
28 Joe Grand	Embedded Security Design Part 1: Product Enclosure Last August, Joe introduced you to the topic of embedded security. Now he's focused on showing you the proper techniques to get the job done. This month he explains how designing the right enclosure can prevent tampering and reduce the possibility of a passive attack like someone eavesdropping on your product's EMI emissions.
34 Michael R. Smith Moreno Bariffi Warren Flaman Adam Geras Lily Huang Andrew Kwan Alan Martin James Miller	Practical Application for TDD Part 1: Write Software in a Test-Driven Development Environment Test-driven development (TDD) in the embedded environment is an important concept to learn. In this series of articles, a group of imaginative designers puts the idea to the test. The end result is an interesting temperature calculation project.
42 Pete Cross	HTML Zeroing in on ZigBee Part 2: Chipsets and Source Code Last month Pete introduced the ZigBee low-power radio standard and underlying IEEE 802.15.4 layers. In this article, he describes the development resources you'll need to create your own ZigBee projects. He covers both the chipsets and the source code.
52 David Brown	Stealth Keyless Entry System AVR 2004 Design Contest Winner That 10-button keyless entry pad might be more hazardous than helpful. An intruder can discover your code by studying the wear on the buttons. David tells us how he built a better system.
60 Roberto Ferrabone	Control an FPGA with I2C Is the I2C bus a good candidate to control an FPGA? Roberto thinks so. In this article, he makes a case for I2C based on a careful study of its capabilities. He also shows us how to drop an I2C module into an FPGA. Download: Ferrabone176.zip
Applied PCs 66 Fred Eady	Single-IC 10/100 Ethernet Solution Thinking about implementing embedded Ethernet hardware? Try Freescale's MC9S12NE64. With this powerful tool, single-IC Ethernet is a no-brainer. Download: Eady176.zip
From the Bench 72 Jeff Bachiochi	Joystick Technology An analog joystick would be a great addition to some designs, but space limitations could present a problem. Fortunately, new devices like the JS1100AQ five-position joystick navigation switch can help you solve the space problem. Download: Bachiochi176.zip
Silicon Update 78 Tom Cantrell	'51 Favorites The '51 has been around for more than two decades, but today's '51s are vastly superior to their ancestors. This month, Tom looks at where '51 technology has been and where it's going.
94	Advertiser's Index / April Preview
96 Steve Ciarcia	HTML Priority Interrupt Anniversaries

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