Circuit Cellar Ink 164
March 2004

Table of Contents

4 Jennifer Huber	HTML Task Manager Looking for a Security Blanket
8 John Gorsky	New Product News Xport 2 Gameboy embedded development system from Charmed Labs LLC Serial programmer for Microchip PICs from microEngineering Labs, Inc.
11 David Tweed	HTML Test Your EQ
12 Arvind Nath Rapaka Wilfried Elmenreich Donald Wunsch II	TTP/A Protocol and Design TTP/A is a time-triggered field bus protocol that you can use to establish real-time communication between transducer nodes. In this article, Arvind, Wilfried, and Donald show you how TTP/A works and describe its implementation on an Atmel AT90S4433. Download: 164-Rapaka,Elmenreich,_Wunsch.zip
22 Brian Millier	HTML BasicCards 101 Part 1: Program Your First Smartcard As opposed to credit cards, which have magnetic strips that store data, smartcards contain microcontrollers that store data and run programs. In this series of articles, Brian introduces you to smartcard technology and explains how you can program your own card using the BASIC programming language.
28 Richard Wotiz	Backpack Water Level Monitor The Backpack Water Level Monitor measures and monitors the water level in a hiker's hydration pack. It's a great solution for serious adventurers and novices alike. In this article, Richard shows you how to build your own system with a Motorola MC33794 e-field sensor and an MC68HC908QY4 microcontroller. Download: 164-Wotiz.zip
38 Ken Merk	Wireless Vehicle Tracking Part 2: Forth-Based Speech Synthesis Last month, Ken showed you how he designed a GPS-based wireless vehicle tracking sys-tem. Now he's back with information on the code that's required for speech synthesis. He closes with a detailed description of how he took the system for a test drive in his Ford Windstar. Download: 164-Merk.zip
Applied PCs 48 Fred Eady	The UCA93LV Advantage Implement I2C on Your PC Your new PC doesn't include an I2C interface? No problem. Fred has an interesting solution. Follow along as he explains how some basic code and a Calibre UCA93LV can bring the power of an I2C bus to your PC.
58 Michael Melkonian	Software-Only Hardware Simulation Simulating embedded hardware in a Windows environment can significantly reduce development time. In this article, Michael provides techniques for the software-only simulation of embedded hardware. He presents a simple example of an RTOS-less embedded system that uses memory-mapped I/O to access a UART-like peripheral to serially poll a slave device. The simulator is capable of detecting bugs and troublesome design flaws. Download: 164-Melkonian.zip
68 Tom Napier	The Ultimate Firmware NCO? Download: 164-Napier.zip
From the Bench 74 Jeff Bachiochi	Intelligent Current Sensing Harness the Power of the ACS750 Hall Effect Current Sensor Looking for an isolated current sensor? Look no further. The ACS750 family of current sensors is an inexpensive solution for designs that require motor control, load detection, and over-current fault protection. This month, Jeff shows you how to use these powerful devices to your advantage. Download: 164-Bachiochi.zip
Silicon Update 78 Tom Cantrell	Memory Memoir Remembrance of memory past. Confused? Don't be. From the ancient 2102 chips of the '70s to the more recent MRAM chips, Tom surveys the storied history of memory technology.
94	Advertiser's Index / April Preview
96 Steve Ciarcia	HTML Priority Interrupt Old Reliable

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