Circuit Cellar Ink 182
September 2005

Table of Contents

4 Jennifer Huber	HTML Task Manager Tips for Signal Generation and Decoding
8 John Gorsky	New Product News STM100 solar-powered wireless sensor module from EnOcean GmbH AS5045 12-bit magnetic rotary encoder from austriamicrosystems AG HSB-835P half-size Pentium 4 PCI CPU card from AAEON Electronics, Inc. LTC2480 series of 16/24-bit delta-sigma A/D converters from Linear Technology Corp. FX12 Spartan-3 and Virtex-4 FPGA Mini-Modules from Memec
12 Neal Martini	Signal Generation Solution Build an Inexpensive RF Signal Generator Tired of going to a local university lab to use a signal generator, Neal designed his own. In this article he explains how he built the PIC16F877A-based controller and RF module. Download: Martini182.zip
22 Eric Kiser	Digital Decoding Simplified Sequential Exact-Frequency Goertzel Algorithm Using dedicated tone decoder hardware or digital signal processors to decode signals can cost a lot of money and take up precious space. Eric's algorithm is a great alternative. Download: Kiser182.zip
32 Gordon Dick	High-Performance Square Wave Source Build a Digitally Controlled Signal Generator Wouldn't it be nice to have more than one square wave source on your workbench? Gordon built a digitally controlled signal generator around a PIC16F876 microcontroller and Linear Technology's LTC6903/6904 oscillator. It's a fairly simple, inexpensive project. Download: Dick182.zip
38 Romeo Costanzo	Strong Encryption for PICs Part 2: Prototype Application Now that you know how to use the Triple-DES encryption algorithm with PIC MCUs, it's time to learn how to use it to create a one-time password generator for an electric lock. Download: Costanzo182.zip
48 Michael Griebling	Hardware Synthesis with VHDL Part 2: VHDL in Action Ready to put VHDL in play? Michael shows you how to build state machines, decoders, mul-tiplexers, debounce and edge detection circuits, tristate bus buffers, shift registers, and more. Download: Griebling182.zip
58 Bob Armstrong	Replacing a Legend Build a Functional Equivalent to the CDP1861 Bob built a functional equivalent to a CDP1861 video controller chip so he could play video games on his COSMAC Elf replica. The design includes two ATF22V10 GALs and a few stan-dard 74HC chips. Ready to replace some random logic? Download: Armstrong182.zip
66 Daniel Malik	Inexpensive In-Circuit Debugging Daniel's open-source background debug module (BDM) debugging interface is a great tool for the cost-conscious designer. It's perfect for in-circuit debugging MC68HC(S)12/S12X- and MC68HCS08-based applications. Download: Malik182.zip
Applied PCs 70 Fred Eady	Throwing Ethernet Frames You've come to the right place if you're looking for Ethernet technology that will enable you to remotely communicate with your embedded designs. This month Fred introduces you to the AirDrop-P/Frame Thrower module.
From the Bench 76 Jeff Bachiochi	Capacitive Sensing Technology Many exciting products like MP3 players include circular cursor controllers. In this column Jeff revisits the topic of capacitive sensing technology, which he last covered in 1999. He focuses on Quantum's new line of capacitive sensor ICs.
Silicon Update 80 Tom Cantrell	Batteries Not Included The cholesteric LCD (ChLCD) is a new breed of LCD technology. One of its greatest attributes is that it eats up a lot less power than a traditional LCD. Read on to determine if it's the right choice for your next application.
93	Crossword Puzzle
94	Advertiser's Index / October Preview
96 Steve Ciarcia	HTML Priority Interrupt Pond Scum

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