Circuit Cellar Ink 41
December 1993

Table of Contents

2 Ken Davidson	Editor's INK Our First Month of Email
6	Reader's INK Letters to the Editor
8 Harv Weiner	New Product News
14 Maurizio Ferrari	Secrets of Using the DS1209 in an RF Transponder The DS1209 is a general-purpose wireless-to-3-wire interface that can be used in many applications. Explore its use in an RF transponder, and find out some tricks the data sheets don't tell you about the part.
22 Scot Colburn	The Covert Chordic Keyboard How long would it take you to type this? And how many fingers do you use to type? One finger or not, you don't have to be a musician to appreciate the benefits of a keyboard that fits in your palm. Download: CHORDIC.ZIP
30 J. Conrad Hubert	Accessing the DS5000T Timekeeper from C Is time of the essence in your current project? Accessing the embedded clock/calendar in Dallas's DS5000T proves to be a challenging prospect, but well worth the effort. Download: DS5000T.ZIP
40 Del Hatch	Designing with FPGAs Part 2: An Example Here's where the design rubber meets the FPGA road. First, a look at design structure and its compilation. On your mark, get set ... now we're in the driver's seat and ready to stuff a real project into an FPGA ... GO! Download: FPGA.ZIP
48 Rob Rojas	Results of The 5th Annual Circuit Cellar Design Contest
52 Ed Nisley	Firmware Furnace Beyond Small: Mainline C for the '386SX Project If you've been waiting patiently to use your copy of Borland or Microsoft C with your embedded '386SX, your wait is over. Ed finally takes the plunge and brings on the big guns. Download: FF41.ZIP
60 Jeff Bachiochi	From the Bench Measuring Up an Electronic Caliper Interface If you were anything like Jeff was as a child, you probably have your own stories of taking apart everything in sight. Jeff's a few years older now, but that hasn't stopped him. Tag along on his latest excursion. Download: FTB41.ZIP
64 Tom Cantrell	Silicon Update It's Showtime Tom gives us a tour of Silicon Valley's hottest conferences and techie shows. Topics ranging from liquid cooling to PC designs to the broad acceptance of PCMCIA are the talk of the town.
72 John Dybowski	Embedded Techniques Conversing with Batteries Revising a topic only touched upon in a recent column, John pulls out the Benchmarq catalog again and checks out the bq2010 Gas Gauge chip. Off-loading the task onto a dedicated chip makes a lot of sense.
77 Russ Reiss	Patent Talk
81	Advertiser's Index
84 Ken Davidson	ConnecTime -- Excerpts from the Circuit Cellar BBS
96 Steve Ciarcia	Steve's Own INK Embedded in Everything

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