Circuit Cellar Ink 35
June 1993

Table of Contents


Ken Davidson

Editor's INK

We Don't Talk Anymore


Reader's INK

Letters to the Editor


Harv Weiner

New Product News


Lawrence Foltzer

Long-range Infrared Communications

IR communications are useful for more than just controlling your TV. High data rates and long distances are possible with off-the-shelf devices as long as you know the proper design techniques.


David Wyland

Embedded Control Using ACCESS.bus

Macintosh users have long been used to plugging multiple peripherals together with a single kind of cabling system using Apple's Desktop Bus. Now, ACCESS.bus promises to clean up the cable clutter for PCs, too.



Robert Clemens
Tom Stockebrand

A PC-to-ACCESS.bus Interface Card


Michael Swartzendruber

High-speed Modem Basics: Standards and Theory

What do all those modem "V." numbers mean and what do they do? What about all those file transfer protocols available on BBSs? In this first part, Michael tries to shed some light and introduces his Gemini modem.


Ed Nisley

Firmware Furnace

After This Brief Interruption: IRQs and INTs for the '386SX

Interrupts are tricky at best even for the most experienced embedded programmer. The original designers of the PC didn't make the task any easier. Ed does his best to try to clear the muddied water.

Download: FF35.ZIP


Jeff Bachiochi

From the Bench

Component Selection, Inspection, Rejection

A capacitor is a capacitor, right? Not necessarily. A connection is a connection, right? Think again. Both component selection and PC board layout can be critical in making a circuit perform properly.


Tom Cantrell

Silicon Update

The Ultimate RAM? The Quest for Core Continues

The more things change, the more they stay the same. Just when you thought core memory had been relegated to the museum, along comes a new idea based on an old concept.


John Dybowski

Embedded Techniques

Putting I2C Through Its Paces

Does an interface board with A/D and D/A conversion, EEPROM, real-time clock, and 8 bits of I/O mean lots of processor connections? Not with I2C. Following up on last month's introduction, John builds some I2C hardware.

Download: ET35.ZIP


Russ Reiss

Patent Talk


Advertiser's Index


Ken Davidson

ConnecTime -- Excerpts from the Circuit Cellar BBS


Steve Ciarcia

Steve's Own INK

Eat at Joe's

FTP Directory for INK 35
Follow this link to order a copy of INK 35

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