Circuit Cellar Ink 70
May 1996

Table of Contents


Ken Davidson

Task Manager

'Round and 'Round We Go


Reader I/O

Letters to the Editor


Harv Weiner

New Product News


Francis Deck

A Simple DSO Circuit for the Macintosh

Desgining a digital sampling oscilloscope for a Mac can be a nightmare. There's no inexpensive MCU fast enough. So, Francis designed his own interface using some clever money-saving techniques.



William Rogers

Autorouter and Board Layout Software Tool Analysis

Board design can be a monumental task. Working out an automated path gives greater project control and faster turnaround time. Choosing the correct autorouter is what this analysis is all about.


Michael R. Smith

The Evaluation Board Saga Continues

Low-Cost Educational Tools

Strapped by ongoing budget cuts, Mike struggles to get the resources he needs to teach his students without limiting them to convoluted freeware. With SDS's demo program, he hits pay dirt. Read on for details.


Doron Hendel
Rowena Turner

The Embedded Sun

Part 2: Exploiting the Microkernel

Doron and Rowena are quick to showus that using the Chorus OS is simple. It lets developers write applications or use UNIX and other operating systems that work directly on top of the microkernel.


Willard Dickerson

Vehicular Control Multiplexing with CAN and J1850

Part 2: Application to Motorola Embedded Controllers

Willard looks at the Motorola controllers carrying CAN and J1850 protocols. After giving an overview of the chip's features, he presents the CPU, mux, and physical interfaces, and protocol handler with examples.


Ed Nisley

Firmware Furnace

80x86 Performance: Probing the Cache

Building on last month's foundation, Ed loks at the CPU cache in more detail. After overviewing the hardware, he makes a point of pulling out of it all the timing information he can.


Jeff Bachiochi

From the Bench

Handcrafting Design Ideas

It's back to basics. Jeff walks through the fundamentals of solderless breadboards, wire wrapping, and point-to-point wiring. There are tips and techniques to every trade, even at the level of fundamentals.


Tom Cantrell

Silicon Update

Fuzzy PID-Pong: The Final Chapter

In INK 67, Tom told us the latest on Adaptive Logic's AL220, a fuzzy-logic chip. Last month, he put it through its paces with the PID-Pong machine. This month, he reviews its development tools, ruleware, and performance.


Advertiser's Index


Ken Davidson

ConnecTime -- Excerpts from the Circuit Cellar BBS


Steve Ciarcia

Priority Interrupt

An Inventing Experience

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