Circuit Cellar Ink 44
March 1994

Table of Contents

2


Ken Davidson

Editor's INK

Double, Double, Toil, & Trouble

6

Reader's INK

Letters to the Editor

8


Harv Weiner

New Product News

14


Noel Anderson
Dean Hoyt
Ron Shaw

Tools for Debugging Real-time Embedded Computer Systems

When all you have is a hammer, everything looks like a nail. It's important to use the right tool for the job at hand, and code debugging is no exception. Explore the tools available to the embedded designer.

22


Bruce L. Olney

Inexpensive 68HC11 Cross-development

Think you need all kinds of fancy cross-development tools, debuggers, and elaborate boards to create 68HC11 code? There are cheaper alternatives, and Bruce is only too happy to share one with you.

Download: HC11DEV.ZIP

30


Michael R. Smith

Computer "Train"ing

Using commercial evaluation boards in teaching

Manufacturer evaluation boards aren't restricted to the domain of the working engineer. They also make inexpensive trainers for up-and-coming engineers. Check out one board and how it is being used.

40


Michael Alwais

Improving the Performance of an 8051-based System

For most, seeing their kids grow up and finally move out of the house is a hard thing to do. For some, the same holds true for their first microcontroller. One thing is certain, they will always be there for you.

Download: DS80C320.ZIP

48


Ed Nisley

Firmware Furnace

Testing the '386SX Project's Bitmapped LCD Panel

Now that the hardware for the large-panel LCD interface is ready, it's time to twiddle some bits. Be sure to take things one step at a time, though, because one misconnection can put you back at square one.

56


Jeff Bachiochi

From the Bench

Designers Spell Relief "IPC"

If you've ever been involved in an electronics project from beginning to end, you know factors such as PCB layout, packaging, and wiring are important obstacles that have to be tackled. Jeff cluse us in on an organization specializing in this.

60


Tom Cantrell

Silicon Update

Update Your Design On the Fly

We've all come to appreciate the convenience of updating firmware or logic arrays by erasing and reprogramming the EPROM or PAL. A new batch of chips is now showing up that can be updated while still in the circuit.

66


John Dybowski

Embedded Techniques

Getting to the Embedded Core: The DS2250, Backplane, and Power Control

Now that the introductory pleasantries are out of the way, it's time to get down to some hardware. John starts the presentation of his embedded control system with the processor module and other core elements.

Download: ET44.ZIP

75


Russ Reiss

Patent Talk

81

Advertiser's Index

82


Ken Davidson

ConnecTime -- Excerpts from the Circuit Cellar BBS

96


Steve Ciarcia

Steve's Own INK

Superhighway Limits

FTP Directory for INK 44
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