Building a MPC555-Based Oscilloscope
by Daniel Mihalik

With a detailed description of how to use the QADC and the SCI on the MPC555, Daniel shows us how to create our own simple oscilloscope. He even includes the source code needed for the design. In the end, we wind up with a useful debug tool. And, that's just the beginning. With a few software upgrades, the opportunities are limitless.

January 2002

Part 1: Learning the Basics of Excel
by Aubrey Kagan

Although you usually hear of Excel being used for business or home finances, in his series, Aubrey shows us that the engineers can benefit by using the program to make the design process easier. This month, he takes us through the basic techniques of Excel, including naming cells, look-up tables, costing a product, and more.

January 2002

An 8-bit CPU Takes on the Internet
by James Antonakos

James likes doing what the majority of engineers enjoy most-discovering new hardware and software. And this month, he got a real kick out of Zilog's new eZ80 Webserver microprocessor. Along with the many design ideas he came up with, he also got an idea for a contest. Check it out and then enter!

January 2002

Setting Up an Integer Print Routine
by George Martin

As you know, the slightest bump in any routine can cause chaos. George finds himself needing a formatted printing routine, this month, and only perfection will do. The answer to his prayers? A little modification to Turbo C's printf and sprintf.

January 2002

Silicon Update Online
by Tom Cantrell

Hardhearted, cynical, pessimistic. Sounds like a description of the Grinch or Ebeneezer Scrooge, right? More like engineers when it comes to PCs. This month, Tom pours out his frustrations with PCs and the software/hardware upgrades that invariably follow, and sings his praise of one thing about PCs that's yet to let him down—USB.

January 2002

Test Your EQ presents some basic engineering problems for you to test your engineering quotient.

Problem 1—Show that a two-input multiplexer (MUX) is a universal gate; i.e., capable of implementing any combinatorial function.

Problem 2—Design a CMOS circuit to realize the following Boolean expression:

(A.B + C.D)'

The rest of this month's questions

Each month Circuit Cellar's Resource Links provide helpful links and information on a variety of featured topics.

Stream Control Transmission Protocol
by Brant Schroeder

Organic Light Emitting Diodes
by Brant Schroeder

SFP Loopback Tester

Development Kit for Web Devices

Vision Sensor and HMI Interface

Industrial PLC

Low-Cost, Low-Power LCD

PIC 5XX In-Circuit Emulator

RS-232 to SVGA Module

Surface Mount Photo IC Sensors

New Product submissions may be sent to John Gorsky
4 Park St. Vernon, CT 06066

I'll Stay on the Ground, Thank You!
by Steve Ciarcia

Ięd like to think that the public and the airline industry would have come to its senses long before the events of last September but maybe thatęs what it took. Yes, air travel is down, flights have been cut, and airline stocks are in the tank. Itęs easy to correlate it all to security but I think the cause started long before September 11, 2001. Many of us wonder if long-distance travel is worth the hassle. Security delays are but one more item on the list of reasons against it...

January 2002

Take advantage of more than 12 years of engineering editorial experience with Circuit Cellar's print magazine! Full of unique, application-oriented articles.

Come see what's in this month's publication!

January 2002

CIRCUIT CELLARę Online, (ISSN 1527-8131) and Circuit Cellar are published monthly by Circuit Cellar Incorporated, 4 Park Street, Vernon, CT 06066 (860) 875-2751.

Entire contents copyright ę 2001 by Circuit Cellar Incorporated and ChipCenter, Inc. All rights reserved. Circuit Cellar and Circuit Cellar INK are the registered trademarks of Circuit Cellar Inc. Reproduction of this publication in whole or in part without written consent from Circuit Cellar Inc. is prohibited. Disclaimer