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Table of Contents
Task
Manager
Pinching
Pennies —by
Jennifer Huber
Priority
Interrupt
Intellectual
Property —by
Steve Ciarcia
New
Product News—edited
by John Gorsky
Palm
OS Data Acquisition
by Stephen
Manley
It’s never been so
easy and inexpensive to build data-acquisition and
data-monitoring applications. For instance, Stephen
recently developed a set of digital gauges for his
car, and all it took was a Palm, an ATmega163, and
a little forethought. p.10
Keywords:
Palm, OS, data acquisition,
ATmega163, RS-232, STK500, automotive, logging,
GNU, API, database
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here for password)
Speed
and Location Data Acquisition
by
Terry Fleischman
As co-chair of the High Mileage Vehicle
Challenge, which is a contest amongst designers
to get the most mileage from a gas-powered vehicle,
Terry was looking for ways to enhance the contest.
He and his engineering students volunteered to create
a way to remotely monitor the speed and location
of multiple vehicles. The project turned out to
be educational and fun, but don’t just take their
word for it, try it yourself. p. 20
Keywords:
Data acquistion, remote, speed, location, vehicle,
high mileage, GPS, HC11, 68HC24FN, RF modem, X09-009PKC2N,
polling, PC, LabVIEW
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here for password)
LED-Based
Color Clock
Tell Time Anytime
by
Keith Brown
Keith’s LED-based “color clock” may
not look like a conventional clock, but it works
just as well. Read closely as he explains how he
came to create an entirely new way of displaying
and reading the time of day. p. 28
Keywords:
Clock, color, LED, MC68HC908, interface, synchronization,
temperature, DS1820
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here for password)
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—Feature
Article —
Embedded Networking
with MicroMessaging
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Read
it now!
by Olaf
Pfeiffer
Mixing
technologies can get messy, so if you’re interested
in providing a common network protocol for
applications incorporating different networks,
MicroMessaging is the solution for you. Allow
Olaf to walk you through the MicroMessaging
basics, and you’ll surely find it easier to
develop your next embedded-networking project.
p. 36
Keywords:
Networking, MicroMessaging,
CANopen, bridge, interface API, message format,
network structure, media, tools
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Minimum
Mass Waveform Capture
by
Dick Cappels
In this article, Dick shows you how to capture repetitive
waveforms at 1 Msps using an AT90S2313 microcontroller’s
on-chip PWM and comparator. p. 40
Keywords:
Waveform capture, AT90S2313, PWM, data acquisition,
DAC, comparator, storage, triggering, filtering
(If you have pop-ups disabled click
here for password)
Serial
Sidekick
by
Brian Millier
Brian built the perfect device for troubleshooting
the serial data communications methods he uses.
He calls his bench-side assistant the Serial Sidekick.
The small, stand-alone device can graphically represent
up to four signal lines and has miniterminal capability.
p. 46
Keywords:
Serial communications, troubleshooting, display,
ATmega323, DS1077, interface, PCF8574, I2C,
TTL, RS-232, SPI, IR
(If you have pop-ups disabled click
here for password)
APPLIED
PCs
Simple Data Display
Driving
LCDs with Microchip and Atmel Micros
by
Fred Eady
Thinking about incorporating an LCD in your next
design? It isn’t too difficult, especially if all
you’re looking to do is display your data as a set
of numeric digits. Follow along as Fred shows you
how Microchip and Atmel can help you drive a simple
data display. p. 58
Keywords:
Displays,
LCD glass, PIC16C924, ATmega169, LCD operation,
static, multiplexed, TN, STK502, VIM-404, VIM-808
(If you have pop-ups disabled click
here for password)
FROM
THE BENCH
Designing with RGB LEDs
by
Jeff Bachiochi
With an 8-bit microcontroller driving an inexpensive
RGB LED, you can bring nearly any color of the rainbow
to your next project. Jeff chose a PIC12F675 for
his innovative design. In this article, he explains
everything, including the simple code you’ll need
to get started. p. 66
Keywords:
RGB
LED, PIC12F675, GM5WA-6250A, voltage source, voltage
doubler, jewelry
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here for password)
ABOVE
THE GROUND PLANE
Modulation and Demodulation
by
Ed Nisley
Our understanding of radio technology has come a
long way since Hertz’s nineteenth-century experimentations.
In this column, Ed shows you what a simple AM modulator
does to a carrier and an audio tone. In addition,
he describes how you can demodulate the signal to
recover the audio. p. 70
Keywords:
Modulation,
demodulation, AM, quadrant multiplier, VCR, voltage
controlled resistor, carrier, harmonics, JFET, rectifier,
op-amp
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here for password)
SILICON
UPDATE
In ARM's Way
by Tom Cantrell
You cannot always measure a tech company’s strength
by what you read in the financial pages of a newspaper.
Sometimes you have to dig deeper. Fortunately, you
can turn to Tom when you’re looking for the scoop
on companies working in the world of silicon chips.
In this column, he cuts through the news stories,
press releases, and rumors to set the record straight
regarding ARM’s past, present, and future. p.
76
Keywords:
ARM,
ARM11, ARM7, Thumb, RISC, LPC210x, ML674K, ML675K,
AT91
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here for password)
Test
Your EQ
Index of Advertisers
PREVIEW
November #160
Embedded
Development
Hierarchical
Menus in Embedded Systems
Mixed-Signal AVR Simulator
Programming the 386 in 32-bit Protected Mode
Pure Digital Audio: Build an All-Digital Amplifier
Timing (Analysis) is Everything—A How-To
Guide for Timing Analysis
APPLIED
PCs: RF Made Simple
FROM THE BENCH: OOPic Eases Programming Headaches
SILICON UPDATE: Go Sell the Spartans
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