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Table of Contents
Task
Manager
USB
Bonanza,
by Jennifer Huber
Priority
Interrupt
Are
You Driven by the Means or the End?,
by Steve Ciarcia
New
Product News,
edited by John Gorsky
USB
Interface Development
Robert
Lang
Need
a USB interface for data acquisition? Simply choose
a chip and software development system, and then
build a circuit board. You can test the board with
an uncomplicated HID mouse application. p.12
Keywords:
USB, data acquisition, FT232BM, AN2131, PIC16C745,
PIC18F2455, RS-232, BOOSTC compiler, descriptor
(If you have pop-ups disabled, click
here for a password.)
'Net
Radio: Build an Internet Radio Receiver
Bertrand
Achard
Atmel AVR 2004 Design Contest Winner
Bertrand’s
ATmega64L-based ’Net Radio enables you to listen
to Internet radio broadcasts without a PC. The ’Net
Radio handles the Internet protocols and MP3 decoding
tasks. p.22
Keywords:
Internet, radio receiver, ATmega64L, AVR-GCC, WinAVR,
memory, XPort, BS1002, MP3, decode, LCD
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here for a password.)
USB
2.0 Interface
Daniel
Cross-Cole
Daniel’s
inexpensive USB interface features an ADC0820 A/D
converter chip and an EZ-USB interface. The system
can sample 100,000 bps and send 512 bytes in 1 ms
to a laptop. p.30
Keywords:
USB 2.0, interface, ADC, ADC0820, EZ-USB, 8051
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here for a password.)
APPLIED
PCs
Build
a Wi-Fi Web Server
Fred
Eady
Fred’s
hooked on the topic of wireless LANs. This month
he shows you how to get a wireless web server up
and running with an SRAM-equipped, ATmega128-based
Wi-Fi module. Now you too can serve web pages from
a wireless 802.11b station. p. 34
Keywords:
Wi-Fi,
web server, ATmega128, 802.11b, TEW-222CF, CompactFlash,
ICCAVR
(If you have pop-ups disabled, click
here for a password.)
Digital
RC Servo Controller (Part 2): Circuitry Details
Eric
Gagnon
In
the first part of this series, Eric introduced you
to the theory behind RC serial servo control. This
month he describes the design of a high-resolution,
32-channel RC servo controller with a serial interface.
p. 43
Keywords:
Servo, RC, serial controller, FPGA, XC2S100E,
Spartan IIE, PWM, ATmega8515L, Mini SSC-II protocol
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here for a password.)
Three-Axis
Stepper Motor Controller (Part 2): Software
Implementation
Viraj
Bhanage, Prajakta Deshpande, & Praveen Deshpande
Now
that you can design a three-axis stepper motor driver,
it’s time to learn how to control it. You can control
the system locally with a keypad and remotely via
an RS-232 serial interface. p. 51
Keywords:
Stepper, controller, RS-232, keypad, AT89C2051,
VisualSTATE, CX51 compiler, LabVIEW, P89C51RD2,
L297, firmware, LCD, interface, state machine
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here for a password.)
—Feature
Article —
Network
GPIB Controller
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Read
it now!
by Ron Battles, Patrick Jackson,
& Scott Shumate
The GPIB protocol enables you to connect various pieces of test
equipment. This team built a low-cost eZ80F91-based
network GPIB controller for controlling equipment
over Ethernet. p.
62
Keywords:
GPIB controller,
Ethernet, eZ80F91, test equipment, Am79C874,
XML-RPC, TCP/IP, SN75160, SN75161
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FROM
THE BENCH
Speech Synthesis with SpeakJet
Jeff Bachiochi
The SpeakJet sound synthesizer is an affordable
alternative to recorded voice synthesis. This month
Jeff shows you how to add voice and sound features
to your embedded project. p. 70
Keywords:
Speech synthesis, SpeakJet, phonemes,
serial, mathematical sound architecture, MSA, Phrase-A-Lator
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here for a password.)
Connect
with USBLab
Stuart
Ball
No parallel printer port? Stuart’s USBLab plugs
into a USB port and provides you with eight bidirectional
data bits, three address bits, a read/write direction
control line, and a data strobe. It also has a serial
input and output. Problem solved. p. 76
Keywords:
USB, interface,
parallel port, I/O, ATmega8515, DLP-USB245,
enumeration, FT245BM, Python
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here for a password.)
SILICON
UPDATE
More FLash, Less Cash
Tom Cantrell
Actel’s flash memory FPGA concept has Tom excited.
Read on to learn about the ProASIC3/E families of
flash memory FPGAs. p. 80
Keywords:
FPGA,
flash memory, ProASIC3/E, Virtex-4, SRAM, power,
A3Pxxx, development tools
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here for a password.)
Test
Your EQ
Index of Advertisers
PREVIEW
June #179
Measurement
& Sensors
Accurate
Capacitance Meter
Precision
Frequency Meter
Electronic Angle Measurement
Short-Range IR Communications System: Progressive
Reflective Transmission Solution
Low-Cost Logic Analyzer for FPGAs
Intelligent
Automatic Garage Door Opener: PIC and Sensors
Sophisticate Automation
ABOVE THE GROUND PLANE
RF Attenuation: Resistors at RF
APPLIED PCs Embedded
USB Made Simple
FROM THE BENCH
Surface-Mount Technology Guide
SILICON UPDATE Best
in Show
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