cover1.qxp 9/5/2007 11:55 AM Page 1 #207 October 2007 w w w . c i r c u i t c e CIRCUIT® l l a r . c o m CELLARTHE MAGAZINE FOR COMPUTER APPLICATIONS SIGNAL PROCESSING Signal Recovery & Restoration Speech Synthesis FIR Filter Basics New Sensor Technology WWW.GiURUMELE.Hi2.RO 10> 7925274 75349 $4.95 U.S. ($5.95 Canada) C2.qxp 5/31/2007 9:02 AM Page 1 Announcing a complete hardware and software solution from NetBurner The NetBurner MOD5234 ETHERNET CORE MODULE with eTPU Only$99 Qty. 100 NetBurner MOD5234 Ethernet Core Module Features INDUSTRIAL TEMPERATURE RANGE | –40°C to +85°C PERFORMANCE AND MEMORY | 32-Bit CPU | Freescale ColdFire MCF5234 147 Mhz | 2MB Flash Memory | 8MB SDRAM DEVICE CONNECTIVITY 2 | 10/100 Ethernet | 3 UARTs | 16-channel eTPU | I C | SPI | CAN 2.95” | 47 Digital I/O | 16-bit Data Bus | SD/MMC Flash Card Support Customize with NetBurner’s Royalty-free Software Suite DEVELOPMENT SOFTWARE | NB Eclipse IDE | Graphical Debugger | Deployment Tools | Examples COMMUNICATION SOFTWARE | TCP/IP Stack | HTTP Web Server | FTP | E-Mail | PPP | Flash File System 2.0” All hardware and software is included with the NetBurner MOD5234 Development Kit for only $299! The Development Kit features NetBurner’s Eclipse, an enterprise level professional IDE that provides editing, downloading and debugging in one environment. WWW.GiURUMELE.Hi2.ROOrder the MOD5234 Development Kit: Product No. NNDK-MOD5234-KIT Product No. | MOD5234-100IR Information and Sales | [email protected] Web | www.netburner.com Telephone | 1-800-695-6828 1.qxp 1/30/2007 4:30 PM Page 1 CapSense. Beauty is more than skin deep. PSoC®-based Capacitive Touch Sensing GET STARTED WITH CAPSENSE NOW Maximize the design flexibility and integration of Cypress’s Order a discounted CapSense Development Kit: PSoC solution to create a stylish, durable interface. CapSense www.cypress.com/capkit replaces buttons, switches, sliders and other mechanical Request free PSoC CapSense IC samples: inputs in your product. CapSense enables: www.cypress.com/capchips Download free PSoC Express™ visual embedded software: Fast changes to your design at any stage from concept www.cypress.com/capexpress through production. CapSense is not a fixed-function ASIC Register for a CapSense NetSeminar: or module; you are in control of your design at all times. www.cypress.com/capseminar Single-chip implementation supporting multiple interfaces – buttons, sliders, touch screens, touchpads and proximity M detectors – on a variety of conductive substrates. Unique integration of additional functions – LED control, battery monitoring, motor control, ambient light sensing, etc. – all with the same CapSense chip. Quick time-to-market with powerful, visual embedded design toolsWWW.GiURUMELE.Hi2.RO allowing customized, system-level design. Applications enabled by PSoC® CapSense. Streamline your next design with CapSense: www.cypress.com/gocapsense Cypress, the Cypress logo and PSoC are registered trademarks of Cypress Semiconductor Corporation. All other trademarks are properties of their respective owners. ©2007 Cypress Semiconductor Corporation. All rights reserved. 2.qxp 5/31/2007 9:59 AM Page 1 Link Instruments PC-Based Test Equipment Digital Oscilloscopes • 2 Channel Digital Oscilloscope • 500 MSa/s max single shot rate • 1Mpt sample memory 250 MSa/S (Dual channel) 512 Kpts 500 MSa/S (Single channel) 1 Mpts • Only 9 oz and 7” x 3.5” x 1.5” • Portable and Battery powered • USB 2.0 • FFT Spectrum Analyzer DSO-8202 (200MSa,128K) $799 DSO-8502 (500MSa,1MPt) $950 500MSa/s 1Mpts Logic Analyzer & Port 3.2” x 3” xable 0.65” NEW! Pattern Generator USB 2.0 Powered • Logic Analyzer (32 channels) • Pattern Generator (up to 32 channels) • up to 400 MSa/s • Variable Threshold • 2 External Clocks • SPI output and disassembly • I2C output and disassembly WWW.GiURUMELE.Hi2.RO•up to 2Msamples/ch IO-3208A $750 IO-3232A $899 IO-3232B $1399 Link Instruments (973) 808-8990 www.Linkins4.com 3.qxp 8/27/2007 4:42 PM Page 1 WWW.GiURUMELE.Hi2.RO 207_Task_Masthead.qxp 9/4/2007 10:10 AM Page 4 TASK MANAGER Mark Your Calendars FOUNDER/EDITORIAL DIRECTOR CHIEF FINANCIAL OFFICER Steve Ciarcia Jeannette Ciarcia ime sure flies when you’re marking your life according to an editorial cal- MANAGING EDITOR MEDIA CONSULTANT T C. J. Abate Dan Rodrigues endar. I can’t believe it’s already October. Since we’re only two months away from the New Year, I’d like to touch on a few important topics to ensure that WEST COAST EDITOR CUSTOMER SERVICE Tom Cantrell Debbie Lavoie we are all moving in the same direction as we approach 2008. CONTRIBUTING EDITORS CONTROLLER *** Jeff Bachiochi Jeff Yanco Ingo Cyliax 2007 READER SURVEY Robert Lacoste ART DIRECTOR KC Prescott I’d like to thank everyone who took the time to fill out Circuit Cellar’s 2007 George Martin Ed Nisley reader survey. We value reader feedback because this magazine has been GRAPHIC DESIGNER Mary (Turek) Sobuta reader-driven since Day 1. As you know, we use the information that we get NEW PRODUCTS EDITOR John Gorsky from our surveys when making decisions about the magazine’s editorial STAFF ENGINEER John Gorsky content, issue themes, advertising, and more. This year was no different. PROJECT EDITORS Steve Bedford Congratulations to John Hopprich of San Francisco, California. John Ken Davidson took the time to fill out the survey and was awarded an NEMA 4x/IP65 David Tweed enclosed operator interface 4" diagonal TFT from Reach Technology. As ASSOCIATE EDITOR John knows, it pays in more ways than one to keep active in the Circuit Jesse Smolin Cellar community. Thanks, John! *** ADVERTISING 860.875.2199 • Fax: 860.871.0411 • www.circuitcellar.com/advertise PROGRAMMABLE LOGIC PUBLISHER Based on information that we gathered from the survey, we made an Sean Donnelly important change to our 2008 editorial calendar. (To view the calendar, go Direct: 860.872.3064, Cell: 860.930.4326, E-mail: [email protected] to www.circuitcellar.com/submissions/editorialcalendar.html.) We found that ADVERTISING REPRESENTATIVE many of you have a serious interest in projects that use FPGAs, PLDs, and Shannon Barraclough Direct: 860.872.3064, E-mail: [email protected] other programmable logic chips. So, in December 2008, we will launch a ADVERTISING COORDINATOR new issue: Programmable Logic. Valerie Luster If you would like to propose an article for the new issue, consider writing E-mail: [email protected] about any of the following topics: design tips and tricks, innovative solutions to traditional design challenges (e.g., initialization, dynamic reconfiguration, Cover photography by Chris Rakoczy—Rakoczy Photography and security), or the spectrum of hardware and software tools that come www.rakoczyphoto.com into play when working on programmable logic applications. As usual, you PRINTED IN THE UNITED STATES should e-mail your article proposals to [email protected]. CONTACTS SUBSCRIPTIONS *** Information: www.circuitcellar.com/subscribe, E-mail: [email protected] Subscribe: 800.269.6301, www.circuitcellar.com/subscribe, Circuit Cellar Subscriptions, P.O. Box 5650, MICROCHIP CONTEST DEADLINE Hanover, NH 03755-5650 Address Changes/Problems: E-mail: [email protected] The submission deadline for the Microchip 16-Bit Embedded Control GENERAL INFORMATION Design Contest is 1:00 PM EST on October 16. It’s a good idea to submit 860.875.2199, Fax: 860.871.0411, E-mail: [email protected] Editorial Office: Editor, Circuit Cellar, 4 Park St., Vernon, CT 06066, E-mail: [email protected] your entry a few business days prior to the deadline. This will give us a New Products: New Products, Circuit Cellar, 4 Park St., Vernon, CT 06066, E-mail: [email protected] chance to check for missing material and corrupt files. AUTHORIZED REPRINTS INFORMATION 860.875.2199, E-mail: [email protected] E-mail your entries to [email protected]. Be sure to include the AUTHORS following: Authors’ e-mail addresses (when available) are included at the end of each article. - Abstract WWW.GiURUMELE.Hi2.ROCIRCUIT CELLAR®, THE MAGAZINE FOR COMPUTER APPLICATIONS (ISSN 1528-0608) is published monthly by Circuit Cellar - Complete documentation Incorporated, 4 Park Street, Vernon, CT 06066. Periodical rates paid at Vernon, CT and additional mailing offices. One-year (12 issues) subscription rate USA and possessions $23.95, Canada/Mexico $34.95, all other countries $49.95. Two-year - Code (24 issues) subscription rate USA and possessions $43.95, Canada/Mexico $59.95, all other countries $85. All subscription orders payable in U.S. funds only via Visa, MasterCard, international postal money order, or check drawn on U.S. bank. Direct sub- scription orders and subscription-related questions to Circuit Cellar Subscriptions, P.O. Box 5650, Hanover, NH 03755-5650 When you submit your entry, make sure that you label all of your project or call 800.269.6301. materials with your assigned registration number. Good luck! Postmaster: Send address changes to Circuit Cellar, Circulation Dept., P.O. Box 5650, Hanover, NH 03755-5650. *** Circuit Cellar® makes no warranties and assumes no responsibility or liability of any kind for errors in these programs or schematics or for the consequences of any such errors. Furthermore, because of possible variation in the quality and condition of materials and workmanship of read- er-assembled projects, Circuit Cellar® disclaims any responsibility for the safe and proper function of reader-assembled projects based upon or As usual, send me an e-mail if you have any questions about article sub- from plans, descriptions, or information published by Circuit Cellar®. The information provided by Circuit Cellar® is for educational purposes. Circuit Cellar® makes no claims or warrants that readers have a right to missions, contests, or the magazine. I look forward to hearing from you. build things based upon these ideas under patent or other relevant intellectual property law in their jurisdiction, or that readers have a right to construct or operate any of the devices described herein under the relevant patent or other intellectual property law of the reader’s jurisdiction.