Cover - 239-out_Layout 1 5/13/2010 1:06 PM Page 1 Automation with Embedded CANOpen, p. 24 • Single-Key Touch Chips, p. 69 THE MAGAZINE FOR COMPUTER A P P L I C AT I O N S #239 June 2010 WWVB Receiver DSP OAE Probe Amp & Otoacoustic Experiments The USB Enumeration Process Explained Understanding DC/DC Converters Custom Interpreter Development $5.95 U.S. ($6.95 Canada) www.circuitcellar.com C2.qxp 12/4/2009 2:11 PM Page 1 SSH Encrypted SERIAL TO ETHERNET SOLUTIONS Instantly network-enable any serial device Works out of the box no programming is required Device P/N: SB70LC-100CR Kit P/N: NNDK-SB70LC-KIT $47 Qty. 1000 Customize to suit any application with low-cost development kit SB70LC 256-bit encryption protects data from unauthorized monitoring 2-port serial-to-Ethernet server Features: 10/100 Ethernet TCP/UDP/SSH/SSL modes DHCP/Static IP Support Data rates up to 921.6kbps Web-based configuration Device P/N: SB700-EX-100CR Kit P/N: NNDK-SB700EX-KIT SB700EX 2-port serial-to-Ethernet server with RS-232 & RS-485/422 support $129 Qty. 1000 Need a custom solution? NetBurner Serial to Ethernet Development Kits are available to customize any aspect of operation including web pages, data filtering, or custom network applications. All kits include platform hardware, ANSI C/C++ compiler, TCP/IP stack, web server, email protocols, RTOS, flash file system, Eclipse IDE, debugger, cables and power supply. The NetBurner Security Suite option includes SSH v1 & v2 support. Device P/N: CB34-EX-100IR Kit P/N: NNDK-CB34EX-KIT $149 Qty. 1000 CB34EX industrial temperature grade 2-port serial-to-Ethernet server with RS-232 & RS-485/422 support and terminal block connector Information and Sales |
[email protected] Web | www.netburner.com Telephone | 1-800-695-6828 9.qxp 8/7/2008 11:04 AM Page 1 2_Layout 1 5/12/2010 7:18 AM Page 1 2_Layout 1 5/12/2010 7:18 AM Page 2 Task_Masthead_239_masthead.qxd 5/13/2010 12:41 PM Page 4 T ASK MANAGER THE MAGAZINE FOR COMPUTER APPLICATIONS Embedded Is Everywhere June 2010 – Issue 239 E 4 ach month Circuit Cellar delivers need-to-know technical information to embedded design engineers, programmers, academics, and intellectuals interested in computer applications. Its mission is to help readers become well-rounded, multidisciplinary technicians who can confidently bring innovative, cutting-edge engineering ideas to bear on any number of relevant tasks, problems, and technologies—particularly at a time when single-skill “specialists” are rapidly losing relevance. Who are these readers? Only engineers and programmers, right? Wrong. Let me explain why. Most people think there are two main courses of study: liberal studies (e.g., literature, history, music, etc.) and professional studies (e.g., engineering, business, etc). A graduate of the former is, at best, characterized as an urbane scholar; at worst, he or she is considered a “Jack of all trades, master of none” (e.g., the English major). On the other hand, the “professional studies” graduate (e.g., the Engineering major) is, at best, thought of as a focused intellectual with money-making potential. At worst, he or she is ridiculed as a myopic drone with few skills or interests outside his or her technical specialty. Well, Circuit Cellar is challenging the conventional notions of what it means to be educated in 2010. Each month, we reach readers with diverse back