Electronic Design UPDATE: August 18, 2004

Aug. 18, 2004
Industry View: Using A COTS RTOS In A Defense/Aviation System -- Reality Or Illusion? by John Carbone, Vice President of Marketing, Express Logic. Defense and commercial aviation systems generally include one or more RTOSs...

Electronic Design UPDATE e-Newsletter Electronic Design Magazine PlanetEE ==> www.planetee.com August 18, 2004


*************************ADVERTISEMENT************************** Final Inch (TM) PCB Design Tools from Samtec Simply PCB design for high-speed connectors with Samtec FINAL INCH (TM) reference designs for the trace breakout region around the connectors. These designs save design, development and validation time and resources with downloadable art files, SPICE models and test kits. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BDpg0A7 **************************************************************** Today's Table Of Contents: 1. Industry View * Using A COTS RTOS In A Defense/Aviation System -- Reality Or Illusion? 2. Focus On Test & Measurement * Test Socket Handles 1-GHz Bandwidth 3. News From The Editors * Small Package Houses Powerful Transistor * StarFabric Links Multiple Chassis * Film Capacitors Feature Very Low Inductance 4. Upcoming Industry Events * International Display Research Conference and Fourth International Meeting on Information Display * International Conference on the Commercialization of Micro and Nano Systems * SensorsGOV Expo & Conference * Embedded Systems Conference 5. Magazine Highlights: August 9, 2004 * Cover Feature: Engineering Feature -- Securing The Games * Leapfrog: First Look -- FPGAs Bring Custom-ASIC Economy To System Design * Leapfrog: First Look -- Ethernet Processor Cuts Networking Overhead * Design View / Design Solution -- Taking Logic-Analyzer Probing For Granted Can Spell Trouble Electronic Design UPDATE edited by John Novellino, Executive Editor **************************************************************** YOUR CHANCE TO WIN $500! Take our ISSUE POLL and win a $500 gift certificate. The editors would like to know what you think of the AUGUST 9 ISSUE of Electronic Design. Your feedback will help us better understand your critical information needs and provide valuable guidance for developing future editorial content. It's also your automatic entry into our drawing for a $500 American Express gift certificate. Go to ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKca0Au ***** 2004 BALLOT For Electronic Design's ENGINEERING HALL OF FAME It's time to elect the Class Of 2004 to our Engineering Hall Of Fame. Here's your opportunity to vote for this year's inductees. Our ONLINE BALLOT allows you to vote for as many nominees as you deem worthy and to name your own candidates, too. Go To Zoomerang ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKI30Ai ***** BE SURE TO VISIT Electronic Design's Web site, where the power of Electronic Design is a mouse click away! Read our Web exclusives, enjoy our Quick Poll, discover Featured Vendors, access our archives, share viewpoints in our Forums, explore our e-newsletters, and more. TAKE OUR CURRENT QUICK POLL: Electronic Design is about to publish its special YOUR Issue, which is all about you -- the electronics engineer. Would you recommend becoming an EE as a career to a young person? Go to Electronic Design ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BGmZ0At **************************************************************** ********************** 1. Industry View -- Exclusive to Electronic Design UPDATE ********************** Using A COTS RTOS In A Defense/Aviation System -- Reality Or Illusion? By John Carbone, Vice President of Marketing, Express Logic Defense and commercial aviation systems generally include at least one real-time operating systems (RTOS) to control system resources and manage multiple application threads in a real-time, event-driven environment. Systems such as flight control, avionics, weapons guidance, and full-authority digital engine control (FADEC) engine management all require RTOS software that meets safety and security requirements appropriate to the system's mission. One such requirement is DO-178B, a standard of the Radio Technical Commission for Aeronautics used by the Federal Aviation Administration to certify software for safety-critical commercial aviation applications. DO-178B applies to the entire software system, not just the RTOS. It is not concerned with functionality, so compliance does not demand RTOS characteristics such as memory protection, preemptive scheduling, or even multiple priority levels. The standard is primarily concerned with the process of software development and the validation that the software will perform as intended. Certification rigorously examines development methodology, documentation, testing, verification, and validation of the software. With enough time and effort, though, almost any software can be certified if it can be proven to perform as intended. So while it is incorrect to call an RTOS "DO-178B Certified," vendors might use that term to refer to an RTOS that has been part of a DO-178B certified software system, implying that the RTOS is "certifiable" in future systems. Most commercial RTOSs are monolithic, consisting of a kernel and a collection of services used by applications. Such RTOSs remain consistent from one application to the next, regardless of which services a particular application might use. Other RTOSs are scalable -- configured as a library of individual services and linked with the application only to the extent a particular service is used by the application. To certify a system based on a monolithic RTOS, the entire RTOS must be examined, tested, and verified. But a scalable RTOS requires testing and validation only of the code that ends up in the final system, and that can be significantly less than the entire RTOS. The Illusion To address the economics of DO-178B testing and validation of monolithic commercial systems, some vendors "strip out" portions of the commercial RTOS that would complicate testing and make it more expensive. Vendors thus end up with a certifiable subset of the commercial product. These subsets are necessary for certification because the full product either is not certifiable in its commercial off-the-shelf (COTS) form, or it is too large to be certified economically. Notably, this means that the "certifiable subset" is not the same product as the COTS version. But vendors generally call it by a similar name, creating the illusion that the commercial product shares the certified subset's characteristics for reliability, safety, and security. On the other hand, if the application developer chooses a scalable RTOS, it does not have to be stripped down to a certifiable subset to meet DO-178B requirements. In fact, the RTOS component of the defense/aviation system software might consist of only a handful of RTOS services actually used by the application. If the RTOS is scalable in such a way that only that portion of the RTOS code is included in the system, then that's all that has to be analyzed, documented, and verified with rigorous testing for DO-178B compliance. Before expecting the benefits of DO-178B certification in a commercial RTOS, developers are well advised to clarify whether the exact same RTOS they are considering for commercial use has been certified or whether it's just a distant cousin. If developers are looking for a COTS RTOS that is DO-178B and Evaluation Assurance Level (EAL) certifiable, then it could be that the traditional COTS product is not where they should look. Instead, it's more likely that a simple, small RTOS will make the job easier, less expensive, and faster than a customized version of a larger system. John A. Carbone's 35 years of experience in real-time computer systems and software ranges from embedded system development and field applications engineering to serving as vice president of sales and marketing. He has a BA in mathematics from Boston College. He can be reached at mailto:[email protected]. To comment on this Industry View, go to Reader Comments at the foot of the Web page: Electronic Design UPDATE ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcb0Av **************************************************************** *************************ADVERTISEMENT************************** Advance Your Engineering Career at Dice.com Curious about the engineering job market or actively job searching? Check out Dice.com -- one of the largest vertical engineering job boards (and the #1 technical job board for over 14 years). Dice has more than 10,000 challenging, high-paying jobs from leading companies including Aerotek, IBM, Lockheed Martin, and Motorola. For your next career move, register with Dice: it's free and confidential. Go to http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcc0Aw **************************************************************** ********************** 2. Focus On Test & Measuement ********************** ***Test Socket Handles 1-GHz Bandwidth A BGA/CSP test and burn-in socket in a standard molded socket format accommodates device packages up to 55 mm square in applications up to 1 GHz. The socket is well suited for use with CSP, MicroBGA, DSP, LGA, SRAM, DRAM, and flash devices with a pitch of 0.50 mm or larger. A spring-loaded, cam-actuated pressure pad applies force against the device after the socket lid has been closed and the latched cam is in position. Reversing the cam removes the force prior to unlatching the spring-loaded lid. Mounting to the burn-in board is via solderless pressure-mount compression spring probes located by two molded-plastic alignment pins and secured by four stainless steel screws. During test, the signal path is only 1.92 mm. At pitches above 0.80 mm using a large probe, a 1-dB bandwidth of 1-GHz is possible. The socket's temperature range is -55 to 150 degrees C, and estimated contact life is 500,000 cycles. Pricing for a 500-lead socket starts at $1174.50 each in lots of 10. Delivery is in six weeks. Aries Electronics Inc. ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcd0Ax ********************** 3. News -- From The Editors ********************** ***Small Package Houses Powerful Transistor The ZX5T2E6 20-V pnp transistor features a switched-load power-handling capability of 70 W in an SOT23-6 package. One of the first products to be released from the company's Generation 5 bipolar process, the device has a low saturation voltage: Vce(sat) is 130 mV maximum at a collector current of 3.5 A, yielding a maximum Rsat of 37 mohms. The resulting high efficiency is well suited for battery charging, dc-dc converter, and power management-applications. Its high hfe, a minimum of 300 at 1 A, helps minimize base drive requirements. The transistor costs $0.27 each in lots of 10,000. Delivery for production volumes is four to six weeks. Zetex Inc. ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKce0Ay ***StarFabric Links Multiple Chassis The XP-SB host adapters use PCI-to-StarFabric links. Their two 2.5-Gbit/s full-duplex links can be combined to form a 5-Gbit/s full-duplex link. The adapters are available in a number of form factors, including PCI and PMC cards. The host and expansion unit can be placed up to 5 meters apart. The system supports SPARC Solaris, Solaris x86, Windows 2000, Windows XP, and Linux operating systems. Prices start at $1200. Aurora Technologies ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcf0Az ***Film Capacitors Feature Very Low Inductance The UL31 series of film capacitors employs an exclusive thermoplastic capacitor enclosure that significantly improves thermal conductivity and resistance to harsh environments, meeting MIL-STD-202. Capacitances to 275 microF are available. Inductance is as low as 25 nH for good performance in high-power dc filter applications. (Less than 1 nH is available on special request.) Voltages of 500 to 2200 V dc are offered, and the capacitors can carry up to 110 A with a low equivalent series resistance. Standard tolerance is 10%, and operating temperature ranges from -55 to 105 degrees C. They come in three styles, all with a low profile. Both male and female terminations are available, as is an integrated, predrilled flange to facilitate mounting. Prices range from $19 to $28 depending on quantity. Delivery is in six to eight weeks. Electronic Concepts Inc == http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcg0A1 ********************** 4. Upcoming Industry Events ********************** Aug. 23-27, 24th International Display Research Conference and Fourth International Meeting on Information Display Daegu, Korea http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKBI0Ax Aug. 29-Sep. 2, Ninth International Conference on the Commercialization of Micro and Nano Systems Edmonton, Alberta, Canada http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKI80An Sep. 13-15, SensorsGOV Expo & Conference Virginia Beach, Va. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKch0A2 Sep. 13-16, Embedded Systems Conference Boston, Mass. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ05Tu0AX ********************** 5. Magazine Highlights ********************** In case you missed them, here are some of the high points of our most recent issue. August 9, 2004: * Cover Feature: Engineering Feature -- Securing The Games Surveillance/intelligence technology and 70,000 in security personal combine to gird Greece against potential terrorist attacks at the 2004 Summer Olympics. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKci0A3 * Leapfrog: First Look -- FPGAs Bring Custom-ASIC Economy To System Design Designed for cost-sensistive applications, two FPGA families tackle system designs previously considered approachable only with custom silicon. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcj0A4 * Leapfrog: First Look -- Ethernet Processor Cuts Networking Overhead This multiprocessor chip uses hardware acceleration to handle remote DMA and iSCSI by itself. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKck0A5 * Design View / Design Solution -- Taking Logic-Analyzer Probing For Granted Can Spell Trouble http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcl0A6 For the complete Table of Contents, go to Electronic Design ==> http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKcm0A7 **************************************************************** SUBSCRIBE ONLINE TO ELECTRONIC DESIGN If you're reading this e-newsletter, then you are either a current Electronic Design subscriber, or should be (145,000 of your peers are). To apply for or renew a subscription to Electronic Design absolutely FREE and without paperwork or hassle, click on the link below. http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BEE30AY **************************************************************** *************************ADVERTISEMENT************************** LSI Logic's RapidChip Platform ASIC Seminar Join LSI Logic and Synplicity for an FREE Platform ASIC seminar at a location near you. Learn the rationale for and scope of support behind RapidChip(TM) platform technology, in conjunction with Synplicity's Amplify RapidChip custom physical synthesis solution. RapidChip reduces design time, increases productivity, reduces risk, and lowers design costs, regardless of your application and specialization. Seating is limited for this popular event, so check locations, dates and register now at: http://lists.planetee.com/cgi-bin3/DM/y/eg6W0DJhTw0EmQ0BKBC0Ar ****************************************************************




Editorial: Lucinda Mattera, Associate Chief Editor: mailto:[email protected] Advertising/Sponsorship Opportunities: Bill Baumann, Publisher: mailto:[email protected]

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