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随着微电子技术进入超大规模集成电路时代,电路的高度复杂性及多层印制板、表面贴装(SMT)、圆片规模集成(WSI)和多芯片模块(MCM)技术在电路系统中的运用,使得电路节点的物理可访问性正逐步削减以至于消失,电路和系统的可测试性急剧下降,测试费用在电路和系统总费用中所占的比例在不断上升。针对电路的器件布局日益复杂、元器件复杂的封装、密集的管脚;线路板小型化、线越来越细等这些问题就会给电路的线路检测、线路板故障的检查以及排除和FLASH、CPLD ISP(在线编程)带来很大的麻烦,用传统的ICT(线路检测设备)已经很难,甚至不可能解决这些问题,因此人们开始寻求更方便、更快捷的方式来替代传统的检测手段。现在一种叫边界扫描的技术越来越多引起人们的注意,应用比较广泛的是JTAG接口协议,基于JTAG协议而开发的边界扫描产品也越来越多:

边界扫描测试是在 20 世纪 80 年代中期作为解决 PCB 物理访问问题的 JTAG 接口发展起来的,基于JTAG协议而开发的边界扫描产品也越来越多。

JTAG测试的广泛应用和科技的发展,适用于JTAG测试的工业标准也在逐步推进,从最初的用于互连测试的IEEE 1149.1工业标准,到1999年推出的适合数模混合测试的IEEE Std 1149.4-1999,再到2000年推出的可以对Flash,CPLD,FPGA进行ISP(In System Programming系统内编程)的IEEE 1532-2000。JTAG测试的功能逐渐强大和完善,从而在更多的领域得到越来越广泛地应用,并已成为国际上通用的电路板测试方法。 ----------详情见(软件相关资料下载

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北京埃森恒信电子技术有限公司与美国ASSET公司于2007年1月1日合作

新闻动态

ASSET aligns company, technology and products with embedded instrumentation

Building on its JTAG leadership, ASSET applies boundary scan expertise to the industry's move toward embedded instrumentation

Richardson, TX (May 13, 2008) - Responding to the increasing momentum in the electronics industry toward embedded instrumentation, ASSET? InterTech, Inc. (http://www.asset-intertech.com/) announced it is positioning the company, its products and its technologies to provide open tools for embedded instrumentation in design validation, test and debug applications.

Many of the established validation and test technologies are inadequate or ineffective for high-speed chips, I/O buses and systems. Moreover, new chip geometries at 45 nanometers (nm) or smaller, as well as chip-level packaging technologies like system-in-package (SiP) are making validation, test and debug very difficult, if not impossible with traditional technologies. Building on its long-established leadership in non-intrusive boundary-scan structural test based on the IEEE 1149.1 JTAG standard, ASSET has significantly enhanced its ScanWorks? platform over the last several years with embedded instrumentation capabilities. According to Glenn Woppman, president and CEO of ASSET, the company will continue to lead in JTAG structural test while developing innovative and open embedded instrumentation solutions.

"This is a natural transition for ASSET because we've actually been involved with embedded test and diagnostic technologies ever since we helped develop the boundary-scan standard and the marketplace back in the mid-1990s," Woppman said. "Now, because of advancements in chips and circuit boards, embedded instrumentation is emerging as the most viable and efficient way to perform design validation, test and debug. In general, the trajectory of the industry has been moving toward non-intrusive methodologies for more than 15years, ever since boundary scan technology came on the scene. Embedding instrumentation is the next logical step and over the last several years we have been migrating ScanWorks into a role as an open platform for embedded instrumentation, including boundary scan, CPU-emulation functional test, Intel? IBIST and others."

ASSET has been developing and bringing to market tools to automate, access and analyze embedded instrumentation for several years.

Next-generation instruments

Embedded instrumentation is a natural extension of trends that have been taking place in the test and measurement marketplace for two decades.

Since its very beginning, the electronics industry has used standalone, external instruments like oscilloscopes and logic analyzers to validate and test chips, circuit boards and systems. Invariably, these devices relied upon physical probes to determine what was happening electrically on chips and boards. During the 1980s, virtual instrumentation was introduced. This concept featured internal software drivers with virtual front panels that controlled external instruments for test and measurement purposes, leveraging the PC as the computing platform. Unfortunately, physically probing, which instruments depend upon for access, has become difficult or ineffective in many instances.

Now, chip manufacturers are responding with embedded instrumentation to meet their own needs. These same embedded instruments can be re-used by system designers, validation engineers and test engineers, who require a more effective and agile way to validate designs, and test and debug circuit boards and systems. In a non-intrusive way through an open external platform, ASSET's ScanWorks automates, accesses and analyzes the instruments that have been embedded into chips.

Coincident with its product and technology re-positioning, ASSET also unveiled a new corporate logo.

The new ASSET logo represents the company's efforts to drive embedded instrumentation on circuit boards, into advanced packages like SiPs and in chips. By doing so, ASSET "brings many diverse pieces together" for its customers.

ScanWorks? - The Embedded Instrumentation Platform

ASSET, through its ScanWorks platform, is applying its more than two decades of experience as a leading tools supplier for the boundary-scan (IEEE 1149.1 JTAG) market to developing open embedded instrumentation tools. Boundary scan, as a test technology that is embedded into chips and circuit boards, is one of several technologies that can form the basis for an embedded instrumentation toolset.

About ASSET InterTech

ASSET provides open embedded instrumentation tools to the electronics industry for design validation, test and debug. ScanWorks, the embedded instrumentation platform, automates, accesses and analyzes embedded instrumentation, allowing users to quickly and easily validate and test semiconductors, circuit boards or entire systems during every phase of a product's life. ASSET's MicroMaster product line employs CPU emulation technology to perform extensive functional test and diagnostic routines on circuit boards and chips, and to program logic and memory devices in-system at high CPU speeds. ASSET InterTech is located outside of Dallas, TX, at 2201 North Central Expressway, Suite 105, Richardson, TX 75080.

For product information, call toll free 888-694-6250, send faxes to 972-437-2826, direct e-mail to ai-info@asset-intertech.com or visit the company's Web site at http://www.asset-intertech.com/.

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TRADEMARKS:
ASSET, the ASSET logo and ScanWorks are registered trademarks of ASSET InterTech, Inc. All other trade and service marks are the properties of their respective owners.

 
 
 
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