December, 2012
www.us-tech.com www.xjtag.com Westinghouse Rail Systems
Page 81
testing of advanced prototype hardware designs using the latest component package technologies, and to increase flexibility as well as reducing design-to-completion times for complex projects.
Westinghouse Rail Systems opts for XJTAG testing “
”
Westinghouse Rail Systems is one of the world’s foremost developers of advanced integrated signalling and control systems for main line and mass transit railways. Its products are at the heart of major railway and metro networks globally, with current projects including both major refurbishment programmes, such as the London Underground Victoria Line upgrade, and complex new infrastructure schemes, including the Canada Line Rapid Transit Project in Vancouver.
The company’s 140-year heritage
is founded on delivering advanced signalling solutions to exacting safety and reliability standards, within demanding timescales, and on budget. To ensure the safety of rail passengers, who rely on Westinghouse signalling solutions, its engineers prioritise stringent testing from design and development through to production and implementation. Westinghouse Rail Systems
has recently selected the XJTAG Professional boundary scan development system to verify the integrity of its prototype hardware designs. Engineers at the company’s headquarters at Chippenham, Wiltshire (England), are using XJTAG to debug and test complex control printed circuit boards (PCBs) containing multiple high-pin-count ball grid array (BGA) devices, whose I/Os are inaccessible to traditional test probes. The XJTAG development system
is a cost-effective, ‘out-of-the-box’ solution for debugging, testing and programming electronic assemblies and systems throughout the product lifecycle. XJTAG reduces the time and
Advertorial
cost of board development and prototyping by allowing early test development, early design validation of CAD netlists, fast generation of functional tests and test re-use across circuits using the same devices. XJTAG enables engineers to test a
high proportion of boundary scan and cluster devices including BGA and chip scale packages, such as SDRAMs, Ethernet controllers, video interfaces, Flash memories, FPGAs
opinion
and microprocessors. It also enables In-System Programming of FPGAs, CPLDs and Flash memories. Jeff Smith, hardware engineer,
R&D, Westinghouse Rail Systems, explains, “We selected XJTAG ahead of competitive products for its ease-of-use, graphical user interface, extensive library of functional tests, and low cost of ownership. These advantages create a powerful boundary scan system that enables us to thoroughly check the integrity of our prototype designs.” XJTAG test sequences are compiled from re-usable, device- centric test scripts, which saves time, eliminates errors and enables testing of non-boundary-scan devices as well as boundary-scan- compliant components.
Jeff Smith Hardware Engineer, R&D Westinghouse Rail Systems
any company developing high value, high complexity, BGA- populated boards. The powerful system is easy-to-use, flexible, contains an extensive library of re-usable functional tests, and, importantly, enables hardware verification to take place without the need to develop specific test software to run on the target board. This has brought an end to the classic arguments between hardware and software engineers blaming each other when a new design does not work.
“The XJTAG boundary scan system is a ‘must-have’ tool for ” “XJTAG has a powerful range of
functions that allow us, for example, to control devices from the inside and regain visibility of all the hidden BGA interconnects in the JTAG chain. We can also read or write pins and busses with a single click using XJAnalyser,” adds Jeff Smith. The XJTAG Professional system
also includes the XJIO expansion board, which supports power-rail testing as well as features to save engineers implementing loopbacks or costly custom test jigs. “By using the XJIO expansion board we can verify signals right through to the backplane connectors of the boards,” says Jeff Smith. “This is a very useful feature for our engineers and has helped to us improve the overall test coverage across our control PCBs.”
Data Bank
Company Nature of
business Main
product Locations
Westinghouse Rail Systems (part of Invensys plc)
Supplier of signalling and control
technology for main line and mass transit railways
Products range from colour light
signals to fully integrated control systems, from safety relays and computer based interlockings to complete level crossing solutions
Chippenham, London, Birmingham, York, Glasgow, Crawley, Croydon, Swanley (UK), China, Singapore and Germany
Employees 1,400 Web site
www.westinghouserail.co.uk www.xjtag.com
Westinghouse Rail Systems is using the XJTAG Professional development system to support rigorous
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96