Product category: ATE Systems
News Release from: Corelis | Subject: ScanExpress JET
Edited by the Electronicstalk Editorial Team on 14 March 2007
Tool combines boundary scan and
functional testing
Test tool combines boundary-scan and functional test technologies to achieve higher test coverage.
Corelis has brought out ScanExpress JET, an innovative test tool which combines boundary-scan and functional test technologies to achieve higher test coverage Dubbed JTAG Emulation Test (JET), the software combines common pin and net-level diagnostics using boundary-scan testing with CPU emulation testing through its JTAG port
This article was originally published on Electronicstalk on 14 Feb 2007 at 8.00am (UK)
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ScanExpress boundary-scan (JTAG) test tools can now be linked directly to Blackhawk XDS560-class JTAG emulators.
This provides functional test capabilities for designs using JTAG compatible CPUs to even non-JTAG peripheral components including analogue parts connected within the CPU address and I/O space.
This means that sound structural tests for opens and shorts can be performed via boundary-scan while at-speed functional testing can be performed using the CPU to run test programs loaded into memory.
Before loading test programs into on-board memory, ScanExpress JET is using a proprietary technique to test the on-board memory at speed without loading any code into this memory.
Further reading
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Universal in-system programming tool supports programming of CPLD, FPGA, serial EPROMs and Flash memory devices.
Development and debug tools in evaluation kits
A supplier of high-performance JTAG development tools for embedded microprocessors, is to include its CodeSymphony software development and JTAG debug environment in new PowerPC 405EZ evaluation kits.
USB controller tests and programs at full speed
Boundary-scan test and in-system programming controller offers board testing and in-system programming of CPLDs, FPGAs and Flash memories at full theoretical programming speed.
This means that ScanExpress JET can test and diagnose faulty boards and systems even when the embedded CPU is not able to boot and the board self test is not operational.
ScanExpress JET carries existing boundary-scan testing to the next level.
Because no single test technology offers 100% test coverage, test engineers are constantly looking at ways to combine the strengths of each test methodology and maximise the overall testability of their products.
ScanExpress JET now offers a feasible way to close the gap between boundary-scan testing and functional testing.
Using a single software and hardware tool to combine the two technologies reduces test integration time yet still provides greater test coverage.
Users can access prebuilt functional tests or create functional test scripts from scratch to test non-standard parts.
Furthermore, because ScanExpress JET integrates easily with existing Corelis hardware, existing ScanExpressTPG, and ScanExpress Runner customers can add on this capability without having to purchase an additional JTAG controller to access the embedded CPU.
Corelis multi-TAP controllers can provide emulation and debug capability on one TAP while connecting the rest of the boundary-scan chain on separate TAPs.
No other test tool currently allows this configuration.
Performing all of the testing from a single JTAG controller not only reduces cost, but also simplifies the hardware required for testing and the connection to the product under test.
"Test technologies have been grouped into separate classes for years", says Karla May, Boundary-Scan Product Marketing Manager at Corelis.
"These technologies are commonly referred to as manufacturing defect analysis (MDA), in-circuit test (ICT), and functional test".
"Our customers are looking for ways to bridge the gaps between these test technologies".
"ScanExpress JET offers a first step toward this goal".
"The addition of ScanExpress JET certainly provides our customers the means to achieve higher test coverage within an already mature high performance boundary-scan tools set".
ScanExpress JET takes advantage of the fact that most of the 32bit and 64bit processors have a built-in JTAG emulation debug port.
ScanExpress JET uses the JTAG debug port to control the CPU and perform functional tests.
ScanExpress JET is available now.
Pricing starts at US $17,000.
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