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Boundary scan addresses this problem by providing electrical access to compliant integrated components on a PCB using a JTAG chain, but it is also imperative that any errors in the JTAG chain are corrected early.
JTAG stands for Joint Test Action Group and is pronounced to jay-tag but, which is normally meaning IEEE std 1149.
Because DDR3 memory chips have become so prevalent in high-speed systems, I used this technology as the basis for explaining how JTAG or boundary-scan methods can be integrated into every step of a system's lifecycle, beginning in design and transitioning into manufacturing and field service.
JTAG is a physical method of accessing data on smart phones and mobile devices that can be especially useful for locked devices, or when forensic software does not work.
Supplier of Automatic Test Equipment Teradyne Inc (NYSE:TER) disclosed on Monday that it has signed an agreement with boundary-scan software and hardware products and services technology company JTAG Technologies, to sell and distribute its Symphony/TS boundary scan product.
The system comprises board-specific perpetual licenses for ScanExpress Runner, ADO, and Viewer; a USB JTAG controller; a test procedure development for one UUT; and a 12-month hardware and software support contract.
Take advantage of advancements made in the digital world that allow PCBs to be tested using built-in logic circuits, known as boundary-scan or JTAG, present in ICs such as FPGAs, CPLDs DSPs, and microprocessors.
Symphony/TS/CFM incorporates JTAG Technologies' boundary scan controller and TAP Interface Modules inside Teradyne's test system (using Teradyne's flexible Custom Function Board).
In short, JTAG scan chains are a critical piece of nearly every electronic design.
Numerous additional new device models to the JTAG ProVision library.
Debug is facilitated by the provision of an ICE-JTAG interface for CAP7 JTAG programming, and a USB-Blaster-JTAG interface for Cyclone II JTAG programming, the company said.
The new tool now includes a unique capability that allows designers to link their custom boards via a generic JTAG interface and dramatically reduce overall simulation time.
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