Free XJTAG DFT Assistant Offering for Mentor Xpedition Customers

May 9, 2018 XJTAG

- New easy to use Design For Test (DFT) tool

- Free to Mentor® Xpedition® software users

- Avoid costly re-spins by catching errors at the design stage

- Find errors in the JTAG chain(s) and repair them before producing any hardware

- Harness the full power of boundary scan to improve testability

Cambridge, UK, May 9, 2018 – Developed by XJTAG®, the free software for the Mentor® Xpedition® Designer product will significantly increase the design for test and debug capabilities of the schematic capture and PCB design environment.

Printed circuit boards (PCBs) are increasingly densely populated and access to pins under many packages, such as Ball Grid Array (BGA), is virtually impossible. JTAG was designed to solve the problem of access and so it is now vitally important to get the JTAG chain right at the design stage. Failure to identify and fix design errors at an early stage can result in a board re-spin and a costly delay to a project. XJTAG DFT Assistant helps validate correct JTAG chain connectivity, through full integration with the Xpedition schematic capture environment.

“The XJTAG DFT Assistant provides engineers using Xpedition with a free, easy-to-use interface to check if JTAG chains are correctly connected and terminated at the schematic capture stage, long before the PCB is produced,” said Dave Wiens, Xpedition product marketing manager at Mentor, a Siemens business. “By detecting and correcting these faults earlier, companies can save both time and money.”

The XJTAG DFT Assistant comprises of two key elements: the XJTAG Chain Checker, and the XJTAG Access Viewer. XJTAG Chain Checker identifies common errors in a JTAG scan chain, such as incorrectly connected Test Access Ports (TAPs). A single connection error would inhibit an entire scan chain from working. XJTAG Chain Checker identifies connection errors and reports them to the developer during the design process. Incorrectly terminated TAPs are also identified.

XJTAG Access Viewer overlays the extent of boundary scan access onto the schematic diagram, allowing users to instantly see which components are accessible using boundary scan, and where test coverage could be further extended. Engineers can highlight the nets individually to show read, write, power/ground and the nets that don’t have any JTAG access on the schematic.

While the first prototype is being manufactured, XJTAG DFT Assistant allows engineers to export a preliminary XJTAG project from the Xpedition schematic capture environment to the XJTAG development software, where additional tests can be developed. These can then be used to test real hardware, as soon as it’s available. This provides a vital new capability to electronic engineers everywhere.

This software is free for Xpedition users of VX.2.1 or higher and can be downloaded from www.xjtag.com/Xpedition.

Mentor, Mentor Graphics, and Xpedition are registered trademarks of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owner.

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About XJTAG (www.xjtag.com)

XJTAG is a world leading supplier of JTAG boundary-scan hardware and software tools. The company focuses on innovative product development and high quality technical support. XJTAG products use IEEE Std.1149.x (JTAG boundary-scan) to enable engineers to debug, test and program electronic circuits quickly and easily. This can significantly shorten the electronic design, development and manufacturing processes. More information about the company, its products and its services is available at www.xjtag.com.

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