XJTAG goes dynamic in latest release

April 14, 2015

Cambridge, UK. XJTAG, a supplier of boundary scan technology, today announced the release of the latest update to its software suite. The focus of this release is on increasing the flexibility of JTAG chain control to make it easier for engineers to access the full JTAG capabilities of their boards and so achieve maximum test coverage.

Dynamic chain profiling makes it easier to initialize boards with multiple JTAG chains, in which a device in one JTAG chain controls power supplies or reset lines for JTAG devices in the other chains.

During flash programming it is now much easier to set up XJTAG to only clock JTAG data through the chain that is needed for the programming operation, leaving the other chain(s) held in their current state. In some situations this can remove the need to clock hundreds of bits of data per scan, and can significantly speed up testing/programming.

Simon Payne, CEO, commented, “This release of XJTAG continues our program of updates that deliver performance improvements for the world leading companies which use XJTAG throughout their product lifecycle. On a recent project for a client we were able to dynamically change the JTAG setup to only include the single JTAG device that was connected to a flash. This in turn allowed us to make a dramatic saving in a manufacturer’s production time by reducing the programming time of a very complex board from 13 minutes to three minutes.”

In addition to making the system faster and more flexible, XJTAG has increased the capabilities of the XJLink2 JTAG controller by allowing the user to describe connections from the XJLink2 to the PCB under test. “Spare” pins on the XJLink2 that are not being used as TAP pins can now be configured to take part in interconnection testing in order to increase test coverage.

XJTAG has also continued to invest in the XJEase language, which underpins all of its device testing—v3.3 sees the introduction of an all-new compiler that provides a significant boost to performance in some applications and a decrease of CPU load in others.

XJTAG is currently offering a fully- featured trial, including a free board set up.

www.xjtag.com

About the Author

Rick Nelson | Contributing Editor

Rick is currently Contributing Technical Editor. He was Executive Editor for EE in 2011-2018. Previously he served on several publications, including EDN and Vision Systems Design, and has received awards for signed editorials from the American Society of Business Publication Editors. He began as a design engineer at General Electric and Litton Industries and earned a BSEE degree from Penn State.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!