Welcome to the XJTAG blog
We believe that sharing our knowledge will help you get the most out of your XJTAG system. This is where our development and support team share their insights and experience. You’ll find posts highlighting particular features of the different software packages that make up the XJTAG development system or aspects of the XJEase language.
Above all this blog is for YOU. We’d love to hear your feedback and suggestions for topics.
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1149.6 testing in XJTAG
1149.6 testing is coming of age, and though XJTAG has supported IEEE Std. 1149.6 since software version 2.1 (released in 2008) it seems to us that 1149.6 devices are becoming much more common in the last couple of years. […]
Windows XP support
Windows XP was released in October 2001 and has been one of Microsoft’s most successful operating systems. […]
Layout Viewer Visualisation
Having lots of information is great, but sometimes the most difficult thing is displaying that data in a meaningful way. We have created two new information overlays for Layout Viewer, allowing you to visualise test coverage statistics or live pin data from Analyser on your board layout. […]
Introducing Dynamic Chains
‘Dynamic Chains’ is a term we’ve coined to describe a test system that has the ability to drive more that 1 JTAG chain configuration. This may be possible if it has multiple chains driven by different TMS or TCK pins, or a single chain that has multiple JTAG device variations (for example using a Scan Bridge). Before v3.3, XJTAG projects could only represent a single [...]
Wiring a bed of nails test jig for JTAG
When using JTAG with a Device Under Test (DUT) connected to a bed-of-nails test fixture, often little attention is paid to the way the JTAG signals are wired. This article (published in SMT magazine last year) gives a helpful explanation of why it is important to get this right, and gives tips for best practice.