Welcome to the XJTAG support blog
This is your go-to space for tips, insights, and updates straight from the XJTAG development and support team. We’re here to help you get the most out of your XJTAG system by sharing our knowledge, experience, and best practices. 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.
Have a topic you’d like us to cover or a question you want answered? Let us know!
For product updates check out the Updates Hub.
Setting TCK frequency
In previous versions of XJTAG the JTAG chains in the circuit were all operated at the same frequency. Because the Optimised Scans feature in v4.0 now allows a different frequency to be set for each chain, some changes to the user interface were required, and as a result the chain frequency settings in the user interface have moved in v4.0. [...]
Optimised Scans
Optimised scans is a new feature added to XJTAG 4.0 and it provides a number of improvements aimed at increasing test speed. With Optimised Scans enabled, every JTAG TAP will scan data through at a separate frequency based on the capabilities of the JTAG devices in that TAP group. […]
XJTAG version 4.0 (major release)
A new version of XJTAG – version 4.0 – has been released, containing major updates and new features. It is now available from our website for users who are in maintenance. […]
Extending XJTAG’s Signal Integrity Error Analysis
Continuing from XJTAG 3.12’s Enhanced Signal Integrity Analysis feature (see here and here), XJTAG 3.13 brings more algorithms to help identify potential issues with the JTAG chain. This article describes more of the symptoms it can spot and their likely causes. […]
Improvements to the Debug Connection Test Screen
XJTAG 3.13 brings with it an updated Debug Connection Test screen in XJDeveloper and XJInvestigator. The screen is primarily used to find problems with the setup which cause the Connection Test to exit with a broken chain error. […]
Variants Part 5 – Export Options
XJDeveloper provides a couple of options for exporting variants in XJPack files or as stand-alone XJDeveloper projects. When exporting a project with variants to an XJPack file, a Variants tab is displayed in the XJPack Dialog. This tab allows you to select any combination of the root project and variants to include in the file. […]