XJTAG 4.1 Release Notes

New features and enhancements

Please see the Change Log for a list of new features and enhancements in XJTAG 4.1.

Reduced support for original XJLink pin mappings

Previous versions of XJTAG would convert a project’s pin mapping to a format compatible with the original XJLink before saving it, if possible. This is no longer the case. Projects containing pin mappings for the original XJLink can still be opened, provided they do not contain errors, and will be converted for use with a supported XJLink. Such projects will not be modified on disk until you save them.

Change in behaviour in XJAPI_SetPins in XJAPI

Previously, the XJAPI_SetPins function allowed the hard ground pins (10 and 20) on an XJLink2 to be set low. Any attempt to set them high or tri-state was always an error. Driving them low is no longer allowed and an attempt to set these pins to any value now returns an error.

Supported Platforms

XJTAG is supported on both the 32 and 64 bit variants of the following operating systems: Windows 7^® Service Pack 1, Windows 8.1^®, Windows 10^® 1607 (Anniversary Update) and later, and Windows 11^®.

This version does not support Windows XP or Windows Vista, Windows 8 or Windows 10 1507 or 1511 (November Update).

XJTAG recommends a screen resolution of at least 1024×768.

XJTAG requires a processor that supports the SSE2 instruction set. This includes every Intel processor since the Pentium 4 and every AMD processor produced since the end of 2003. See this blog post for more details. This requirement was introduced in version 3.1.

Target Hardware

In order for XJTAG to interact with a circuit, the JTAG chain must be set up properly. To help with this, we have a produced a set of DFT guidelines. There is also a troubleshooting section in the help files.

Side-by-side installations

It is only possible to have one instance of each major release of XJTAG installed. It is possible, for example, to install any variant of version 3.4.x along side any variant of version 3.5.y; however it is not possible to install two variants of version 3.4, e.g. 3.4.3 and 3.4.4.

Changing Project File Associations

By default, double-clicking on an XJTAG project file of any kind will open it in the most recently installed version of XJTAG. The Version Check utility (XJVersion) can be used to control these file associations. It is recommended to do this using the copy installed with the latest version of XJTAG that you have installed.

Previous versions

4.0 | 3.13 | 3.12 | 3.11 | 3.10 | 3.9 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.3 | 3.2 | 3.1 | 3.0

We welcome any suggestions for improving our products. Please contact us with any comments you may have and we will look into incorporating your ideas into a future version.