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XJTAG Introduces Arm® SWD Support and User-Defined Libraries

Jun 16, 2021

Cambridge, England, June 16, 2021 — XJTAG®, a leader in JTAG boundary scan test solutions, announces the introduction of Serial Wire Debug (SWD) support, user-defined libraries, a new clock generator, and other benefits in its latest software release, XJTAG 3.11.

Serial Wire Debug

Engineers using a device with an ARM® Cortex® core can now benefit from XJTAG’s support for the SWD protocol via any two pins of the XJLink2. As well as being used to program a device’s internal memory, this interface also allows an SWD-device to be controlled directly during a board test-for example, to provide a way to test a peripheral such as an ADC; and to program connected memories.

Although XJTAG always recommends bringing out a processor’s JTAG signals for good test coverage, if this cannot be done for some reason, this release provides a way to test the device’s connections by using SWD to control its GPIO pins.

Devices that multiplex SWD on their JTAG pins are supported by an additional function that automates switching between the two modes. With an increasing number of ICs available with an SWD interface, XJTAG believes engineers will find this support a valuable addition.

User-Defined XJEase Libraries

The new XJTAG release also introduces an application that allows engineers to create and manage their own library of XJEase device files and circuit code files. This library can also be distributed and maintained across an organisation to help drive consistency between teams, reduce the risk of duplicated effort, and minimise the time taken to maintain projects. When categorising devices or adding circuit code files to a project, this new library can be added to XJDeveloper’s list of libraries to be used.

Configurable Oscillator

Engineers looking for a way to prevent a watchdog timer from resetting the board during testing, or who need a simple clock input, will benefit from XJLink2’s new oscillator output. It comes with XJTAG 3.11 and can bring convenience and cost savings, in many instances removing the need for a separate signal generator. This flexible and easy-to-use oscillator is adjustable in 10 kHz steps from 10 kHz to 166 MHz and has a high-impedance output state when switched off. It is easy to control during a test using XJEase and runs without continuous software interaction, making it ideal when testing a board that requires a constant input. It is available on all XJLink2-based hardware, including USB, PXI and Quad versions.

Excel Support, Log File Viewer and Other Improvements

To make creating projects easier, XJTAG has responded to several engineering requests by adding support for importing BOM files in Excel format (.xls and .xlsx), including multi-tab files.

It is also now easier to deal with multiple log files. Engineers no longer need to open every file to find the ones they want because the Log File Viewer in XJTAG 3.11 enables users to filter and search a collection of log files based on their content. This allows users to filter log files to identify those where a specific test failed, or those generated at a particular time or from a specific XJPack or project version. This speeds up the process of identifying trends and debugging problems. Other additions to the Log File Viewer include the ability to preview a list of tests and results before opening the file, easier navigation through the file because the relevant section is highlighted when a test is selected in the navigation pane, and the addition of a “most recently used” list of folders.

When debugging problems with dynamic JTAG chains, it’s now easier to switch profiles on XJDeveloper’s Analyser, Debug Connection Test, and Pin Mapping screens: instead of needing to change the project’s default setting, you can now switch freely between profiles.

All the benefits that come with the 3.11 release demonstrate XJTAG’s continued commitment to maintaining its leadership in the field of boundary scan test systems. This latest software is now available for download from www.xjtag.com for existing clients with a valid maintenance contract. XJTAG can be contacted on +44 (0)1223 223007, via email at enquiries@xjtag.com, or through its worldwide network of distributors. More information can be found at www.xjtag.com.


About XJTAG (www.xjtag.com)

XJTAG is a world leading supplier of JTAG boundary-scan hardware and software tools. 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. The company focuses on innovative product development and high-quality technical support. For more information about XJTAG, its products and its services, please visit www.xjtag.com.

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