JTAG introduces JTAG Maps design application | Automation.com

JTAG introduces JTAG Maps design application

JTAG introduces JTAG Maps design application

November 9, 2016 - JTAG Technologies introduced their new collaborative product with Altium – JTAG Maps.

A large number of today's electronic designs feature JTAG/boundary-scan components that provide test resources during hardware debug, manufacturing test and even depot repair. JTAG Maps is an extension to the Altium Designer tool suite that allows the user/engineer to assess the capabilities of the JTAG/boundary-scan resources on their design - before committing to layout.

Boundary-scan device models (BSDLs) are pivotal to any JTAG/boundary-scan process as they indicate precisely which pins can be controlled or observed by JTAG/boundary-scan. However BSDL models are not always available in a timely manner. To overcome this potential problem JTAG Maps for Altium includes an 'assume scan covered' feature enabling a view of potential boundary-scan coverage without a specific BSDL. This feature can also be used to indicate fault coverage to a connector (set to assume scan covered) or to highlight – the differences in fault coverage between two equivalent parts, one with and one without built-in JTAG/boundary-scan.

JTAG Maps for Altium will automatically detect the scan chain path (or paths) with no limits to the number of paths (aka TAPs) in the design. The nets associated with the TAPs will be highlighted separately from the 'testable' nets using different colors.

While most users will want to simply use the quick coverage report that JTAG Maps for Altium can provide, it is still possible to import a more accurate picture.

After exporting a JTAG ProVision project, the data can be sent to the user’s local JTAG Technologies office, Approved Application Provider, or approved JTAG representative for further analysis. A simple message file containing full fault-coverage information can then be read back into JTAG Maps for display/highlighting.

For engineers wishing to apply JTAG/Boundary-scan tests directly onto their design JTAG Technologies can offer two further options, JTAG Live for functional testing with boundary-scan and JTAG ProVision a full-blown automated test program generation and device programming system. 

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