Extending Boundary-Scan to Measure Analog Voltages
Oct 12, 2005
JTAG Technologies supports mixed-signal monitor from National Semiconductor
JTAG Technologies, a leading provider of boundary-scan tools for the electronics industry, has announced a graphical software tool that supports use of the new SCANSTA476 analog voltage monitor from National Semiconductor Corporation. JTAG Technologies' STA476 Utility program works with an evaluation board from National Semiconductor containing the SCANSTA476 to perform and report DC measurements on eight analog/mixed-signal input channels.
Measurement of mixed-signal levels can be a very beneficial troubleshooting technique during product development, environmental screening, functional testing, and in field service to verify power supply and reference voltages.
Moreover, today's mission-critical systems can take advantage of the technique to perform health monitoring and prognostic functions while in operation, via an embedded boundary-scan structure.
"National Semiconductor's SCANSTA476 expands JTAG test into the analog realm by simplifying measurement of mixed-signal or analog voltages," said Ken Filliter, senior product marketing manager for National Semiconductor Corporation's Interface Group. "The JTAG Technologies Utility capitalizes on the benefits of the SCANSTA476, making it even easier for customers to monitor critical analog signals throughout the product life cycle."
The STA476 Utility from JTAG Technologies provides a graphical user interface allowing selection of any of the eight analog inputs on the evaluation board. DC measurements can then be conducted on the selected channel(s) using a preselected JTAG Technologies controller to initiate the test and access the results over a standard 1149.1 boundary-scan interface.
The utility program is available free-of-charge for customers at the Customer Service Area of the JTAG Technologies website. www.jtag.com