• TMPL Machines

Analog scanner

JTAG Technologies offers mixed-signal boundary-scan testing. This analog scanner will enable to explore and exploit the capabilities of IEEE 1149.4, the standard for analogue testing via boundary-scan. JTAG-1149.4 Explorer(tm) is an easy-to-use evaluation system consisting of a sample mixed-signal application board, boundary-scan controller, and a graphical software measurement environment. The sample application board contains 1149.1- and 1149.4-compliant ICs as well as analogue instrumentation including a current generator, analogue to digital converter, digital to analogue converter, and an AC-signal source. Using the software tool"s GUI, developers select components or specific analogue nodes and conduct embedded analogue measurements via the IEEE 1149.4 test buses. The system enables the user to perform resistance, capacitance, voltage, AC-signal and characteristic impedance measurements without the need for additional hardware. The graphical user interface provides pull-down menus for selection of specific components or nodes on the evaluation board for the measurements. In another application of the system, engineers can make analogue measurements on their own target board by using the resources (stimuli and measuring capabilities) of the JTAG-1149.4 Explorer. The only requirement to use the 1149.4 JTAG Explorer is a Windows-based PC with a parallel printer port.