Mentor pads viewer
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XJTAG Chain Checker identifies connection errors and reports them to the developer during the design process. A single connection error would inhibit an entire scan chain from working. XJTAG Chain Checker identifies common errors in a JTAG scan chain, such as incorrectly connected Test Access Ports (TAPs).
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The XJTAG DFT Assistant comprises of two key elements the XJTAG Chain Checker, and the XJTAG Access Viewer. This software is free for PADS users of VX.2.1 or higher and can be downloaded from the XJTAG website.” “By detecting and correcting these faults earlier, companies do save both time and money. “PADS products now include the XJTAG DFT Assistant that provides engineers with a free, easy to use interface to check if JTAG chains are correctly connected and terminated at the schematic capture stage, long before the PCB is produced,” said Jim Martens, Product Marketing Manager, PADS Solutions Group.
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XJTAG DFT Assistant helps validate correct JTAG chain connectivity, through full integration with the PADS schematic capture environment. Failure to identify and fix design errors at an early stage can result in a board re-spin and a costly delay to a project. JTAG was designed to solve the problem of access and so it is now vitally important to get the JTAG chain right at the design stage. Printed circuit boards (PCBs) are increasingly densely populated and access to pins under many packages, such as Ball Grid Array (BGA), is virtually impossible. Developed by XJTAG, the free software for PADS Schematic Design significantly increases the Design for Test and Debug capabilities of the schematic capture and PCB design environment.