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JTAG Pin Finder


    Now selling the JTAG Pin Finder. This device can sniff out the 4 main signals needed for JTAG interfacing from 12 unknown          signal lines, namely TDI, TDO, TCK, and TMS. In addition, it will also find the TRST signal line.


   This device connects via USB to a PC running the Parallax Serial Terminal which can be downloaded from Parallax.com and         will display the results once completed.

    Searches can be of one of two ways:
        - Using the Instruction register (Inputting the IR width and the IDCODE command) and usually results in a single match.
        - Without the Instruction register (Results in several matches from thousands which can then be tried individually for the                  correct combination).

    There is an article on the operation of this device here.

    This device has been sold to several law enforcement agencies to assist their electronics crime labs in determining the JTAG          pins of primarily cell phones.

    If interested in a quote, please send an email to info@100randomtasks.com with your location(city/country)
Please note: This device is for 5.0v and 3.3v systems. Please ensure that your system is compatible.
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