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Joint Test Action Group (JTAG)

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Brief description:

JTAG is often used to program and debug microcontrollers, embedded systems, FPGAs, and much more. It has a wide range of capabilities, and is supported by a large amount of hardware. It's extremely flexible, and can be used for many other purposes as well. When using the JTAG analyzer, make sure that you are sampling at least 4 times faster than the clock speed to accurately capture the data.


Top resources:
What Logic decodes:

  • TAP state machine states
  • Data from TDI data line
  • Data from TDO data line

trello ID: 572919343fb6706a9e42ce72
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