General purpose

Bus pirate




Arduino based RS-232 scanner


Arduinull ======319

“The first simplified scanner running all in the microcontroller. ”


Arduino based JTAG scanner



“Not meant for scanning pins to find JTAG. It does however implement some logic not in any of the JTAG scanners mentioned here. In particular, support for chain mapping and perhaps others I’m missing. ”

JTAG Finder

“the microcontroller provides a pin protocol/interface to a C client running on the PC which does the actual scanning logic. This was one of the first (if not the) JTAG scanner. It trades simplicity of code and protocol for efficiency and speed”


software/protocol.txt · Last modified: 2013/10/20 14:59 by
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