I have a microprocess device I would like to patch. It has some headers and I know one of them is JTAG, but I can't figure out which nor which pins have which JTAG lines (TRST, etc). Does anybody have some suggestions re. how to identify the JTAG pins, perhaps using a scope and a multimeter?
Identify JTAG pins
Mar 04, 2006
1 Replies
do you know which processor is on the board?
which kind of header do you have ? (20pin 14pin 10pin ...)
Then please try to find a corresponding connector in our doc :
formatting link
This Application Note resumes the Common JTAG interface pinouts used by the most popular manufacturers of processors, FPGAs or CPLDs devices as ARM, Altera, Lattice, MIPS, Xilinx and so more
Regards, Laurent
formatting link
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required