This page will try to explain my experience with jtag cable.

Software

Currently supported jtag utility is UrJTAG

checkout source

svn co https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk urjtag
cd unrjtag

include

cd include
./autogen.sh
sudo make install
cd ..

jtag

cd jtag
./autogen.sh
make