I am trying to get JTAG working with Realtek's RTL8181 part. It uses a Lexra LX5280 core which is mostly MIPS R3000 compatible (bar the unaligned load and save instructions). A chronicle of my efforts can be seen here: http://www.wireless.org.au/~jhecker/rtljtag Realtek can't offer me a BSDL file as they claim they use some 3rd party tool to talk to it with JTAG. My lack of luck with Macraigor's Wiggler and a demo of their OCD debugger (in Windows) in EJTAG mode just yielded a screenful of errors. Has anyone had much experience with Wigglers and MIPS based parts that don't support EJTAG? Any ideas on trying to reverse engineer the boundary scan chain?
