Jason Hecker
2004-05-16 01:36:16 UTC
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?
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?