Lpc2000

> I'm a "me too" on this topic :)

Start with SAE http://www.sae.org/servlets/index

We had a large standards book from them (iirc) that described
all the protocols, the key codes, and what code meant what. As I
recall it was like $200. I sent it back at the end of the
project, so I'm asking my customer for details, perhaps an ISBN.

There are a number of interfaces, I think one is VPW, PWM and
ISO9141 Iso 14230 (Keyword 2000, or KWP, the one I used)

Yes, look at http://obddiagnostics.com/ . We bought one of those
scan tools and it worked nicely for looking at the traffic. They
even have a schematic of their hardware. More information in
their programmers guide.

We also used
http://www.intrepidcs.com/neoVI/networkProtocols.htm to look at
the CAN bus traffic. They mention J1939 compatibiliity, but I
didn't use it.

Randy
www.newmicros.com