On Fri, 16 Jul 2004 14:02:48 -0500, Mudda wrote:
> I would like to communicate with a J1850 system. I am wondering whether
> there is any hardware available for this similar to CAN. Is there a
> possibility to find exampls for this kind of communication.
I'm still new in this area but I will try to help. AFAIK, J1850 comes in
two flavors: VPW and PWM. You can purchase an adapter that converts RS232
signals to those required by J1850 for about $100.
I suggest using an adapter from Scantool.net. I say this because I
have one and it's very easy to use. It's flexible enough to use with a
terminal (hyperterminal, minicom, etc.) or to interface with LabVIEW, as I
have done for you already. Go to OpenG.org for the download:
http://openg.org/tiki/tiki-index.
php?page=On+Board+Diagnostic+-+OBDII
Let me know if it works for you. The interface is a little weak but the
VIs should clue you in on how to handle communications. I plan to add
another update in a few days so check the site regularly. I would
appreciate your feedback.
-kevin
