Protocol

[David Cooley]

On Tue, 11 Apr 1995, Andrew Dennison wrote:
> > 
> It may be possible to implement the ODB1850?? (I can't remember exactly 
> what it is called) standard which has been mentioned previously on 
> this list.  I guess it has a standard protocol for data monitoring.  
> Anyone care to shed some light on this??
> 
Harris has a complete and inexpensive line of OBD_II SAE J1850 comm 
protocol IC's.  The protocols are too complex for a mail post (unless I 
had a week to write...) but the SAE publication HS-3000 is the complete 
shebang...
One of the harris IC's is the HIP7030A0... It is a 68HC05 cpu with 
SENDEC, crc generation etc... It only requires code and the HIP7020 Bus 
tranceiver chip.
Later,
Dave Cooley
cooldave at nando.net