AVR-Chat

Hi Chuck,

> I was wondering about how to be sure the ends of
> the bus are terminated so as to minimize
> reflections.  Is the best way to do this by
> connecting a scope (mine is 100mhz) and driving the
> line watching for reflections and adjusting the
> termination for minimum reflections, or am I
> overcomplicating/oversimplifying this?

I have used cheap ISDN Wires, with 10k Pullup/Pulldown
and 120R Line Termination. These R's I have used
only on one Side of the Line. In my experence with
that Chips you normaly need only the PullUps/Pulldowns
If you run in Troubles with your Line, the easiest
way is, to take an 10Turn Poti with 500R and just
try it. (In that way i have done ist).

mfg
mike



	

	
		
___________________________________________________________
Gesendet von Yahoo! Mail - Jetzt mit 100MB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de