On Fri, 2010-08-06 at 17:42 -0700, Andrew Poelstra wrote: > > Well, I don't think we can make things that simple. You mentioned > ensuring decoupling caps are close enough to their components. But > some components have Vcc and Gnd awkwardly placed, so to connect the > cap would require dropping to another layer to avoid getting in the > way of other pins. >
These "Maximum Distance between OpAmp and bypass Cap" problem is really a special but important case. It is more related to two pads/pins than to nets. We can click in gschem on a pair of tow pins to mark this pair with the condition "Max Distance = ...". Autoplacer can use this information in PCB program. RatsNest lines in PCB can specially mark these pin pairs. And after we have routed our board DRC check may verify if these maximum distances restrictions are fulfilled. The big problem is again how to transfer netclass information from gschem to PCB (and maybe back). I really have no good idea and my Unix programming skills are too weak. Saving and loading files is simple, but not really nice in my opinion... Best wishes, Stefan Salewski _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user