Peter Clifton wrote: > Another technique I tried (before the above), which the assembly house > didn't like, was to outline the hierarchy blocks on the board. I added > manual text to those blocks labelling the hierarchy block they belonged > to. Within the block, the refdes text was stripped of its hierarchy > prefixes.
This sounds so reasonable to me. But only if I think of humans doing the work. I can see why a CM might want a unique refdes, or no refdes.The CM's robot might get lost and think a refdes meant where it was -- untrue if it is repeated several times. Or the CM's robot might have a vision system method of confirming placement that is confusable by repeated refdes's. I like Kai-Martin's compact form with "" as a hiearchy separator: 5R24. It's blown if you have more than one sublevel from the top of hierarchy... or maybe not... suppose top and 2 levels, then R's on three levels would be: R1 R2 3R1 4R1 4R2 3S1R1 where S1 S2 ... designate 3rd level instances. Its hard to pick a set of single letter names to use as instance names to use with a "" separator, since so many are "used up" by first letters of component names: Cap Diode Fuse J(connector) L(inductor) Q(transistor) Resistor Terminal U(IC) Varactor Xtal John Griessen -- Ecosensory Austin TX _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user