El sáb, 10-12-2005 a las 16:07 -0500, Dan McMahill escribió: [snip] > > IIRC, the netnames could change if you use one backend or another, due > > to netname restrictions in some programs... > > This is certainly true that there are netname restrictions. In fact the > place where that mapping is done (and the only place it is known) is in > the specific gnetlist backends. It may not be the best way, but some > commercial tools deal with this by creating a database file at netlist > time which maps schematic names (node names, pin names for currents, > instance names, etc) to simulator names. It would not be hard at all to > dump out this database because as part of the netname modifications, a > database is already created to detect netname collisions due to target > netlist name limitations.
Certainly this is how most commercial EDA work. I meant I'm not so sure how this scheme would work if a netname needs to change between gschem and the other app. > > It may be not the best way, but a workaround for this could be the > > following: > > - Click on any net in gschem. > > - Get the components and its pins connected to that net. For example: > > pin 2 of R1, pin 3 of R2. > > Does this capability exist within gschem already or is that part really > just a part of gnetlist? If gnetlist can do it, gschem can also do it... I don't know if it can do it already, but if not, it shouldn't be so difficult to add (just look at how gnetlist does it). > > - Tell pcb or whatever app to select the net connected to pin 2 of R1 > > and/or pin 3 of R2. > > This way you handle nets as they are: a connection between pins of > > components, and you are not tied to any name (it can change when you > > netlist the schematic). > > For pcb this doesn't sound bad, especially in light of DJ's reply to my > mail (that he had just added this to the hid sources). I'm not sure how > well this may work with simulators. I suppose since we have to create a > netlist anyway for simulation, that a database of sorts could be > constructed at the same time. Let the simulator developers answer this...
