On Wed, 2006-09-27 at 14:54, John Luciani wrote: > On 9/27/06, Vaughn Treude <[EMAIL PROTECTED]> wrote: > > <snip> > > > > > > > > > > > > > > > Does it only work when all the components are embedded? Sounds like > > > > that could make the resulting file pretty big. > > > > > > No. Embedding components is useful when sending your schematic to someone > > > else who may not use the library that you are using. > > > > > > > > I've attached the SCH file rather than putting it in line - hope that's > > > > OK. I've embedded all the components, and it still doesn't consolidate > > > > +5V and Vcc. > > > > > > The problem is that you did not connect your power symbols to their > > > respective components with a net. You have the pin ends against each > > > other. > > > If you move the power symbols and use net connections the schematic will > > > netlist and load into PCB. > > > > > > The schematic below will netlist and load into PCB (provided that you > > > update the footprint attributes to match footprints on your system). > > > > > > (* jcl *) > > > > You're right, I goofed. :-) It's easy to miss that because the red > > square goes away making it look like the two components connected. > > > > I did a netlist of the modified file and it looked the same as the > > previous one I had. Perhaps it gets modified when it's sucked into PCB. > >
> > I'm not actually averse to creating custom devices; In the last couple > > of weeks I've created about a dozen gschem symbols and at least that > > many pcb footprints. It's just that I'm getting tired of all the work! > > :-) > > Managing a component library is a fair amount of work that is not much > fun to do. > There is no way around it. For schematic symbols you need to verify > that the symbols > match the manufacturer specification sheet. For PCB footprints you need to > verify that the footprints match the manufacturerspecifications and > your manufacturing > process. > > I am surprised that you needed to create that many footprints since there are > quite a few already created. Have you checked out gedasymbols.org and > my website http://www.luciani.org/geda/pcb/pcb-footprint-list.html > I did not know you had such a big collection of footprints! It would have saved me some work. My circuit has a few off-beat components on it, but I was surprised to see that a number of standard SMD components were not in there, and I ended up creating them. > > I'm beginning to think it may be worthwhile to convert the 14 or so > > devices on my existing schematic to a "no embedded net" format. Your > > script would make that easier; I was afraid I'd have to do it manually. > > I like the idea of having the +5 and ground connections shown with the > > decoupling capacitor. It's unfortunate it requires a separate symbol, > > but I don't think there's any really clean way to approach it, > > considering that the power pins don't fit into the "slot" concept. > > Having a separate symbol is a little more work but is not too bad. > We have discussed (at the Freedog meetings) having multiple types of > slots in a component symbol. > I hate to be a pest on this issue, but I never did get gnetlist to handle the embedded nets correctly. Not that I mind that much changing the symbols to eliminate embedded power pins (I'll do whatever works) but I don't know how else to handle the connections between the sheets of the schematic. I can't afford the time to keep manually correcting the netlists. I don't know what version of gnetlist I'm using, as the usage message didn't seem to include version info. But am I correct in using the "-g PCB" flag? I don't see what I'm doing wrong, but there must be something. When I netlist the modified SCH file you sent me still does not consolidate the +5V and Vcc nets. I get the following result: +5V R1-1 unnamed_net3 U1-10 R1-2 R2-1 GND R2-2 U1-7 Vcc U1-14 unnamed_net2 U1-6 U1-2 unnamed_net1 U1-9 U1-4 U1-3 Besides gnetlist, is there some other way to generate a netlist? Thanks again, Vaughn > > Thanks to you, and to John G., for all your help! > > Your welcome. > > (* jcl *) _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
