On Tuesday 03 April 2007 09:51, Patrick Doyle wrote: > > With gnucap you can use "fault", "modify", "param" to > 1) How would I model a switch?
The switch device? Type "S". (Same as Spice) > 2) Did I forget a switch when I built Gnucap that would > enable an X windows plot, or does Gnucap only support ASCII > plots? Gnucap only directly supports ASCII plots. If you want a nice plot, use "gwave". I plan to make it hook up automatically, but for now you need to do: print ac ....... ac 20 20k oct 10 >some_file !gwave some_file (notice ... the "print" command, not "plot") You should be able to do: ac 20 20k oct 10 | gwave but gwave doesn't work in a pipe. > 3) I fetched the spice model for an MMBT3640 from > Fairchild, and saw that my simple circuit loaded up in > ngspice, but when I attempt to load it in Gnucap, I get: > > * gnetlist -g spice-sdb -s -o mictest.ckt mictest.sch > .MODEL MMBT3640 PNP LEVEL = 1 IS = 1.41E-15 ISE > ^ ? no match > > (Note that the "^ ? no match" points to the word PNP in the > line above. That's wierd. It should work. PNP should find the native BJT model. > Does this mean I need to "attach" to an ngspice model > somehow? If so, how? That kind of message could mean you need to "attach" a model, but it doesn't here. It should work. Send it to me and I will look at it. How to attach a model is with the attach command. "attach my_model.so" This is in the manual. There is a tutorial supplied in the tarball, but it needs updating. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user