Schematic requirements

• Most importantly, every component you want to show up in a netlist must have a refdes= attribute. This is *VERY* important. gnetlist should warn you if you have a component which doesn't have a refdes=, but there have been bugs which do not cause this warning.

• You can label all nets using the label= attribute. You only need to attach this label to one net segment (of an electrically connected net) for all the net segments to inherit the label.

• You can have multiple schematics in a design (which is actually a confusing term since it means many different things to people). To use multiple schematics to create a single netlist, just specify them on the gnetlist command line.

• If you name nets the same, then these nets will be electrically connected. Same net names spawn all the specified schematics.

• There are quite a few issues that deal with hierarchy please see the hierarchy section below.