I need to make a key matrix. I'm considering selecting a switch which has 4 leads (two leads per internal net):
o--+--o ' / | o--+--o This appears to be a boon for the grid-style routing I need for the switch matrix. The rows can hop the columns inside the part, making everything fit on a single layer. (obviously I wouldn't do this with an IC, but it seems harmless for a switch) Anyway, if I give all pins different numbers, PCB doesn't know about the internal structure. If I give the electrically connected pins the SAME numbers then PCB thinks it needs to connect them with copper itself. If I connect them on a 'fake' layer then the autorouter works but the toporouter spins and I have to kill pcb. Any better ideas? -- Ben Jackson AD7GD <b...@ben.com> http://www.ben.com/ _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user