gEDA-user: generic symbols en custom pin numbers
As sort of an extension to heterogeneous symbols I wonder how I can make generic symbols, consisting of a set of subsymbols, e.g. a relay coil and several types of contact arrangements like SPST and SPDT, all as separate, little symbols. In my design I would then select the appropriate subparts and assemble a particular arrangement, assign the same refdes to them (probably suffixed by a, b, c or similar in lower case). So far this is simply possible with gschem AFAIK. BUT: relays (to stick to the example) come in (very) many different physical shapes and layouts, each with its own, vendor dependent pin numbering scheme. Therefore, it would be nice to have the possibility to define the pin numbers in the instantiation at the schematic level rather than the fixed pin numbers as defined in the symbol (class level). The slot mechanism is not intented nor useable for this. I have not found any way to promote the pinnumbers to the instantiation or other ways to achieve this. Suggestions more than welcome! thank you, hans ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: generic symbols en custom pin numbers
Hans Schultz: As sort of an extension to heterogeneous symbols I wonder how I can make generic symbols, consisting of a set of subsymbols, e.g. a relay coil and several types of contact arrangements like SPST and SPDT, all as separate, little symbols. In my design I would then select the appropriate subparts and assemble a particular arrangement, assign the same refdes to them (probably suffixed by a, b, c or similar in lower case). So far this is simply possible with gschem AFAIK. BUT: relays (to stick to the example) come in (very) many different physical shapes and layouts, each with its own, vendor dependent pin numbering scheme. Therefore, it would be nice to have the possibility to define the pin numbers in the instantiation at the schematic level rather than the fixed pin numbers as defined in the symbol (class level). The slot mechanism is not intented nor useable for this. I have not found any way to promote the pinnumbers to the instantiation or other ways to achieve this. I think you currently are restricted to create a seperate footprint file for each of your alternatives. Though it would be nice to be able to pass parameters to the footprint and more or less treat is like a subroutine. Regards, /Karl Hammar --- Aspö Data Lilla Aspö 148 S-742 94 Östhammar Sweden +46 173 140 57 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
