Frank Miles wrote: > Newbie questioner... > > Is there a way to selectively hide the power pins of a multi-sectioned > component? > That is, without having to resort to the "hidden connection" (net attribute) > method? Create multiple symbols.
> > A simple example: a 7400 package, with 4 2-in nand gates. I would create three symbols for this: a) True-logic two input nand, with four slots. b) Inverted-logic two input nor, with four slots (I can't help it, I spent too many years doing ECL... bubbles gotta match the signal polarity and function if you expect to survive a design review with me. A bubble/polarity mismatch indicates logical inversion. And get off my lawn :) c) A power symbol. It's OK to have the same refdes assigned to multiple symbols, refdes and the 'slot' attribute is how the netlister sorts it all out. I like to keep the logic on a logic page, and do one of two things with the power symbol. On small designs, it goes in an out-of-the way corner of the same page as the logic symbols. On large designs, all the power symbols go on a (some) page(s) designated as a "power symbol ghetto". I used to use the hidden power attributes in order to reduce clutter, but in the end it creates more hassles than it solves. -dave _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user