[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

gEDA-user: c8900a symbol comparison



[other list ;]

Ok, I did some edits to my cs8900a symbol to try some of the ideas
from John and some from me.  Specifically:

1. Pins for busses are 200 mils spacing instead of 400 mils.

2. Multiple power pins for the same power net share one label.

3. Pin numbers are aligned via the corner closest to the pin, 100 mils
   from the symbol edge and 50 mils from the pin (this leaves enough
   room for inversion bubbles).

I also tossed in overbars for inverted signals, to see how it works.
Sadly, without gschem support for aligning the ends of the bars with
the symbol name, the ends don't line up since the strings don't end on
perfect grid boundaries.

Comparison - left is the symbol built with official gEDA rules, right
is John's compact symbol, the middle one is my compromise:

   http://www.delorie.com/pcb/size-compare.html

new symbol:

    http://www.delorie.com/pcb/cs8900a.html

Feedback?