[snip]
>This has the general flaw that all instance-based solutions have: if
>the next project needs the same circuit at twice the speed, you have
>to track down every nand-1 instance and change it to, say 74AHC00.
>But if you have a project NAND symbol, you only have to fix that
>symbol: you don't even need to change the schematic at all.
Yes, instance-based solutions vs symbol-based solution have distinct
respective tradeoffs. Luckily with gEDA/gaf you will get to choose your
own poison (as it will continue to support the heavy-symbols approach
and hopefully support some sort of instance-based approach).
-Ales
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