Re: gEDA-user: global nets

[John Doty <jpd@xxxxxxxxxxxxx>]

On Aug 7, 2008, at 10:29 PM, Kai-Martin Knaak wrote:

> On Thu, 07 Aug 2008 20:04:29 -0400, gene wrote:
>
>> OK, I feel dumb -  I can't find it anywhere   How do I declare a  
>> global
>> net?
>
> All netnames are global with regard to the current sheet. Whether  
> or not
> netnames are global in a hierarchical stack of schematics, depends  
> on the
> settings in gnetlistrc. This file can reside in $HOME/.gEDA or locally
> next to the schematics. Defaults are set in system-gschemrc. Copy the
> respective lines to your local gnetlistrc, if you want a different
> behavior.
>
> There is no way to make individual netnames global (none that I know).

Generally, no. However if your target is SPICE simulation you may use  
the "spice-directive" symbol to put a ".GLOBAL" card in your top  
level netlist.

> However, you can differentiate between netnames granted to nets the
> netname attribute and netnames defined by the net attribute. This  
> aims at
> power symbols, which set their net with the net attribute. That  
> way, you
> don't need to hand the power nets in the sub sheet symbols.
>
> HTH,
> ---<(kaimartin)>---
> -- 
> Kai-Martin Knaak
> http://lilalaser.de/blog
>
>
>
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John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd@xxxxxxxxx




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