Re: gEDA-user: input/output ports gschem

[Jim Lynch <jim@xxxxxxxxx>]

Felipe De la Puente Christen wrote:
> Hi,
> 	I did a design using input, output, and io ports based on the
> input-2.sym available in the library. I thought that the net attribute
> would make the net between the component's pin and the port to be named
> the same as the port's net attribute, but I was wrong and it's still
> necessary to put a netname on the nets involved to make the logical
> connection at the other side(another port + net + component's set).
>
> 	So the question(suggested by DJ) is: How are these input/output
> graphical ports supposed to work?  Are they merely graphic things, or
> does that net attribute have a special/useful function?
>
> Thank you very much in advance.
>
> Best Regards, Felipe.
>
>   
I think they are just connections.  That is, they are just a way to 
connect "nets" or wire things together. The way I use them is to have an 
Output on one schematic with the net set to a unique value that is the 
same as the net on an Input on another schematic. When the netlist is 
generated the two components (Input and Output) are connected.  The net 
parameter seems to be the most important element.  I'm not sure what the 
netlist value does.

Jim.




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