Re: gEDA-user: Any-to-one connections

[Dave McGuire <mcguire-atMUNGEDneurotica_dot_com>]

On Mar 15, 2007, at 8:42 AM, Ryan Seal wrote:
>> I'm currently drawing a schematic using gschem. There's a GAL in  
>> it and
>> some other chips. Since the GAL's outputs /inputs are all  
>> equivalent I
>> don't care which output is used for some task. For example I want to
>> feed a GAL output into the output enable of an EPROM. So I want  
>> one of
>> the GAL's outputs connected to the OE input of the EPROM, but I don't
>> care which one is used. Is there a way to tell gschem about this?
>> Depending on which output is used the resulting pcb would use a
>> different number of vias, etc.
>>
> I do the following:
> 1. Assign all I/O in the schematic.
> 2. Generate a pcb file.
> 3. Look at the layout at point out potential problems.
> 4. Go back and alter the schematic connections.
> 5. Regenerate the pcb file (just a new net file).
> 6. Load the altered net into the existing pcb layout.
> 7. Repeat until satisfied.

   I have to think that this process could be automated by some sort  
of a script.  A very CPU-intensive one, though.

           -Dave

-- 
Dave McGuire
Port Charlotte, FL




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