[sdiy] Eagle

[Neil Johnson]

Paul,

Try
	ripup;

(semicolon at the end)

in the command window in the PCB editor.  It will ask you if you want  
to rip up all signals, click yes and it should do as it says.

With the schematic and pcb editor working in tandem you shouldn't  
have to worry about the netlist as it should all be handled behind  
the scenes.

As for autorouting - UUUGGHHH!!!  I avoid autorouters like the  
plague.  In the past I've had the pleasure of working with skilled  
PCB layout people and they never,ever use autorouters.  The closest  
they come is push-n-shove.  Even on large multilayer boards  
autorouters have a knack of mucking things up.

Neil


On 7 Sep 2008, at 20:03, Paul Maddox wrote:

> Guys,
>
>  Thanks for the help, but none of these worked.
> I select a group (even just half a dozen tracks) and click 'ripup' and
> it deletes one track.
>
> and I did have the board open at the same time as the schematic (it
> does this by default), so I'm at a loss as to why the changes in the
> schematic haven't been replicated in the board and why I can't rip up
> the tracks.
>
>  Even if I rip up the tracks the problem now is that the netlist on
> the board doesn't match the netlist on the schematic, do I have to
> re-export it or something?
>
> Paul
>
> On Sun, Sep 7, 2008 at 12:10 AM, ASSI <Stromeko at nexgo.de> wrote:
>> On Sonntag 07 September 2008, Paul Maddox wrote:
>>>  I'm trying to use Eagle LIt, I foudn a mistake on a board I  
>>> autorouted.
>>> So I updated the schematic, but now I need to rip up the old board,
>>> update the netlist, and then re route it.
>>
>> Whenever you change something, you need to have both the board and  
>> the schematics open.  If you do this, they will keep in synch as  
>> far as this is possible.  If you edited the schematic without the  
>> board open I think an ERC should spot the differences, but you  
>> need to manually correct them.  If the differences are slight  
>> (pinswap or something like this) it is usually better to just rip  
>> a few traces and re-route incrementally.
>>
>>> I can only figure out how to ripup a single track, not the board,  
>>> and
>>> updating the netlist doesn't seem do-able, is it?
>>
>> Execute "ripup *" in the command line or click ripup, then the  
>> green traffic light symbol.
>>
>>
>>
>> Achim.
>> --
>> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk]>+
>>
>> Factory and User Sound Singles for Waldorf Blofeld:
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>>
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