Loading netlists (was Re: gEDA-user: Land Grid Array packages)

["Tom Cook" <tom.k.cook@xxxxxxxxx>]

Thanks for the suggestions; I have figured out that making newlib footprints is not nearly as scary as the M4 version.

But now when I try to load a netlist, pcb refuses saying, "Empty netlist file!"  The netlist file I am trying to load contains the following:

unnamed_net8    U1-1 J1-8
unnamed_net7    U1-10 J1-7
unnamed_net6    U2-16 J1-6
unnamed_net5    U1-2 U2-3 J1-5
unnamed_net4    U2-1 U1-3 J1-4
unnamed_net3    U2-2 U1-12 J1-3
unnamed_net2    U1-11 U2-7 U2-14 J1-2
unnamed_net1    U2-10 U1-4 J1-1

As you can see, it is not a complex design, and the netlist file is not empty.  Is this likely to be something I have messed up in my footprints?  Or is it something else?  (Note: both U1 and U2 use footprints that I have developed myself).

Thanks for your help,
Tom

On 6/23/06, swm@xxxxxxxxxxxx <swm@xxxxxxxxxxxx > wrote:

If you are looking for a way to make gEDA footprints, there's a Python
script by Darrell Harmon that can generate PCB footprints from a simple
script.  You can change key paramaters from the script (pad size, number
of pads, etc) pretty easily.  It's also not too hard to modify the Python
code, if a script is not powerful enough.  See:

http://www.dlharmon.com/geda/footgen.html

Steve Morss


> Hi,
>
> Harold Skank, gEDA user here.  The best footprint source I have found (I
> probably had to buy, I don't recall) is a CDROM entitled "IPC Generic
> Requirements for Surface Mount Land Pattern and Design Standard,"  by
> TECHStreet.  The "gotcha" is that it is a Microsoft compatible product.
> Perhaps you could run it under WINE.  I never could, but I didn't spend
> much time trying either.
>
>       Harold Skank
>
> On Thu, 2006-06-22 at 14:44 +0930, Tom Cook wrote:
>> Hi,
>>
>> I have been an occasional gEDA user for a few years now, but haven't
>> had to ask questions before.
>>
>> Does anyone know where I can find PCB footprints for land grid array
>> packages?  I am only looking for the low pin-count varieties, not the
>> 1000+ pin monstors.  I want to use components such as Analog Devices'
>> ADIS16003 in a design, but can't find any reference to using these
>> types of packages with gEDA.  I think I can come up with my own
>> schematic symbols, but creating a new PCB footprint is probably beyond
>> me at this stage.
>>
>> Thanks,
>> Tom
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