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Date: Tue, 09 Jun 2015 16:05:27 +0300
From: "Maxim Feoktistov (max AT lsol DOT ru)" <geda-user AT delorie DOT com>
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Problem with BGA footprint generator
References: <CALT8Ef7A2XeK6WzZu2DZY_4iKb6V__nV7iZojzc+oP1pDF7qfg AT mail DOT gmail DOT com>
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Reply-To: geda-user AT delorie DOT com

On 06/08/2015 12:12 PM, Shashank Chintalagiri 
(shashank DOT chintalagiri AT gmail DOT com) wrote:
> Hi,
>
> I was trying out the BGA footprint generator located at :
>
> http://members.impulse.net/~uhl/utilities/geda_fp_creator/fp_creator.html
>
> The generated footprint seems to have the pads reversed (A1 in place
> of A6, and so on). Could someone please take a look and let me know if
> I'm doing something wrong? Attached is the footprint that was
> generated. (TFBGA 48 pin, 0.75mm pitch, 0.35mm balls, 0.30mm pads)
>
Ohh...  I also has been use this creator, and don't look that pad 
reversed. Now, I receive ordered board from manufacturer try to put DDR2 
chip to their place and... Oops...
(DDR2 chip has six absent balls that may be used as key).

To fix bug in creator very little patch will be enough:

132,134c132
<                var jj;
<                jj=(columns-j)+1;
<                pin_name = column_name + jj;
---
 >                pin_name = column_name + j

But I can't find contact e-mail of the author...
You may "save as.."  this page and edit line 132, and use it off-line .

-- 
Best regards, Maxim Feoktistov