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Subject: Re: [geda-user] Problem with BGA footprint generator
From: Jonatan =?ISO-8859-1?Q?=C5kerlind?= <jonatan AT akerlind DOT nu>
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Date: Wed, 10 Jun 2015 07:53:32 +0200
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On tis, 2015-06-09 at 14:29 -0700, Edward Hennessy
(ehennes AT sbcglobal DOT net) wrote:
> Jonatan,
> 
> In this device, the columns are letters and the rows are numbers (after rotating clockwise by 90 degrees, so that A1 is in the upper left).
> 
> http://cds.linear.com/docs/en/datasheet/4630fa.pdf
> 
> The datasheet also shows A1 in the lower left. I think the convention is to put A1 in the upper left on drawings.
> 
> Cheers,
> Ed

Interesting, so Linear actually use both schemes then. Always good to
know what to watch out for!

/Jonatan