X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=date:from:to:subject:message-id:in-reply-to:references:mime-version
         :content-type:content-transfer-encoding;
        bh=v0yQx1uQpDvZJ9sHlWTh2CdrRm2wew+kvk+Spc0Cxtk=;
        b=wt6LU7mPz9sL8B5j7nqCfxwidHBbtItVBltXTCogDz7LUjMl5zD1pR21occaZTrDyP
         9QfiGOg09T+yVF1JHHTgQaHdgwEYyvpTMiMZNba9r8ySFHdHAsQOR1+/djAA48U1wSeA
         VlIjBJa8kQR7w5UED7ACX9uSvQOSjqvnzvUpODeN/O1u/5TkUSu+Y63WyMQAcAar8eEt
         zjYS2Q98kpPliis57m1navSmdhsP6WY103/JdtTnTyNEJ7eyCW8TKetRnX160zuR6mE4
         h97YErWQ3jiiX0faqwm6eXVkXyzThJxxD3+6+3sjuMaZ9L9gkImw3jiq7JtUXvVPfdeP
         YXgA==
X-Received: by 10.112.198.100 with SMTP id jb4mr6514758lbc.97.1440141383821;
        Fri, 21 Aug 2015 00:16:23 -0700 (PDT)
Date: Fri, 21 Aug 2015 09:16:18 +0200
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] [pcb-rnd] parametric footprint: plcc() and qsop()
Message-Id: <20150821091618.749c6ea70d17fd113eab0e8e@gmail.com>
In-Reply-To: <alpine.DEB.2.00.1508210853120.6924@igor2priv>
References: <alpine DOT DEB DOT 2 DOT 00 DOT 1508191007150 DOT 6924 AT igor2priv>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1508202030290 DOT 6924 AT igor2priv>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1508210853120 DOT 6924 AT igor2priv>
X-Mailer: Sylpheed 3.5.0beta1 (GTK+ 2.24.25; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Reply-To: geda-user AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: geda-user AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

SS 0.65mm pin spacing
SO 1.277mm pin spacing
DIL 2.54mm pin spacing
QFN

On Fri, 21 Aug 2015 09:04:39 +0200 (CEST)
gedau AT igor2 DOT repo DOT hu wrote:

> Hi all,
> 
> finished the support for plcc() and qsop() - they are just frontends to 
> qf() and so() respectively. These were the last two missing generators on 
> my TODO list.
> 
> Please let me know if you know of any footprint family that could be or 
> should be generated. The requirements are:
> 
> - the footprint family is a series of footprints that can be generated 
> using the same code, with changing some base properties (e.g. number of 
> pins)
> 
> - dimensions and other properties can be calculated from the base 
> properties with reasonable formulas and conditional code; e.g. sot* is not 
> a good candidate for generation, as sot23 or sot89 can not be generated 
> from some common anestor by varying one or two parameters, but would need 
> a large table that translates package name to a pattern - easier to keep 
> those in static footprint files
> 
> - has a reasonable amount of existing variations; e.g. it is not worth 
> writing a generator for the dsub family because there are only a few of 
> them in common use (db9, db15, db25, and maybe db37).
> 
> - preferably a link to a datasheet that shows at least 3 members of the 
> family; if that's not possible, separate datasheets describing at least 3 
> members of the family
> 
> 
> Regards,
> 
> Igor2