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=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:content-type;
	bh=jMXEShMq8p6VpEmHKbPM83R+0QJhGWWSKU2ew0TNtts=;
	b=fB4Gx/dIiCV1LpElJIc4vKJP1gsLODwPgLc7Y73bNz6gxX3JcWiGa8e70slNvwHpa4
	6CY2kdivbxsOhjZuW/fQRR6/zs3ACMjWe79ZFDMuWNEl4BBVGwN7eJaUUXKAyXSK4v/Q
	zQ61xRA1g1FvIvGNbTmGnVpWnwE1n1XzilP/fGQZStrEK4yc5Hy2ogl50czajM24QmP1
	+ktjW9XTV369B/g4yKvltlNQsqfL2s0B5r/DzcFQboS/PAvCdH1W0FYAgaFVQdcru2ye
	05OiCoHiX2wcKiyBO73/3swy/eu5jgEl4FFlzKBShjNbepDJYg5gzJ9IenZ3zXsw3A0V
	AZDA==
MIME-Version:	1.0
X-Received:	by 10.112.40.168 with SMTP id y8mr9515906lbk.67.1451415814003;
	Tue, 29 Dec 2015 11:03:34 -0800 (PST)
In-Reply-To:	<5682D724.1010705@ecosensory.com>
References:	<CAJXU7q_3XwthnN_8mp7B+-ShHeK+=7J=54ZavKBUG3S3bSKp2A AT mail DOT gmail DOT com>
	<CANEvwqiM7CKG+WpDRpG4L=HsmSEZ32=CBDyUhuk3ks-SNedL2Q AT mail DOT gmail DOT com>
	<43CC8F96-6452-40FA-9DFB-E0983721C19C AT noqsi DOT com>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1512290406210 DOT 9035 AT igor2priv>
	<20151229094603 DOT 782092b57563336883546bfd AT gmail DOT com>
	<CAM2RGhQ363RydhBJKMnNX5sLOkD1K4qVwb-PPwov3MT3D6MfdQ AT mail DOT gmail DOT com>
	<CAM4zO3rAgR79y6CJQe4AyXBSmsY+CMTyDkpUGKhiB0Ns+rhh0g AT mail DOT gmail DOT com>
	<5682D724 DOT 1010705 AT ecosensory DOT com>
Date:	Tue, 29 Dec 2015 14:03:33 -0500
Message-ID:	<CAM2RGhR7j+tGorb7_eeFb0C4UUaV1FOZ4ruRXvdSkQ9B-trhaA@mail.gmail.com>
Subject:	Re: [geda-user] Project leadership (design error in the core of gschem)
From:	"Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	gEDA users mailing list <geda-user AT delorie DOT com>
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

On Tue, Dec 29, 2015 at 1:55 PM, John Griessen <john AT ecosensory DOT com> wrote:
> On 12/29/2015 11:29 AM, Ozzy Lash (ozzy DOT lash AT gmail DOT com) [via
> geda-user AT delorie DOT com] wrote:
>>
>> In places were slotting could be cool we don't use it right in the
>> standard symbol library. Take the symbols for the larger xilinx chips.
>
>
> Slotting is intended for chip ins and outs that cannot change, so FPGAs are
> not a good example.
> FPGAs are very regprogrammable as far as which pin/pad/ball does a
> particular internal function.
> They don't need slots -- at least not classical slots.

That is why I picked them. They fly right into the faulty architecture
of our slotting as it is now.

> What would be good for FPGAs is a quick/easy way to change pin numbers of a
> symbol,
> and simultaneously  update the netlist to match that same function without
> having to undo gschem nets
> that are already connected to that place.  (A place that just got a pin swap
> or several done on it)

There is metadata that is in the schematic which does not make it past
gnetlist and into pcb or what ever else. This is just one of the
things that gets lost in translation.

-- 
Home
http://evanfoss.googlepages.com/
Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2
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=Ta4p
-----END PGP PUBLIC KEY BLOCK-----

- Raw text -