X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-TCPREMOTEIP: 63.119.35.194 X-Authenticated-UID: jpd AT noqsi DOT com Content-Type: multipart/signed; boundary="Apple-Mail=_6A15430D-2E4B-4AC8-A0B1-FC10E13E60A2"; protocol="application/pgp-signature"; micalg=pgp-sha512 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: [geda-user] Primitive electrical types [WAS: Re: first attempt at bus support in gnetlist for pcb] X-Pgp-Agent: GPGMail 2.5.2 From: John Doty In-Reply-To: Date: Sat, 9 Jan 2016 14:58:24 -0500 Message-Id: References:

To: geda-user AT delorie DOT com X-Mailer: Apple Mail (2.1878.6) 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 --Apple-Mail=_6A15430D-2E4B-4AC8-A0B1-FC10E13E60A2 Content-Type: multipart/alternative; boundary="Apple-Mail=_5BF1E7D7-7B5F-45AD-8565-77F6F88A1CD4" --Apple-Mail=_5BF1E7D7-7B5F-45AD-8565-77F6F88A1CD4 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 On Jan 9, 2016, at 2:27 PM, Britton Kerin (britton DOT kerin AT gmail DOT com) [via = geda-user AT delorie DOT com] wrote: >=20 > Did you mean "attributes are used in a similar way already"? >=20 > Yes, and the details about how to use them are scattered in FAQs and = other places. Hierarchy is hard to figure out. John and DJ are the = only people I know who really seem to understand how the slotting and = pin sequence attributes work, I think most people probably just avoid = them out of fear. >=20 Oh, it=92s worse than that. Who knows what the device attribute=92s = significance is? We have no consistent convention, but some backends use = it. When do you actually need pinlabel? When do you need refdes? Pintype is = specialized to digital design with a MSI of a single logic family. = Gsymcheck complains about missing attributes you don=92t necessarily = need (lots of things don=92t have footprints), and also about = flow-specific attributes. It=92s pretty sloppy, but geda-gaf still = captures designs effectively. John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ jpd AT noqsi DOT com --Apple-Mail=_5BF1E7D7-7B5F-45AD-8565-77F6F88A1CD4 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252

On Jan 9, 2016, at 2:27 PM, Britton = Kerin (britton DOT kerin AT gmail DOT com) = [via geda-user AT delorie DOT com] = <geda-user AT delorie DOT com>= wrote:

Did you mean "attributes are used in = a similar way already"?

Yes, and the details about how to use = them are scattered in FAQs and other places. Hierarchy is hard to = figure out. John and DJ are the only people I know who really seem = to understand how the slotting and pin sequence attributes work, I think = most people probably just avoid them out of fear.

Oh, = it=92s worse than that. Who knows what the device attribute=92s = significance is? We have no consistent convention, but some backends use = it.

When do you actually need pinlabel? When do you = need refdes? Pintype is specialized to digital design with a MSI of a = single logic family. Gsymcheck complains about missing attributes you = don=92t necessarily need (lots of things don=92t have footprints), and = also about flow-specific attributes. It=92s pretty sloppy, but geda-gaf = still captures designs effectively.

John = Doty = Noqsi = Aerospace, Ltd.

http://www.noqsi.com/

jpd AT noqsi DOT com

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