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Mail Archives: geda-user/2016/02/28/16:43:09

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Subject: Re: [geda-user] pcb import --> Symbol heavifier
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From: John Doty <jpd AT noqsi DOT com>
In-Reply-To: <CALT8Ef4jgS0DpVQQmOqiZDa0mKPP+25z8bfwB8hLfsUxoR7Gzw@mail.gmail.com>
Date: Sun, 28 Feb 2016 14:42:41 -0700
Message-Id: <376FEFE5-FC54-439D-A79F-2CA8D1DAA5A1@noqsi.com>
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On Feb 28, 2016, at 2:26 PM, Shashank Chintalagiri =
(shashank DOT chintalagiri AT gmail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:

> I have a (fairly unwieldy and heavy) framework in-place / in-the-works
> to do almost exactly that.

Yeah, it=92s hard. That=92s why I just have some simple scripts and =
tinker with them. Making it general seems harder than a special script =
for each case.

> It's far from being generally usable,
> though. It's fairly complicated to setup, makes a lot of assumptions
> and is overly susceptible to changes in vendor websites . The sources
> are all up on github[1]. If you're interested in it you can get in
> touch and I can try to help walk you through evaluating / setting it
> up.
>=20
> [1] https://github.com/chintal/tendril
>=20
> Chintalagiri Shashank
>=20
>=20
> On Mon, Feb 29, 2016 at 2:30 AM, John Doty <jpd AT noqsi DOT com> wrote:
>>=20
>> On Feb 28, 2016, at 1:12 PM, Nicklas Karlsson =
(nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:
>>=20
>>>>> A BOM generator which automatically heavify symbols with ordering
>>>>> information is what I ultimately want to write. Of course there =
have
>>>>> to be a database with values to pick from.
>>>>=20
>>>> Keith and I recently put something like this together for Altus =
Metrum.
>>>>=20
>>>> We now, by default, only set three attributes on a part: 'device',
>>>> 'footprint', and 'value'.  We have a "preferred parts" database =
that's
>>>> just a tab-separated-values flat file, and a couple awk scripts =
that
>>>> take the attributes for each part in a csv file, use the triplet =
above
>>>> to index into the database, and fill in any missing attributes.
>>>>=20
>>>> This means that for almost all parts, we only have one place to =
update
>>>> when we change manufacturer part data or vendor info for our =
'preferred
>>>> parts', yet we can override any attribute we need to on a =
per-design
>>>> basis. ...
>>>=20
>>> In particular there will be no need to update schematic then there =
are no changes to schematic.
>>>=20
>>> This is particularly useful if there is a need for distributor part =
number.
>>>=20
>>>=20
>>> Nicklas Karlsson
>>>=20
>>=20
>> What I do is to make a key from four attributes: device, value, spec, =
and footprint. Spec is something like =9350WVDC X7R=94 or =931% 1/10W=94. =
Together, these form a sufficiently unique key to identify a part.
>>=20
>> But it gets tricky then, because there are generally separate =
organizations involved with their own approaches. The folks who order =
parts will have a =93database=94 (really a spreadsheet) of approved =
parts. The board assembly house will have their own form they want. So, =
I have to customize the scripts frequently. One project has used three =
different layout shops and four different assembly shops for different =
phases.
>>=20
>> John Doty              Noqsi Aerospace, Ltd.
>> http://www.noqsi.com/
>> jpd AT noqsi DOT com
>>=20
>>=20
>=20
>=20

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



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