kicad-developers team mailing list archive

[Cirilo Bernardo <cirilo.bernardo@xxxxxxxxx>]

IPC2581B was made available for no cost; the IPC does this for a number
of standards in its care. If it were ISO it would be a different story. :)

It should be possible to support the standard but it would be good to get
an idea of how popular it is before spending time on it. Other standards
provide many of the features of IPC2581B but never came into widespread
use (IGES, STEP AP210, etc - though some large companies like Boeing
do use AP210). There is little point to implementing such a standard unless
it actually improves how you interact with manufacturers.

- Cirilo

On Sun, Sep 13, 2015 at 5:54 AM, timofonic timofonic <timofonic@xxxxxxxxx>
wrote:

> Hello.
>
> In order to not hijack the ODB++ discussion, here's this other message.
>
> Is IPC-2581 support feasible? They mention about being open. But I'm not
> sure how open, because isn't an ISO/IEC/ECMA/IEEE standard and that worries
> me.
>
> It seems most IPC standards require certification and documentation is
> sold, not free at all.
>
> Here's an old "bug" about adding IPC-2581 support: https
> <https://bugs.launchpad.net/kicad/+bug/594013>://
> <https://bugs.launchpad.net/kicad/+bug/594013>bugs.launchpad.net
> <https://bugs.launchpad.net/kicad/+bug/594013>/
> <https://bugs.launchpad.net/kicad/+bug/594013>kicad
> <https://bugs.launchpad.net/kicad/+bug/594013>/+bug/594013
> <https://bugs.launchpad.net/kicad/+bug/594013>
>
> This is the related IPC-2581 open source stuff I found:
>
> https://github.com/curtacircuitos/pcb-tools/commit/29deffcf77e963ae81aec9f8cbc61b029f3052d5
> https://github.com/Cobra-Kao/ipc2581_to_odb
>
> A Japanese guy said the following: " As a hobby, wrote my own IPC-2581
> parser which covers all (161?) tags. Used Perl script to automatically
> generate most part (about 7000 lines in C++) of parser code, from "formal"
> format definition in xsd (2249 lines)."
> http://www.naymz.com/takushiitadani2813467
>
> http://www.yatedo.fr/p/Takushi+Itadani/normal/1150312ae839c4d532298caf9921387c
>
> Some subtle reference to IPC-2581
>
> It's free to join the consortium, but it requires a corporate entity it
> seems: http://www.ipc2581.com/index.php/join-the-consortia
>
> There's Associate Membership too:
> http://www.ipc2581.com/index.php/associate-membership
>
> Here are free viewers: http://
> <http://www.ipc2581.com/index.php/ipc-2581-files>www.ipc2581.com
> <http://www.ipc2581.com/index.php/ipc-2581-files>/
> <http://www.ipc2581.com/index.php/ipc-2581-files>index.php
> <http://www.ipc2581.com/index.php/ipc-2581-files>/ipc-2581-files
> <http://www.ipc2581.com/index.php/ipc-2581-files>
>
> Some general information, press releases and such
>
>
> http://www.eevblog.com/2012/09/13/eevblog-349-smcba-lecture-ipc-2581-open-standards-for-pcb-design-data/
>
> An user said the following about IPC-2581: "IPC-2581 is similar to the
> Linux OS as it's an open source code with a consortium developing it.
> Hopefully there will only be one flavor."
> http://www.pcblibraries.com/forum/ipc2581_topic886.html
>
> http://www.multi-circuit-boards.eu/en/support/pcb-data/ipc-2581.html
>
> http://web.archive.org/web/20140806104621/http://www.cadence.com/Community/blogs/ii/archive/2012/10/02/pcb-west-update-how-ipc-2581-data-transfer-standard-is-moving-forward.aspx
>
> Academic paper describing stuff to add to PCBNEW, including IPC-2581:
> BIDULOCK, Brian. PCBNEW Wishlists, Blueprints, Design and Implementation
> Notes. 2010.
> http://www.openss7.org/docs/NOTES.pdf
>
> http://www.cadence.com/products/pcb/pages/ipc.aspx
>
>
> http://www.odb-sa.com/community/topic/article-mentor-to-support-ipc-2581-to-printed-circuit-design-fab-magazine-on/
>
>
> http://pcdandf.com/pcdesign/index.php/news-itemid-fix/7627-mentor-to-support-ipc-2581
>
> http://www.eetimes.com/author.asp?section_id=36&doc_id=1319781
>
> http://www.pcb-investigator.com/en/forum/ipc2581-better-odb
>
> http://signal-integrity.blogs.keysight.com/2012/o-is-for/
>
> http://techdocs.altium.com/display/ADOH/IPC-2581+Support (ironically, you
> need to BUY the plugin)
> On Sep 12, 2015 6:11 PM, "Tomasz Wlostowski" <tomasz.wlostowski@xxxxxxx>
> wrote:
>
> On 12.09.2015 18:04, Chris Pavlina wrote:
> > Not GPL-compatible because the restriction would apply to anyone making
> > a derivative of KiCad as well. The only way I can see to do this is a
> > clean-room reverse engineering, which does not appear to be feasible.
>
> Use plugins. The ODB++/IPC-2581 ones could be kept outside mainline
> Kicad if we would ensure they can be easily installed by a non-programmer.
>
> - my 5 cents,
> Tom
>
>
>
> >
> > On Sep 10, 2015 12:48 PM, "Mark Roszko" <mark.roszko@xxxxxxxxx
> > <mailto:mark.roszko@xxxxxxxxx>> wrote:
> >
> >     Nope, you don't have to advertise for Mentor Graphics
> >
> >     Here are the terms:
> >
> >     4. PROMOTION.
> >
> >     Participant agrees to promote the integration between the ODB++
> Format
> >     and the Participant Products by: (i) joining the ODB++ Solutions
> >     Alliance as a “solutions development partnering” member, via the
> ODB++
> >     Website, including providing a quote about Participant’s ODB++ Format
> >     implementation for use in Mentor Graphics’ promotional materials and
> >     on the ODB++ Website; (ii) allowing Mentor Graphics to use
> >     Participant’s logo in Mentor Graphics promotional materials and on
> the
> >     ODB++ Website; (iii) including a brief factual statement on the ODB++
> >     Format implementation in Participant’s promotional materials and a
> >     link from Participant’s website to the ODB++ Website; (iv) making a
> >     visible acknowledgement in the Participant’s Products (user-interface
> >     and documentation) of the support received from Mentor Graphics under
> >     this Agreement for the implementation of the ODB++ Format; and (v)
> >     agreeing to the publication by Mentor Graphics of the existence of
> >     Participant’s membership in the ODB++ Solutions Alliance.
> >
> >
> >
> >
> >     I highly doubt Altium and Cadence (both large EDA developers) would
> be
> >     supporting ODB++ if they have to advertise their competitor. Its just
> >     really slapping the logo on the supported products page for ODB++ and
> >     some marketing FUD for ODB++ because they really want it to take off
> >     for some reason.
> >     http://www.odb-sa.com/partners/
> >
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> >
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