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The term '''gEDA''' refers to two things:
# A set of software applications ([[CAD]] tools) used for electronic design released under the [[GPL]]. As such, gEDA is an ECAD (electronic CAD) or EDA ([[electronic design automation]]) application suite. gEDA is mostly oriented towards [[printed circuit board]] design (as opposed to [[integrated circuit]] design). The gEDA applications are often referred to collectively as "the gEDA Suite".
# The collaborative of [[free software]]/[[open-source]] developers who work to develop and maintain the gEDA toolkit. The developers communicate via gEDA mailing lists, and participate in the yearly "[[Google Summer of Code]]" event as a single project. This collaborative is often referred to as "the gEDA Project".
The word "gEDA" is a conjunction of "[[GPL]]" and "EDA". The names of some of the individual tools in the gEDA Suite are prefixed with the letter "g" to emphasize that they are released under the [[GNU General Public License]].
==History==
The gEDA project was started by Ales Hvezda in an effort to remedy the lack of [[free software]] EDA tools for [[Linux]]/[[UNIX]].<ref>{{ cite journal | first = Richard| last = Goering | journal = EE Times | date = 2004-12-13 | url = http://www.eetimes.com/news/design/showArticle.jhtml;jsessionid=HMTSLABZRWE4OQSNDLPCKHSCJUNN2JVN?articleID=55301354 | title = Do-it-yourselfer's EDA project wins open-source fans | accessdate = 2008-11-25 }}</ref> The first software was released on 1 April 1998, and included a schematic capture program and a netlister.<ref>{{ cite journal | first = Richard| last = Goering | journal = EE Times | url = http://www.eetimes.com/story/OEG19981125S0022 | title = Open-source movements get behind GNU EDA tools | date = 1998-11-25 | accessdate = 2008-11-30 }}</ref> At that time, the [http://geda.seul.org gEDA Project website] and [http://geda.seul.org/mailinglist/index.html mailing lists] were also set up.
Originally, the project planned to also write a PCB layout program. However, an existing open-source layout program, "PCB", was soon discovered by the project. Thereafter, the ability to target netlists to PCB was quickly built into the gEDA Project's netlister, and plans to write a new layout program from scratch were scrapped. Meanwhile, developers working on PCB became affiliates of the gEDA Project.
Meanwhile, other open-source EDA programs were created at about the same time. The authors of those programs became affiliated with the gEDA website and mailing lists, and the collaborative gEDA Project was born.
At present, the gEDA Project remains a federation of software tools developed by different (but sometimes overlapping) programmers. The thread which holds the project together is the shared vision of creating a powerful, community-based, open-source EDA toolkit.
==Detailed Description==
Loosely speaking, the term "gEDA Suite" refers to all [[free software]] projects and applications that have voluntarily associated themselves with the gEDA Project via the geda-dev/geda-user mailing lists. These include:
* gEDA/gaf - gschem and friends (the original project)
* PCB - PCB layout program
* Gerbv - [[Gerber file]] viewer
* ngspice - a port of Berkeley [[SPICE]]
* [[GnuCap]] - A modern [[electronic circuit simulation]] program
* gspiceui - A [[GUI]] front end for ngspice/GnuCap
* gwave - An analog [[waveform viewer]]
* Icarus Verilog - A [[Verilog]] simulator
* GTKWave - A digital [[waveform viewer]]
* wcalc - [[Transmission line]] and electromagnetic structure analysis
Within the gEDA Suite, gEDA/gaf ("gaf" stands for "gschem and friends") is the smaller subset of tools grouped together under the gEDA name and maintained directly by the gEDA project's founders. GEDA/gaf includes:
* gschem - A [[schematic capture]] program
* gnetlist - A [[netlist]] generation program
* gsymcheck - A syntax checker for schematic symbols
* gattrib - A [[spreadsheet]] program for editing symbol attributes on a schematic.
* libgeda - Libraries for gschem, gnetlist, and gsymcheck
* gsch2pcb - Forward annotation from schematic to layout using pcb
* Assorted utility programs
==Platforms==
===Linux===
Because one of the gEDA Project's longstanding goals is to provide a suite of [[electronic design automation|EDA]] applications for [[Linux]], all applications in the gEDA Suite compile and run on Linux. Besides building the programs from source, binary executables for all programs in the gEDA Suite are available from popular package archives; the programs may be installed on many common [[linux distribution|Linux distributions]] using [[package management]] tools such as [[apt-get]] and [[Yellowdog_Updater,_Modified|yum]].
===Unix===
All gEDA applications will also compile and run on other free [[Unix-like]] operating systems, such as [[FreeBSD]] and [[NetBSD]]. Some of these distributions also support installation of pre-packaged binaries using package management utilities.
===Mac OS X===
Most gEDA applications also install and run successfully on [[Mac OS X]], typically using the [[Fink|Fink package manager]]. Since few commercial EDA tools run on the Mac, this feature has made gEDA a popular electronic design package amongst Mac users.
===Microsoft Windows===
Because the programs in the gEDA Suite target [[POSIX]] compliant operating systems, [[Microsoft Windows]] support is currently not a project goal. Nonetheless, some programs in the gEDA Suite have built-in hooks for Windows support, and those programs will build and run under Windows. However, binary executables for most of the gEDA Suite are not distributed by the gEDA Project.
==Community==
An important feature of the gEDA Project is the strong user community it has created.<!--<ref>{{ cite conference | title = Creating Open Source Electronic Hardware with Open Source Software | booktitle = O'Reilly OSCON Open Source Convention | year = 2008 | url = http://en.oreilly.com/oscon2008/public/schedule/detail/2777 | last = Anderson | first = Tom | accessdate = 2008-11-25 }}</ref> -->The gEDA mailing lists have several hundred subscribers, and a large percentage of those subscribers are deeply knowledgeable electronics experts. Accordingly, the gEDA mailing lists have become a focal point not only for information related to the gEDA applications, but also for exchange of general electronic design information.
As a consequence of the project's openness, schematic symbols, footprints, and utility scripts are freely created and shared amongst the members of the gEDA community at a spin-off website, [http://www.gedasymbols.org www.gedasymbols.org].
== References ==
{{reflist|2}}
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==See also==
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* [[Comparison of EDA Software]]
== External links ==
* [http://www.gpleda.org/ gEDA Project Homepage]
* [http://www.linuxjournal.com/article/8438 Circuit Design on Your Linux Box Using gEDA] — Overview article in the [http://www.linuxjournal.com/ Linux Journal]
* [http://geda.seul.org/wiki/geda:gsch2pcb_tutorial gsch2pcb tutorial] — How to go from schematic to pcb layout
* [http://www.linuxfocus.org/English/December2004/article355.shtml Using gEDA] — Another tutorial describing how to use the gEDA Toolset.
[[Category:Free electronic design automation software]]
[[Category:Linux Electronic Design Automation clients]]
[[Category:Open hardware]]
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