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Embedded Linux/Microcontroller Project

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The Embedded Linux/Microcontroller project is a port of Linux to systems without a Memory Management Unit (MMU).

Pronounced "you-see-linux", the name uClinux comes from combining the greek letter "mu" and the english capital "C". "Mu" stands for "micro", and the "C" is for "controller". uClinux first ported to the Motorola MC68328: DragonBall Integrated Microprocessor. The first target system to successfully boot is the PalmPilot using a TRG SuperPilot Board with a custom boot-loader created specifically for our Linux/PalmPilot port.


May 2016
The Buildroot project has recently accepted Coldfire patches into its git repository adding support for the MCF5208 emulator.

March 2016
The new uClinux-dev elf2flt Git repository has been updated to support producing working ARM flat binaries. Tested with busybox on Kinetis K70 Microcontroller.

February 2016
The February 8, 2015 uClinux-dist release has been posted by Greg. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20160208.tar.bz2
Also available on SourceForge here:https://sourceforge.net/projects/uclinux/download

December 2015
The CVS respository on cvs.uclinux.org has been dead for a number of years now. Efforts by the team to move an archived copy of the elf2flt repository over to GitHub is currently underway.

August 2015
The August 8, 2015 uClinux-dist release has been posted by Greg. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20150808.tar.bz2
Also available on SourceForge here:https://sourceforge.net/projects/uclinux/download

August 2014

uClinux in a test bed Many uClinux users and contributors have attened the annual Ottawa Linux Symposium. The first uClinux presentation was made at the very first conference back in the summer of 1999. The organizers of the Linux Sysmposium are asking the community for support via an INDIEGOGO crowd funding campaign.
Please consider supporting this cause. If you need more reasons to do so .. please read the following blogs by Matt Domsch and Jon maddog Hall on why you should consider supporting OLS.

July 2014

uClinux in a test bed A uClinux user 'hmahadik' posted a picture on reddit for his automated uClinux test environment. Featuring Freescale MCF53281 and Analog Devices ADSP-BF548 boards from Arcturus Networks. www.arcturusnetworks.com/products/

May 2014
The current uClinux-dist release is dated May 4, 2014. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20140504.tar.bz2

October 2013
The current uClinux-dist release is dated October 24, 2013. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20131024.tar.bz2

October 2012
The current uClinux-dist release is dated October 24, 2012. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20121024.tar.bz2

June 2012
The current uClinux-dist release is dated June 20, 2012. Here is a quick links to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20120620.tar.bz2

April 2012
The current uClinux-dist release is dated April 1, 2012. Here is a quick link to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20120401.tar.bz2

March 2012
Nice video of a Kinetis module running uClinux. http://www.youtube.com/watch?v=UZjJrLG9CeA. Both Arcturus Networks and EmCraft have system on module solutions that make use of Kinetis parts. If running without external memory buss MQX may be best .. but having uClinux running on another platform is always kewl.

March 2012
The uClinux developers mailing list archives have been restored and are now available at http://mailman.uclinux.org/pipermail/uclinux-dev/.

March 2012
The current uClinux-dist release is dated March 15, 2012. Here is a quick links to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20120315.tar.bz2
The uClinux-dist-20120315.tar.bz2 file is also available for download from our download page on SourceForge https://sourceforge.net/projects/uclinux/download

February 2012

uClinux in space Those looking for a comercial off the shelf multiple audio codec module design should look at the Arcturus uCBF548 soDIMM featuring the ADSP-BF548 mmu-less processor. More information on this product should go to the Arcturus Networks web page: www.arcturusnetworks.com/products/ucbf54x/

December 2011 - uClinux product Image(s) of the Year

uClinux product/image of the Year 2011 This image is from the Jet Propultion Lab's ENose project. Image credit: NASA/JPL

This product used a MCF5282 V2 ColdFire processor on an Arcturus uC5282 module running uClinux as its Embedded Linux data analysis computer.

November 2011
The uClinux developers mailing list has been taken down due to an attack. Work on bringing up an new mail server is underway and is expected to be online by the first week of December. Sorry for the inconvenience.

November 2011

The Designing With Freescale - DWF event in Toronto show cased an Arcturus uC53281 SoM using a mDNS enabled Coldfire MCF53281 that enabled remote device discovery including remote command and control. http://youtu.be/9iAmAqQE_ys

November 2011
The current uClinux-dist release is dated November 11, 2011. Here is a quick links to the tar.bz2 package.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20111111.tar.bz2
The uClinux-dist-20111111.tar.bz2 file is also available for download from our download page on SourceForge https://sourceforge.net/projects/uclinux/download

July 2010
The uClinux Project founders and principal maintainers are proud to announce the uClinux project will join the Open Innovation Network Patent Pool. If you use uClinux, this means you will be safer than ever from attack by Patent Trolls. -- D. Jeff Dionne et al.

June 2010
The Freescale Technology Forum held a few session again this year that included support for its ColdFire cores featuring the use of uClinux as its Linux OS. The following link shows a video shot at the event demoing a ColdFire MCF53017 processor running uClinux and CMU's Pocket Sphinx http://www.youtube.com/watch?v=Ahw-vxRaQMA

January 1010
A bFLT / elf2flt page has been added to the www.uclinux.org site. Right now it acts as a simple jump point to links such as the CVS respository, the wiki page hosted by blackfin.uclinux.org and a link to Craig Peacock's piece on the BFLT Binary Flat Format.

September 2009
ST has published an application note on the the use of uClinux with its STM32F10x high-density devices.AN3012 Application note.

September 2009

uClinux in space After six months in space the JPLabs ENose project left the International Space Station. This project used a uClinux powered uCdimm (soDIMM form factor system on module) from Arcturus Networks Inc. as its data analysis computer. This module featuring an Freescale Semiconductor ColdFire processor. For more information on the JPL Electronic Nose project can be found at http://enose.jpl.nasa.gov/
The ENose flew for six months on the International Space Station monitoring the air the astronauts breathed. Image credit: NASA/JPL
A complete list of the ENose project partners can be found at the JPL web page http://enose.jpl.nasa.gov/relatedlinks.html

July 2009
As a reminder to all. Greg Ungerer releases regular patch files against the most recent stable release. These patch files can be found both in the download page on SourceForge http://sourceforge.net/projects/uclinux/download as well as at the following link: http://www.uclinux.org/pub/uClinux/dist/patches/

June 2009
The current uClinux-dist release is dated June 18, 2009. Here is a quick links to the tar.gz and tar.bz2 packages. Please when downloading pick either the tar.gz or the tar.bz2 version and not both as they are the same file.

  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20090618.tar.gz
  • http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20090618.tar.bz2
The uClinux-dist-20090618.tar.bz2 file is also available for download from our download page on SourceForge http://sourceforge.net/projects/uclinux/download

Link to old new items

This Open Source Project Sponsored By:

Arcturus Networks Inc.

Accelerated Concepts, Inc.

ANI Technologies Corp.


Copyright © 1998 - 2002 D. Jeff Dionne and Michael Durrant Copyright © 2002 - 2018 Arcturus Networks Inc.
μClinux, uCsimm, μCsimm, uCdimm, μCdimm, Arcturus and the logos versions are Trademarks of Arcturus Networks Inc.