RTEMS Real Time Operating System

The Real-Time Executive for Multiprocessor Systems or RTEMS is a open source fully featured Real Time Operating System or RTOS that supports a variety of open standard application programming interfaces (API) and interface standards such as POSIX and BSD sockets. It is used in space flight, medical, networking and many more embedded devices across a wide range of processor architectures including ARM, PowerPC, Intel, Blackfin, MIPS, Microblaze and more. You can obtain commercial support or support via the active community. Major decisions about RTEMS are made by the core developers in concert with the user community, guided by the Mission Statement. We encourage everyone to contribute changes and help testing RTEMS. We provide access to our development sources via a Git Repository (see these Instructions for details). We strive to provide regular, high quality releases, which we want to work well on a wide range of embedded targets using cross development from a variety of hosts including GNU/Linux, Mingw, MS-Windows, FreeBSD, Cygwin, and Solaris.

Google Summer of Code 2013

The RTEMS Project plans to apply as a participating organization in the Google Summer of Code 2013. We have been busy in the off-season getting ready for potential students and await your proposals. Visit the updated Open Projects and RTEMS Summer of Code pages in the Wiki and dig in.

New GSOC students looking at RTEMS for the first time please head to the RTEMS Summer Of Code page first.

This year we have a new CentOS 6.3 Virtual Machine image at sourceforge.net. See the Virtual Machines for RTEMS Development page for more details. It includes the RTEMS Development Environment for 4.11 using a clone of the RTEMS git repository. This is a low effort way to get started with RTEMS. The VMs were created and tested using VirtualBox. The VM image includes SPARC and i386 target support. Simulators are included for the SPARC/sis BSP and i386/pc386. Qemu is also installed and configured to support testing networked applications with the pc386 BSP. Students without a dedicated Linux computer are encouraged to use this.

We have a Google Docs Proposal Template we encourage you to follow. You should also be aware that we do NOT want you to fail so we require all students to do a simple hello world project to prove they can do something basic with RTEMS. Don't worry! We are friendly and will help as much as we can. Visit us at #rtems at freenode.net or join the rtems-users and/or rtems-devel mailing lists.

Releases and Active Development

Mainline: will become 4.11 (obtain from CVS)
4.10 Release Branch: RTEMS 4.10 (CVS tag rtems-4-10-branch) (latest is 4.10.2)
4.9 Release Branch: RTEMS 4.9 (CVS tag rtems-4-9-branch) (latest is 4.9.6)

Legacy Branches and Support

OAR recognizes that a project using RTEMS may decide to use a particular release branch and not upgrade to a newer branch that includes new features. The RTEMS Project follows other free software projects and only supports two active branches and the development head with support declining on the older of the two branches. As a support service, OAR offers legacy support with bug fixes for closed branches.

4.8 Release Branch: The current legacy support release is 4.8.4 and addresses over 20 issues which were in the last public release of 4.8.2.
4.7 Release Branch: The current legacy support release is 4.7.5 and addresses over 35 issues which were in the last public release of the last public release of 4.7.3.
4.6 Release Branch: The current legacy support release is 4.6.9 and addresses over 50 issues which were in the last public release of the last public release of 4.6.9.

RTEMS News

April 08, 2013

RTEMS Accepted in GSOC 2013

The RTEMS Project has been accepted as a participating organization in the Google Summer of Code 2013. We have been busy in the off-season getting ready for potential students. Visit the updated...

February 15, 2013

Google Summer of Code 2013 and RTEMS

I (Joel) gave two brief presentations today at the University of Tennessee at Chattanooga on RTEMS and Google Summer of Code 2013. I shared my experiences in a blog post. PDFs are available as part...

November 12, 2012

RTEMS Selected as Google Code In 2012 Organization

Google has announced the participating organizations for the 2012 edition of Google Code In. This is a program
for high school students and you should pitch this to your local high...

July 23, 2012

RTEMS Selected for ESA Summer of Code In Space 2012

The RTEMS Project is proud to announce that we have been selected for a second year to be a participating organization in the European Space Agency's Summer of Code in Space. Julien Delange posted this invitation to the RTEMS mailing lists. A list of projects is available at...

April 30, 2012

RTEMS Featured in May 2012 Edition of French GNU/Linux Magazine

Julien Delange has written an article about real-time operating systems programming which is featured in issue number 149 (index and...

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