Operating System Embedded: Difference between revisions

Revision as of 09:24, 24 March 2011

Revision as of 14:17, 3 April 2011

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The '''Operating System Embedded''' (mostly known under the [[acronym]] '''Enea OSE''') is a [[real-time operating system|real-time]] [[embedded operating system]] created by the [[Sweden|Swedish]] information technology company [[ENEA AB|ENEA]]. [[Bengt Eliasson]], who at the time was a consultant from ENEA with an assignment at [[Ericsson]], wrote the basic parts of the [[kernel (computer science)|kernel]]. The early version for the [[Zilog Z80]] processor was named OS80.

Enea OSE is one of the most widely used [[RTOS]] in the world. According to mobile analyst firm, VisionMobile, OSE has been deployed in over 1.75 billion mobile handsets, as of the end of June 2010 .<ref>[http://www.100millionclub.com]</ref>. Enea OSE is shipped in hundreds of millions of mobile phones each year and over half of the world's 3G basestations.<ref>[http://www.enea.com/33494.epibrw Leader in Communications Software]</ref>.

== Enea OSE Architecture and Capabilities ==

OSE uses [[Event (computing)|events]] (named ''[[Signal programming|signals]]'' due to ENEA's Telecomms background) in the form of messages passed to and from [[computer process|processes]] in the system. Messages are stored in a [[Queue (data structure)|queue]] attached to each process. A 'link handler' mechanism allows signals to be passed between processes on separate machines, over a variety of transports. The OSE signalling mechanism formed the basis of an [[Open source|open-source]] inter-process kernel design project called [[LINX (IPC)| LINX]] .

* [[Fault tolerant]], [[distributed architecture]]

* Modular, layered [[microkernel]] architecture

* [[Event-driven]], deterministic real-time response

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* A lightweight kernel internal IPC mechanism called kernel events used to perform asynchronous, cross core transactions in order to avoid the use of fine-granular locking designs, which has a detrimental effect on performance.

VDC Research Group selected Enea OSE Multicore Edition Best of Show at ESC Boston 2009 <ref>[http://www.embedded.com/esc/220101008 Embeddie Winners Announced] </ref>

The Enea OSE family of RTOS features 3 OSs: ''OSE'' for [[ARM architecture|ARM processors]], [[PowerPC]] and [[MIPS architecture|MIPS]], ''OSE_ck'' for various DSP's, and ''OSE Epsilon'' for minimal devices (written 100% in assembly).

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{{Real-time operating systems}}

{{operating-system-stub}}

[[Category:Real-time operating systems]]