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LynuxWorks Updates Safety-Critical RTOS

LynxOS-178 now offers networking stack that allows use of TCP/IP in safety-critical roles

By P J Connolly

December 20, 2007 — Developers of safety-critical systems such as those in aircraft that wanted to use TCP/IP and UDP networking to communicate between devices have sometimes been stymied by the lack of protocol stacks that were certified for use in such a role. But LynuxWorks may have changed all of that with the latest update to its LynxOS-178 real-time operating system.

LynxOS-178 release 2.3, which became available earlier this month, features an overhauled Lynx Certifiable Stack that company calls the “richest…partition-aware ARINC 664-capable DO-178B level A…network stack on the market.” In English, that means that first, it adheres to the aviation industry’s specification for using deterministic Ethernet as an avionics databus (ARINC 664), and second, that it meets the most stringent guidelines for airworthiness, in situations where failure would be catastrophic (the A level of DO-178).

The company also noted that the new stack would allow developers to use the profiling and debugging tools of its Eclipse-based Luminosity IDE, adding that not only could developers use deterministic networking in safety-critical systems including aerospace, military and medical deployments, but that the reliability of these systems could be tested in deployment as well as development.

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Many RTOS flavors serve embedded
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