The LynxOS®-178 RTOS is the first and only hard real-time DO-178B level A operating system to offer the interoperability benefits of POSIX® with support for the ARINC 653 APplication EXecutive (APEX).

The LynxOS-178 RTOS is also the first and only time- and space-partitioned, FAA-accepted Reusable Software Component (RSC). It is the only COTS solution supporting both Intel® Pentium® and and PowerPC® platforms.

LynxOS-178 RTOS is based on open standards. This real-time operating system is designed specifically to fulfill the stringent needs of multithread and multiprocess applications in safety-critical real-time systems.

1. >>RTOS: LynxOS-178 real-time operating system
2. RTOS for industry standards: DO-178B, POSIX and ARINC 653
3. Secure RTOS partitions
4. RTOS architecture
5. Configuration and RTOS kernel image
6. FAA-accepted Reusable Software Component (RSC) for DO-178B

• LynxOS-178 RTOS PDF brochure (142 kB)
• ARINC and POSIX for Safety-Critical Applications PDF brochure (1.04 MB)

LynxOS-178 RTOS system:

Galileo Satellite Navigation System

LynxOS-178 RTOS:

• FAA Reusable Software Components (RSC)
• Military and Aerospace Systems
• Request Product Updates
• LynuxWorks RTOS Home
• How a Partitioning Operating System Works
• DO-178B RTOS Training
• Board Support
• Hardware Support Guide
• Luminosity Eclipse-based IDE
• Order the LynxOS-178 RTOS
• White Papers
• Embedded Success Stories

This RTOS provides security through Virtual Machine (VM) brick-wall partitions which make it impossible for system events in one partition of the RTOS to interfere with events in another. It's as if each partition were its own separate computer.

RTOS for DO-178B certification of secure multithread, multiprocess applications

LynxOS-178 RTOS provides previously certified software and artifacts in order to fully satisfy, right out of the box, the DO-178B level A requirement that every line of software in the system be verified with Modified Condition/Decision Coverage.

The DO-178B certification process is so time- and labor-intensive that vendors may experience an output of just 125 lines of code per man-month.

Without the LynxOS-178 RTOS, testing of complex code could quickly add up to millions of dollars!

RTOS with a secure system tradition

At the core of the LynxOS-178 real-time operating system is LynxOS, a mature UNIX®-style operating system (born 1988) that was designed from the start for hard real-time determinism. LynxOS and LynxOS-178 have been deployed in millions of safety-critical applications worldwide, including multiple military and aerospace systems certified to DO-178B, up to level A.

With the LynxOS-178 RTOS, LynuxWorks™ leads the real-time operating system industry yet again, and the LynxOS-178 RTOS ushers in a new era of security and productivity for safety-critical system development.

on the LynxOS-178 RTOS tour:
RTOS for industry standards: DO-178B, POSIX and ARINC 653