ARINC-664 AFDX avionics databus support offered by DDC-I for Deos safety-critical real-time operating system

PHOENIX, 3 June 2012. Real-time software expert DDC-I in Phoenix is offering ARINC-664 driver and application support for the Deos safety-critical real-time operating system (RTOS). The ARINC-664 Avionics Full-Duplex Switched Ethernet (AFDX) databus was developed originally for the Airbus A380 jumbo jet.

The ARINC-664 driver complements DDC-I's existing AFDX solution, enabling Deos application programs to communicate with avionics systems in aircraft with either variant of the powerful communications interface, including those from Boeing, Airbus, and other airframe manufacturers, DDC-I officials say.

AFDX is an aircraft data network developed for real-time fly-by-wire avionics with the deterministic Ethernet interface standardized by ARINC Specification 664.

AFDX interfaces use a cascaded star network topology that can help reduce wire runs and lower aircraft weight. The dual-redundant network also enhances reliability and provides guaranteed bandwidth.

DDC-I's library, device driver process, and interfaces help software applications developers initialize, configure, read, and write data to avionics with interfaces to AFDX or ARINC 664 avionics databuses.

Deos was first certified to DO-178B Design Assurance Level A in 1998, says Bob Morris, president and chief executive officer of DDC-I. Deos has been used in hundreds of safety critical avionics applications on commercial and military aircraft.

The time- and space-partitioned RTOS has deterministic real-time response and employs slack scheduling to speed CPU use utilization than any other certifiable safety-critical COTS RTOS. Built for safety-critical applications, Deos was created using RTCA DO-178B, Level A processes.

For more information contact DDC-I online at

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