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The architecture of integrated modular avionics (IMA) systems is characterized by high hardware modularity, good system application flexibility, and high functional reliability. It has gradually replaced discrete and combined avionics system architectures, becoming the main architecture for current avionics system design. The VxWorks653 operating system meets the requirements of the ARINC653 standard and achieves a high degree of integration and reliable operation of multiple functions on the same hardware platform through functional partitioning, satisfying the high integration and high reliability requirements of avionics systems, making it suitable for the design of integrated modular avionics systems. Based on the working principles of VxWorks653, this paper analyzes the hardware resource requirements and functional partition design characteristics of VxWorks653 through experimental testing, summarizes the design guidelines for applying VxWorks653 in integrated modular avionics systems, and finally provides an application example of VxWorks653 in an integrated modular avionics system to offer a reference for engineering application design.

Keywords: IMA; VxWorks653; Avionics