DEVELOPMENT OF INTEGRATED MODULAR AVIONICS APPLICATIONS BASED ON SIMULINK AND XTRATUM

摘要

This paper presents an integral approach for designingavionics applications that meets the requirements for softwaredevelopment and execution of this application domain. Softwaredesign follows the Model-Based design process and is performedin Simulink. This approach allows easy and quick testbenchdevelopment and helps satisfying DO-178B requirements throughthe use of proper tools. The software execution platform is basedon XtratuM, a minimal bare-metal hypervisor designed in ourresearch group. XtratuM provides support for IMA-SP (IntegratedModular Avionics for Space) architectures. This approachallows the code generation of a Simulink model to be executedon top of Lithos as XtratuM partition. Lithos is a ARINC-653compliant RTOS for XtratuM. The paper concentrates in howto smoothly port Simulink designs to XtratuM solving problemslike application partitioning, automatic code generation, real-timetasking, interfacing, and others. This process is illustrated withan autopilot design test using a flight simulator.