Design And Implementation Of Software In The Environmental Control Data Processing Computer Based On VxWorks

Using the software development of Environmental Control Data ProcessingComputer in Environmental Control Life Support System as the background, theapplication of real time operating system VxWorks in this computer is the target of thisthesis. Environmental Control Data Processing Computer uses VxWorks as theoperating system and uses TSC695F with SPARC architecture as the CPU. The softwaredesign scheme of Environmental Control Data Processing Computer including the realtime performance, reliability and veracity of software is described in this thesis：According to the Environmental Control Data Processing Computer of the constraintsand conditions of use, On VxWorks operating system for a source-level cutting，reducethe size of the operating system and improve safety. Mastered the VxWorks operatingsystem cutting technology, but also can be used inadditionto SPARC architecture-based VxWorks operating system other than cutting; developedbased on the SPARC architecture BSP; completed the environmental control ofdata processing computer software development, and in accordance with the functionof each module to achieve the task of thinking and multi-programming;for environmental control capabilities of the computer data processing needs of asoftware functional testing to verify the feasibility of the overall function of thesoftware to achieve the design requirements.After completion of the study on the subject，the software of EnvironmentalControl Data Processing Computer on the basis of the current function, increase in theoperating system as the platform for application software support, application softwarecan be a variety of tasks to perform complex functions together, handling large amountsof data. This can reduce system complexity at the same time meet the functional andperformance requirements, Meet the requirements of the Environmental Control DataProcessing Computer computer task. The specific analysis, design, validationresults, can also in the future of other similar products in the design of spacecraft toprovide reference and recommendations.