A Study About Unit Testing for Embedded Software of Control System in Nuclear Power Plant

As the nerve center of nuclear power plant, the control system ensures the safety and economy of power plant operation, and its software test is very important. With the development of digital nuclear power and the wide application of embedded system software in the world, more and more embedded software has been applied to the control system and intelligent equipment of nuclear power plant. This paper analyzes the characteristics of embedded system software of control system in nuclear power plant and the difference between embedded system software and general application software from the perspective of test, and the impact on test. It puts forward a unit test method of embedded software, which realizes the separation of application software and underlying hardware by means of software structure analysis, program piling, syntax modification, hardware simulation, etc. in nuclear power plant based on ARM architecture. The successful application of V&V project unit test of plant control system software provides reference for unit test of embedded and similar hybrid programming software.