The Development And Integration Of Real-time Linux Target In Kd-drt

With the expansion of simulation system's application scope,more and more simulation platform need the haracteristics such as precision timing,less fluctuation and effective interruption handling. As core support of the real time simulation platform,operation system is the key part that makes these characteristics. With Linux operation system's excellent real time foundation and advantage of open source code,we can expect to achieve this technology successfully.The paper firstly studies the overall structure and functions of KD-DRT, which is a development platform of hardware in the loop simulation system,using methods of such soft wares as Eclipse,Cygwin and GCC for the target terminal Linux system simulation development environment. Secondly, it studies the research point of customization target Linux system, separately from the kernel customization, manual cutting and Busybox tools three aspects of custom tailoring realize Linux system, then in comprehensive use of three methods on the basis of research, the paper investigates on how to establish bootloader, root filesystem and the building of macppc U Disk Sim-Linux system, customizing the cutting method on the experimental demonstration.At the end of the paper,it designs example programs,and comprehensively validates the cutting-plan of custom-made objective generator terminal linux operation system from the point of view of timer micro framework interop,multiprocess operation,intercommunication between processes,and network programming. The paper analysis these datum,and guarantee the effectiveness and stability of target system.It is proved that the development and integration of objective real time Linux in KD-DRT meets the qualification of design and realizes the expected function.