【作者】 张栋； 金茂忠； 刘超； 刘辉；

【Author】 Dong ZHANG,Maozhong JIN,Chao LIU,Hui LIU BeiHang University,Beijing,China,100191

【机构】 北京航空航天大学；

【摘要】 1553B总线仿真系统使1553B总线测试过程减少了对硬件环境的依赖,但在仿真环境中同步时间所占系统运行时间的比例过大。本文介绍了一种改进的1553B总线仿真的同步方法。根据总线传输率以及芯片主频确定最小基本同步时间,在时间服务器统一控制所有终端运行的情况下,根据网络传输特点,采用网络底层协议传输数据,减少传输时间。同时对1553B总线通讯的分析,去除不必要的同步周期,进一步减少同步时间,从而到达提高同步效率的目的。更多还原

【Abstract】 The 1553B bus test process’s dependence on the hardware environment is reduced by using the 1553B bus simulation system,but the synchronization time is too large proportion of the total system time.This paper describes an improvement synchronization method for 1553B Bus Simulation.Determine the minimum basic synchronization time according to the bus transfer rate and the chip fiequency.All terminals are under the control of the time server.According to the transmission characteristics of network,the system can transfer data by data link layer protocol to reduce transmission time.At the same time,the system can get rid of unnecessary synchronization cycle to reduce synchronization times.Then the system can reach the purpose of improving the efficiency of synchronization.更多还原