基于总线技术的实时通信方法研究与应用

Research and application on ARINC429 bus real-time communication method

摘要:

针对武器装备ARINC429总线实时性要求高的问题,本文提出一种基于RTX实时操作系统的ARINC429总线实时通信方法并进行了应用。本文方法在PXI总线AMC5206B的基础上,搭建了软硬件环境,设计了Windows应用程序和RTX应用程序,通过共享内存进行数据传递,实现了RTSS进程在测试主流程的嵌入。设计了板卡在RTX系统下的驱动程序,实现了中断触发数据读取,提高了程序效率。最后,通过Windows应用程序实验验证了本文方法的功能,并具有实时性强,通用性好等优点。

Abstract:

Aiming at the Real-time performance requirement of ARINC429 bus in military hardware, a ARINC429 real-time communication method is proposed in this paper. This method is established on RTX real-time system. The hardware of this method is AMC5206B with a PXI bus. In order to be embedded into test process, a RTX application program has been designed. The communication bridge between the test process in windows and RTSS process is the shared memory. The driver program under RTX system is designed to improve the efficiency by the interrupt service. And application program under windows system verified the performance of this method.