基于μC/OS-Ⅱ实现PC机与1553B总线接口的数据通讯

Data Communication Between Computer and 1553B Bus Interface Based on μC/OS-Ⅱ

MIL-STD-1553B数据总线协议是在航空电子综合化技术发展过程中形成的现代航空机载系统通讯设备的接口标准,为了提高与计算机之间通信的可靠性,提出了基于μC/OS-Ⅱ的实时操作系统,通过采用TMS320F2812型DSP与FPGA相结合的设计思想来实现1553B总线接口与计算机之间的数据接收与发送;同时给出了主要的硬件接口电路和软件设计流程及相关程序代码;最后针对接口通讯模块进行相关测试,初步测试证明能够完成通讯任务;设计增强了总线通讯的可靠性和实时性,同时提高了系统的整体性能。

MIL--STD--1553B data bus protocol is the interface standard of modern aviation onboard system communications equipment, in order to improve the reliability of communication with the computer, based on a real--time operating system μC/OS-Ⅱ , through the use of a combination of DSP and FPGA design ideas the data receiving and sending is achieved between the 1553B bus interface and the computer. At the same time gives the main hardware interface circuit and software design processes and associated program code. Finally, associated communication module for interface testing proved that the interface could achieve the bus communication tasks. This design enhances the re- liability and real--time of the bus communication and would benefit improving the overall performance of the system.