卫星载荷1553B总线数据接口的设计与实现

The Key Technology Research of 1553B Bus Data Flow Interface of Satellite

卫星载荷总线数据流接口的实现对于卫星载荷数据流的传输体制能否正常工作起着关键性的作用,设计合理的数据流管理方案对于卫星载荷之间的正常通信至关重要。MIL-STD-1553B总线数据传输速率高,实时性好,具有合理的差错控制措施和特有的方式命令,适合星上大数据量的传输任务和特定环境的需求。本文使用龙芯配置卫星载荷1553B总线的工作模式,合理设计载荷数据流的传输形式,实现卫星载荷1553B总线的数据流接口。测试结果表明,数据接口可靠性高,实际应用效果好,满足卫星上的通信设计要求。

The realization of data bus interface of satellite load plays a vital role in the load flow of information transmission system, designing a reasonable data flow management scheme is vital for the nor- mal communication between the satellite loads. MIL-STD-1553B bus has higher data transfer rate, real- time character, reasonable error control measures and special mode command, which is appropriate to the requirements of satellite because of its special environment and large amount of data transmission tasks. This paper configures the 1553B bus mode of satellite load through dragon chip and designs the data stream transmission form to realize the data bus interface of 1553B bus data flow. Test results show that, data interface has high reliability and effective practical application which meets the design requirements for satellite communication.