一体化星务计算机多路多模式通信系统的实现

Reality of Multi-Channel and Multi-Mode Communication System for Incorporate Design of On-Board Computer

在某一体化微小卫星的设计中,针对其高性能星务计算机硬件接口受限,无法完成对星务、姿控分系统内十余个测量、控制部件的管理,设计了一种多路多模式通信系统作为星务计算机的通信功能扩展。该系统制定了与星务计算机的通信协议,以FPGA作为控制器并应用Verilog HDL编程技术,采用具备缓存功能的多路多模式全双工串行通信架构,完成星务计算机对各测量、控制部件高效、低延迟的通信管理。实验结果表明,该系统运行稳定、功能正常,满足本工程设计的应用需求。

In incorporate design of a small satellite,on-board computer＇s hardware resource is limited because of its high performance,and can not manage the more than ten measuring and control components of on-board attitude control subsystem.A multi-channel and multi-mode communication system is designed as a communication function extension of the on-board computer.The communication protocol with on-board computer is ruled,FPGA is used as the controller,and Verilog HDL programming technology,full duplex serial communication architecture of multi-channel and multi-mode with cache function are adopted.On-board computer can indirectly manage them in high efficiency and low delay through the system.Experiment shows that system can work normally and rightly,and meet the application requirements of the engineering design.