基于DSP的空间相机1553B总线通信设计与实现

Design and Realization of Space Camera 1553B Communication System Based on DSP

摘要:

为提高MIL-STD-1553B总线接口的实时性并简化接口逻辑,从星载平台与相机控制器实际通讯功能需求出发,设计出了基于1553B专用接口芯片BU-61580与控制器核心TMS320C30的1553B总线通信系统;由FPGA完成BU-61580和TMS320C30之间的逻辑综合电路,并产生中断与片选信号;该系统实现了接收卫星平台数据注入与程控指令,发送工程参数等功能;系统硬件电路连接简单,数据时效性好,经过反复调试,已成功应用于某型号空间相机中。

Abstract:

Based on the need of communication functions between the satellite platform and camera controller, the 1553B communication system is designed by using BU-61580 as the protocol chip and TMS320C30 as host processor. FPGA completes the synthesize logic circuit、interruption and chip select signal needed for the interface. The system can achieve the tasks of receiving data infusion and remote control commands, sending engineering params. This system is real-time and highly inheritable, and has compact hardware structures.