基于DSP和FPGA的1553B总线接口电路设计

Design of 1553B Bus Interface Circuit Based on DSP and FPGA

文章对1553B总线接口系统进行深入的研究,采用DSP+FPGA技术设计了总线接口系统;DSP和FPGA之间采用EMIF接口进行通信,DSP实现数据控制,FPGA实现1553B通信协议;通过DSP的RS232接口连接PC机对系统进行测试,通过测试系统能实现1553B总线的3种工作模式;该系统的控制结构简单,可靠性高,扩展性好,具有一定的通用性。

The 1553B bus interface system is designed based on DSP＋FPGA. The communication between DSP and FPGA use EMIF interface： DSP carries out the control of data; FPGA realizes 1553B communication protocol. The system is tested by connections of RS232 interface of DSP and PC, and three kinds of work patterns of 1553B bus is realized. The system has certain commutability because of its simple control structure, high dependability and good expanding characteristic.