针对机载组合导航系统与飞控系统交联的需要,提出用DSP+FPGA相结合的设计思想实现1553B总线终端接口设计,从硬件连接、时序逻辑设计以及上层软件设计三个方面介绍了基于该设计思想的远程终端RT(RemoteTerminal)的初始化及数据接收设置方法。最后结合实际工程进行了编程测试,测试结果证明了该方法是合理的,所设计的系统具有设计灵活、可扩充性高等特点。

Based on the need of cross-linking between flying control system and integrated navigation system of aircraft, the 1553B data bus communication interface was implemented by using DSP+FPGA. The setup method for RT initialization and data receiv-ing was introduced in detail from aspects of hardware connection, sequential logic and upper software design. Finally, the proposed method was programmed and tested according to the engineering application. Testing result reflects that the designed method is reasonable and the proposed method has many advantages over the existing ones such as design flexibility and high redundancy.