双系统微机信息共享新方法

New Method to Share Communication in Dual-system Computer

在一高精度导航系统的研制过程中,采用了双系统微机,双系统微机的通信成为有待解决的重要课题;介绍了一种采用双端口SRAM为主存储体的双系统微机共享信息的接口电路和软件的设计方法,在双系统微机之间建立了一个公共的存储区域,两微机能随时在公共区内存取数据,满足了系统实时、高效、精确的通信要求;该接口卡已开发完成,并多次投入使用,功能完好,性能稳定;该方法在多系统微机内外通信的接口电路中具有普遍意义,且容易实现,功能强大。

The dual-system computer is applied in development of precision navigation system, the communication in dual-system computer is important. An design method of dual-system computer communication is introduced using dual-port SRAM, there is a common memory area between dual-system computer, two computers can easily get access .to common memory area. This interface circuit has developed and made using in, which shows its well function and stable performance. The design method using dual-ports SRAM is introduced which makes the internal and external communication interface circuit of multiple systems simple, efficient and powerful.