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给出了小型集散系统中多处理机之问的一种通信方法。该方法是在总线型网络上建立一个逻辑控制环,采用令牌传递的方式进行通信。通信系统由 8031单片机进行控制,采用与下位机共享存贮器的方法与其进行数据的交换,传输线上采用标准的EIARS—232C逻辑电平。
A communication method of multiprocessor in small distributed system is given. The method is to establish a logic control loop on a bus network and use a token transfer method to communicate. The communication system is controlled by 8031 one-chip computer, adopt the method that shares memory with lower computer to exchange data with it, the transmission line adopts the standard EIARS-232C logic level.