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本文介绍一种用单片机—单板机实现的多微机数字磁带回放系统.采用四片8039单片机代替传统的硬件逻辑电路完成对磁带回放的四路数据的解码及串/并转换功能,用Z80单板机作为数据处理和控制单元.这种设计方案使本系统具有线路简单、工作可靠、成本低等特点.文中介绍了系统的结构,单片机解码以及单片机—单板机间的通讯问题.
This paper introduces a multi-computer digital tape playback system using single chip microcomputer - single board machine.Using four 8039 single-chip microcomputer instead of the traditional hardware logic circuit to complete the decoding of the four channels of tape playback and serial / parallel conversion function, with a single Z80 Board machine as a data processing and control unit.This design makes the system has the characteristics of simple circuit, reliable work, low cost, etc .. The article describes the system structure, SCM decoding and SCM - single board machine communication problems.