【摘要】 本文介绍了ＩＢＭ－ＰＣ系列计算机通过ＲＳ－２３２Ｃ串行口与多个单片微机组成的分布式系统中一种可双向选通串行通信共享器的设计方法。给出通信共享器的设计电路；并对电路工作原理进行了详细剖析。更多还原

【Abstract】 A design method of double-direction serial communication sharing,which can be applied in the discrete system combined with IBM-PC computer and several single-chip Microcomputers by using RS-232C.the paper provided a design current of communication sharing,and analzed the working principle in detall.更多还原