【摘要】 在工业控制领域,为了保证系统的有效性和可靠性,一般采用PC机作为主机,DSP作为从机的方式,本文分别介绍了PC机与DSP之间基于RS-232协议进行点对点近距离串口通信以及基于RS-485协议多点远距离串口通信的软硬件方案,并对它们的优缺点进行了讨论。同时提出了一种校验和的校验方法。更多还原

【Abstract】 In industrial contro l fields,in order tokeep a system work in an effective and reliable way,the PC actsa main pro-cessor and the DSP servesasa co-processor,Thispaper intro-d ucesserial communication between personal computer and digi-tal signal process or,includingboth the hardware and software.The paper laysemphasison the point-point and short-distance communication based on RS-232protocol and the multi-po int and long-distance communication based on RS-485protocol,and alsodiscussesa bout their advantagesand disadvantages.At the same time thispaper putsforward a kind of checksum method.更多还原