| 一种简单的光电隔离RS-232电平转换接口设计 |
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| 引用本文： | 王三胜,顾彪.一种简单的光电隔离RS-232电平转换接口设计[J].电测与仪表,2001,38(1):44-45. |
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| 作者姓名： | 王三胜 顾彪 |
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| 作者单位： | 大连理工大学电气工程与应用电子技术系, |
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| 摘 要： | 介绍一种简单实用的光电隔离RS－232电平转换接口设计方法。采用该方法设计的接口电路不需要RS－232电平转换器，由光电耦合器直接完成电平转换．并给出一个MCS－51单片机与PC机通讯的硬件连接电路、完整的通讯协议和软件设计流程。
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| 关 键 词： | RS-232C 光电隔离 串行通讯 电平转换 |
| 文章编号： | 1001-1390(2001)01-0044-02 |
| 修稿时间： | 2000年10月21日 |
A kind of simple photoelectric-isolated RS-232 voltage conversion interface design |
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| Wang Sansheng,GU Biao.A kind of simple photoelectric-isolated RS-232 voltage conversion interface design[J].Electrical Measurement & Instrumentation,2001,38(1):44-45. |
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| Authors: | Wang Sansheng GU Biao |
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| Abstract: | A design method of a kind of practical photoelectric-isolated RS-232 voltage conversion interface is introduced .Making use of the method ,a connection circuit is designed, which does not need RS-232 voltage converter and fulfills voltage conversion by photoelectric coupler directly. At the same time, hardware connection circuit,complete communication protocols and software design of communication between MCS-51 single-chip microcomputer and PC computer are given. |
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