| 单片机串行口的扩展研究 |
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| 引用本文： | 吴锴,郝称意,郭海霞.单片机串行口的扩展研究[J].山西农业大学学报(自然科学版),2008,28(1):93-96. |
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| 作者姓名： | 吴锴 郝称意 郭海霞 |
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| 作者单位： | 山西农业大学,工程技术学院,山西,太谷,030801 |
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| 摘 要： | 在以单片机为核心的系统当中,串行通讯是经常用到的通讯方式,MCS-51系列单片机的串行通信口只有一个,若实现与多个外围设备串行的连接,必须对其串行口进行扩展。本设计使用串行口扩展芯片GM8125将AT89C52的串行口扩展成5个子串行口,并在单通道和多通道模式下实现了它们之间的通讯。
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| 关 键 词： | 单片机 串行口 扩展 GM8125 |
| 文章编号： | 1671-8151(2008)01-0093-03 |
| 修稿时间： | 2007年5月14日 |
Study on Expansion of Sigle-Chip Computer's Serial Port |
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| WU Kai.Study on Expansion of Sigle-Chip Computer's Serial Port[J].Journal of Shanxi Agricultural University,2008,28(1):93-96. |
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| Authors: | WU Kai |
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| Abstract: | In a system which takes single-chip computer as the croe,the serial communication is a common-used manner.MCS-51 series single-chip computers have only one serial port.In order to realize the connection with many peripheral equipments,we must expand the sigle-chip computer's serial port.By using serial port's expansion chip GM8125,the design expands single-chip computer AT89C52's serial port into five subserial ports and achieves their communication in the form of single passage and multipassage. |
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| Keywords: | Single-chip computer Serial port Expansion GM8125 |
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