摘要
阐述了89C51单片机串行通信口的结构及波特率的计算方法,通过对89C52串行通信口波特率发生器结构的分析,指出了89C52产生波特率的两种方式。计算出了89C51和89C52产生波特率与初值的对应关系,找出了波特率的最大值,给出了初始化编程的实例。
This paper expounds the structure of 89C51 serial communication port and calculation method of baud rate, it points out the 89C52 the two ways of baud rate based on 89C52 serial communication baud rate generator structure analysis. The corre-sponding relation of baud rate from 89C51&89C52 and initial value is by calculated, and it find out the maximum of baud rate, and it presents the example of initialization programming.
作者
李鹏
LI Peng (College of Computer Science, YANGTZE University, Jingzhou 434023, China)
出处
《电脑知识与技术》
2013年第10期6265-6267,共3页
Computer Knowledge and Technology
关键词
波特率
串行通信口
单片机
89C52
baud rate
serial communication port
single chip microcomputer
89C52