MCU串行异步通信的几种实现方法与编程实例  

Implementation and Programming Example of Serial Asynchronous Communication For MCU

作　　者：蒋建武[1] 王宜怀[1] 章建民[1] 

机构地区：[1]苏州大学计算机科学与技术学院,苏州215006

出　　处：《军民两用技术与产品》2004年第1期36-40,共5页Dual Use Technologies & Products

摘　　要：以MotorolaM68HC08系列MCU为实现载体,提出了利用一片MCU实现多个串行通信口的方法,即利用MCU本身的SCI模块实现串行异步通信、利用I/O口进行模拟串行异步通信、利用定时器模块的输入捕捉和输出比较功能进行模拟串行异步通信;分析比较了这几种实现方式的特点,给出了具体实现的子例程及应用方法。In this paper, implementations of several serial asynchronous communication interfaces on a chip of MCU have been mentioned based on Motorola M68HC08 MCUs. They are SCI interface module, I/O interface module, and timer interface module. At the same time ,the Characteristics of these three implementations are been analyzed and compared each other. The programming examples and application method are been given.

关 键 词：MCU 串行异步通信 编程 SCI模块 I/O M68HC08 串行通信接口 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]