UC知道江湖急救！用英语翻译下面的话
来源：百度知道 编辑：UC知道 时间：2024/06/14 05:28:17
第一部分以AT89S51单片机为基础，详细讲述了单片机与PC机之间通信的原理、技术和接口电路。利用89S51和PC机上已有的串行口设计出硬件电路和软件编程从而实现单片机与PC机短距离的简单通信。在硬件电路上，采用MAX232实现PC机与单片机之间的电平转换，采用简单的3线制连接方法实现通信，即将PC机和单片机的发送数据端与接收数据端交叉连接，两者的地线直接相连；在软件编程上，PC机上是采用了现有的串口调试助手软件，单片机则利用汇编语言进行编程。
In the first part, the principle , technology and the interface of the communication system are introduced in detail. Then it schemes the hardware circuit and software program to realize short-distance communications between single chip and PC. On the hardware electric circuit, MAX232 is used to transform power level between PC computer and the single chip microcomputer. This design uses 3-lines connection method, that is transmission data end andraccept the data end of PC computer and the single chip microcomputer is connected across, and both ground line is directly connected. In the software programming, PC machine is used the software of serial port to debug, the single chip microcomputer is programmed using the assembly language.