单片机多串口通信扩展的设计及其应用  

Design and application of SCM serial communication extension

作　　者：詹平红 丁函 李文娟 

机构地区：[1]陆军军官学院,安徽合肥230000

出　　处：《自动化与仪器仪表》2015年第2期125-127,共3页Automation & Instrumentation

摘　　要：基于单片机与多个外围设备通信的实际需要,文中对于多串口通信模块的设计从软硬件两方面进行详细介绍,硬件设计上主要采用串口扩展芯片TL16C554扩展单片机ATmega128与外围电路的串行通信,软件设计上采用C语言编程,模块化实现串行通信。整个设计的结构简单,性能稳定,成本低廉,后期维护方便,在各种控制系统具有广泛的应用前景。Based on demand of the microcontroller and multiple peripheral devices in the communication, this paper for multiple serial port communication module design is described from two aspects of hardware and software. Hardware design adopting a serial port expansion chip TL16C554 extension microcontroller ATmega128 and peripheral circuit of serial communication. Software using C language programming, modular design to realize serial communication. The whole design has simple structure, stable performance, low cost, convenient maintenance, and has wide application prospects in various control system.

关 键 词：微处理器 串口通信 ATMEGA128 TL16C554 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]