智能液晶触摸显示终端与单片机接口的设计  

Interface Design of LCD Touch-display Terminal and SCM

作　　者：纪松波[1] 侯婷[1] 

机构地区：[1]内蒙古工业大学信息工程学院,内蒙古呼和浩特010051

出　　处：《现代电子技术》2010年第12期16-18,共3页Modern Electronics Technique

摘　　要：通过对液晶触摸显示终端性能特点和控制方式的分析,对指令功能进行详细的阐述。以AT89C51单片机为核心,通过RS 232串行口连接CPU与触摸液晶显示终端,使系统CPU发出控制命令。详细说明了利用其生成图形显示人机界面的方法以及触摸按键的检测控制方法,从而实现对彩色触摸液晶显示器的控制。给出了单片机与串行控制液晶显示模块的接口电路原理、主要控制程序的设计方法及其主要功能的程序设计。解决了微处理器使用大点阵LCD显示器过程中,选择液晶屏、驱动、复杂的软件编程等问题。The command functions is elaborated after the analysis of performance characteristics and controlling modes of LCD touch-display terminal. With AT89C51 microcontroller as the core, CPU is eonneetted with LCD touch-display terminal through RS232 serial port. The method of generating the graphics displaying man-machine interface by LCD touch-display terminals is described. The control of color LCD touch-display is achieved through system control commands issued by CPU. The methods of testing and controlling the touch-button are illuminated. The principle of interface circuit of SCM and LCD terminal, the design method of the major controlling program and program design of the main functions are given. The selection of LCD screens, drivers and complex software programming in the course of the application of large dot-matrix LCD displays in the microprocessor is settled down.

关 键 词：串行控制 液晶触摸显示终端 程序设计 RS 232 

分 类 号：TP229[自动化与计算机技术—检测技术与自动化装置]