基于W77E58单片机的液晶触摸屏人机界面设计

摘要

该文介绍了一种在单片机控制的液晶触摸屏上实现友好人机交互的方法.其中,硬件平台以高性能单片机W77E58、液晶控制器RA8835和触摸控制器ADS7843为核心器件进行构建,软件部分基于模块化设计思想,采用C51语言进行编程,通过设置结构体变量、模拟SPI时序实现了多级菜单显示及其触摸功能.该触摸屏已在脉冲涡流数据采集系统中用作人机接口,可实现相关参数设置及状态显示,保证了系统具有良好的人机交互性.%A kind of approach of achieving the friendly LCD touch-screen interactive based on the MCU was described in this paper. The hardware platform was mainly based on the high performance microcontroller W77E58, LCD controller RA8835 and touch controller ADS7843 to constructed the core and software was modularly designed on C51 ogramming language by setting the structure variables and simulation SPI timing to achieve a multi -level menu display and touch function. The touch-screen has been used as the human interface of the pulsed eddy currents data acquisition system,and it can achieve the function of parameter settings and status display to ensure the system has good human-computer interaction.