基于ARM微处理器的液晶触摸屏的接口设计  

ARM Microprocessor-based LCD Touch-screen Interface Design

作　　者：梁明亮[1] 张惠敏[1] 徐冰 

机构地区：[1]郑州铁路职业技术学院,河南郑州450052 [2]郑州供电段,河南郑州450000

出　　处：《计算机测量与控制》2011年第3期691-693,718,共4页Computer Measurement &Control

基　　金：河南省教育厅科技攻关资助项目(2009C510002)

摘　　要：作为人机交互的重要手段,液晶触摸屏使用越来越多,基于微控制器与触摸屏的接口技术在工业控制、智能家电等领域得到应用广泛,开发微控制器与液晶触摸屏的接口技术是智能电子产品设计的重要工作;介绍了一款液晶触摸屏系统的总体设计方案、电路接口和编程方法;该系统由TFT液晶屏模块、触摸屏和ARM微处理器控制板组成;TFT液晶模块内置SSD1289控制器,尺寸3.2英寸、分辨率240×320像素;触摸屏由触摸传感部件和触摸屏控制器ADS7843组成;控制板采用ARM7微处理器LPC2148为控制核心;测试和工程实践结果表明,所设计的软、硬件达到了各项要求,并且具有操作方便、稳定性好、性价比高等技术特点,有较好的推广应用价值。As an important means of human--computer interaction, the LCD touch-screens is widely used. Based on micro--controller and touch screen interface technology in industrial control, intelligent home appliances, are widely used. Development of micro--controller with LCD touch screen interface technology is an important part of the design work of the intelligent electronic products. Introduced a LCD touch screen system design program, circuit interfaces, and programming. The system consists of TFT LCD modules, touch--screen and control board of ARM microprocessor. TFT LCD module contains SSD1289 controller, it is 3.2 inch, 240 × 320 pixel resolution; touch screen is composed of the touch sensing components and the ADS7843 touch screen controller; the ARM7 LPC2148 microcontroller is the core of the control board. Testing and engineering practice shows that the design of software and hardware meet the requirements, also has easy operation, good stability, cost-effective higher technical characteristics and has good application value.

关 键 词：液晶 触摸屏 ADS7843 ARM7 LPC2148 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]