摘要
以触摸屏为特征的嵌入式系统逐渐渗透到现代社会各个领域。本文以一个将实际应用于舰艇武器装备上的手持检测设备为例阐述如何用触摸屏及其相应控制器构成触摸屏输入系统。在系统设计中,触摸屏采用四线电阻式触摸屏,触摸屏控制器采用ADS7843控制芯片,微控制器采用ATmega64微处理器。在给出硬件连接的基础上提出基于ATmega64微处理器SPI传送的应用系统软件实现。
The embedded system characterized by touch screen infiltrates into every field of the society. Based on hand-holding test equipment which is applying in warship equipment, this paper illustrates the mechanism of the touch screen input system using touch screen and its controllers. In system design, the touch screen uses 4-wire touch screen and its controllers use ADS7843 controller IC, the mierocontroller uses ATmega64 microprocessor. This paper accomplishes the software design of the system, realizes SPI communication by the ATmega64 microprocessor.
出处
《微计算机信息》
2009年第23期33-34,47,共3页
Control & Automation
