摘要
随着手持式设备的不断普及,低成本、高性能、结构简单的嵌入式Linux已得到广泛应用。首先,介绍了基于Qt/Embedded嵌入式系统设计的一般步骤,其次,在分析了串口和Wi-Fi通信协议的基础上,给出了基于串口和Wi-Fi两种通信方式的嵌入式控制器设计方案,并结合手持式设备的一般特点,实现了主从控制器之间的多模式数据通信,同时完成Linux操作系统的裁剪与移植并通过触摸屏实现人机交互。最后,阐述了2440嵌入式Linux的Qtopia应用程序开发过程。
With the increasing popularity of handheld devices, embedded Linux with the characteristics of low cost, high perfor-mance and simple structure has been widely applied. This paper presents general steps of the design based on the Qt/ Embedded system at first. Then, after the analysis of the serial ports and Wi-Fi communication protocol, provides embedded controller design scheme based on two communication modes： serial ports and Wi-Fi. Besides, along with the general characteristics of handheld devices, it realizes multimode data communications between the master controller and slave controller. At the same time, it accomplishes the clipping and transplant of the Linux operating system as well as realizes human-machine interaction through the touch screen. At last, this paper illustrates the development process of Qtopia application program which is based on 2440 Embedded Linux.
出处
《自动化技术与应用》
2011年第11期39-42,共4页
Techniques of Automation and Applications
