【作者】 赵淑晶；

【导师】 杨斌；

【作者基本信息】 西南交通大学 ， 计算机应用技术， 2008， 硕士

【摘要】 在当前日益信息化的社会中,伴随着计算机技术与行业应用的紧密结合,通用计算机已经不再是信息产业的主角,嵌入式计算机系统,正逐渐成为计算机时代的后起之秀。嵌入式技术与手持设备相结合,拓展出许多新的应用领域。本设计基于S3C2410A处理器,开发出一款通用手持终端,并在此基础上实现了该终端的两项关键技术:TFT-LCD界面显示及PCMCIA/CF接口的WLAN功能。本文设计并实现了以S3C2410A核心板为硬件核心的通用手持终端的嵌入式硬件平台,独立设计的扩展板主要包括:4组DC-DC电源供电模块、JTAG调试接口、3个UART串口、一个以太网接口、LCD模块电路、PCMCIA/CF接口电路、实时时钟供电模块、复位电路、系统总线驱动及扩展电路、触摸屏电路等。同时,还支持USB Host/Device接口、SD卡接口。丰富的外设资源以及高性能低功耗的处理器平台为通用手持终端的实现提供了较好的硬件支持。本文对SHARP LQ035Q7DH01 TFT-LCD模块和S3C2410A内置的LCD控制器接口进行了深入的分析,设计了专用的接口电路。采用MAXⅡ系列CPLD芯片实现了两者接口的时序适配,LCD上电顺序采用S3C2410A的GPIO进行管理。详细分析了Linux下帧缓冲区FrameBuffer的操作,并在此基础上完成了该LCD模块驱动程序的移植。本文设计了PCMCIA/CF硬件接口并对其软件驱动结构进行了详细的分析,在此基础上实现了手持终端的PCMCIA/CF WLAN功能。该通用手持终端经过测试表明其功能正常、运行稳定,具有一定的理论和实用价值。更多还原

【Abstract】 In the current increasingly information-based society, as the close combination of computer technology and industry application, general computer systems are no longer the main characters in information industry, and embedded computer systems are becoming a rising star of the computer age. Embedded technology and handheld devices combine and expand to many new applications. This design developed a universal handheld terminal based on S3C2410A processor, and based on this implemented two key technologies: TFT-LCD display and PCMCIA/CF WLAN.This paper designed and implemented the universal handheld terminal hardware platform based on S3C2410A core board. The extended board designed by myself includes: 4-ch DC-DC, JTAG ICE, 3-ch UART, 10/100M Ethernet, LCD module, PCMCIA/CF, RTC and Reset, bus drivers and extensions, touch-screen circuit. At the same time, this platform supplies USB Host/Device, and SD card. All these make a good hardware support for handheld terminal.This paper analyzed SHARP LQ035Q7DH01 TFT-LCD Module and LCD controller embedded in S3C2410A processor in detail, designed a dedicated interface circuit. MAX II CPLD was used to adapt the timing interface and GPIOs were used to deal with the power supply sequence in TFT-LCD module. Analyzed Linux FrameBuffer operations in detail and on this basis completed LCD driver.This paper designed PCMCIA/CF hardware interface and explored it’s Linux driver structures, and then implemented the PCMCIA/CF WLAN function in the terminal.The test showed that the terminal works correctly and stably. It has a certain theoretical and practical value.更多还原