【摘要】 介绍了彩色液晶显示的驱动芯片s1d135 0 4 ,根据MCF5 2 72、s1d135 0 4的特性和液晶显示的要求设计出液晶显示的硬件电路 ,绘出了硬件电路的电路图 ,并对硬件设计中的难点———分频匹配问题和硬件配置问题进行了详细阐述。介绍了基于uClinux操作系统液晶显示驱动程序的结构及实现步骤 ,给出了液晶显示驱动程序的各个功能模块的设计 ,重点阐述了内存共享模块mmap()和I/O控制模块iotcl()的功能实现。更多还原

【Abstract】 This paper introduces the driver chip of color LCD-s1d13504. According to characteristic of MCF5272 and sld3504 and requirement of color LCD, the hardware circuit of color LCD is designed and its circuit diagram is protracted. The problems of frequency distribution and hardware configuration which are difficulties in hardware design are described in detail. The structure and realization process of LCD based on uClinux are introduced. And the design of each function module of LCD driver program is also offered. The function realization of share module of memory and control one of I/O are discussed emphatically.更多还原