【摘要】 LCD(液晶显示屏)功能实现的好坏直接关系到掌上电脑的整体性能表现。然而 LCD种类繁多,工程师需要针对各种显示屏的时序匹配以及控制器的不同特点进行设计。基于嵌入式 Linux和 PXA255 处理器的背景下,介绍了彩色LCD显示功能的实现方法。其中,首先描述了显示驱动程序的架构;接着介绍了实现 LCD的显示功能的硬件平台;和说明了PXA255的显示控制器的使用;最后给出了实现LCD显示功能的可行的软件方案。更多还原

【Abstract】 The implemention of LCD is key of PDA`s performance. However there are many types LCD, engineer needs to weight various LCD and the CPU characteristics.Based on embeded Linux and the PXA255 processor, this artic introduced how to implement the colored LCD video function. First, this article shows the principle of video drive; then,it introduces hardware platform for realizes the LCD video function; and it explains how to use the the LCD control modular of PXA255; Finally , it gives a feasible software scheme that how to realize the LCD video function.更多还原