【摘要】 本文设计并实现了一种基于复杂可编程逻辑器件的液晶显示屏驱动板.采用"可编程逻辑器件+存储器"的设计方案,将存储器中的数据与液晶屏上的点一一对应.通过对系统方案的分析,设计了时钟模块、接口数据转换模块、存储器模块以及显示模块.使用硬件描述语言编程实现了各个模块的功能,并在QuartusⅡ软件平台上进行了仿真验证,最后下载到驱动板上调试通过.其中"可编程逻辑器件+存储器"作为一个单独的驱动模块,可外接单片机或微处理器等控制器来实现对液晶屏的读写控制,不但降低了开发成本,系统的兼容性和可移植性同时也得到了很大的提高.更多还原

【Abstract】 A design and implement of TFT-LCD diver board based on CPLD is put forward in this paper.By analyzing the driving system,time block,interface data conversion module,RAM module and display module were designed.Function of each module is achieved in VHLD programming language,then simulated in Quartus Ⅱ software platform and downloaded in the diver board.As a separate drive module,"CPLD+RAM" join external controllers such as ARM and DSP to achieve the data sent to the LCD and display them,which reduced the cost of development and greatly improved the system’s compatibility and portability.更多还原