基于ARM与WindowsCE的LCD显示器设计

设计了基于嵌入式处理器IntelPXA270和WindowsCE的TFT屏LCD显示器。对IntelPXA270的LCD控制器和相关I/O控制口进行了分析,研究了TFT屏显示数据读写时序、帧缓冲区的设置、像素与数据格式配置,在WindowsCE下进行系统定制,把LCD驱动模块加入定制的系统并进行调试。测试表明,显示器具有友好的图形界面,驱动程序兼容性好;显示亮度达100尼特,克服了一般LCD高亮度伴随着高功耗的矛盾。

LCD system based on embedded processor and Windows CE system

A kind of LCD system of the TFT is designed based on embedded processor IntelPXA270 and WindowsCE system.The functions of IntelPXA270 LCD controller and the general I/O ports is analyzed;TFT screen display of the data according to read-write sequential, the frame buffer establishment and the pixel and the data format disposition are studied.The system is built under WindowsCE,LCD driver module is joined into the system which has been custom-made and then the LCD drviver is debugged. The experiment results show that the display system have the friendly graphical interface, the driver has achieved the good hardware compatibility; the display bright is 100, the question that the general LCD is the most bright with the largest power is solved.