基于μCOSⅡ实时操作系统的电子画板的设计

基于UCOS-II实时操作系统完成了触摸屏传感器的程序驱动设计、触摸屏与LCD坐标的校准等工作,设计了一款嵌入式系统电子画板.实现人机交互菜单式的用户界面设计,电子菜单选择绘图背景,印花图案,画笔颜色、粗细、形状等参数,RG B调色按钮定义用户需要的画笔颜色,在绘图区域绘出用户需要的图案,书写文字.经过实验调试,电子画板功能完整,用户界面友好,操作简便.

In this paper,an embedded electronic drawing board based onμCOSⅡreal-time operating system,LCD and touch screen is designed.The touchscreen sensor driven program is written.Calibration work of the touch screen and LCD coordinate is done.The man-machine interactive menu style of user interface is designed.The drawing background can be changed.The printing and the painting brush with colors,thickness and shape,etc.can be selected by electronic menu.The brush color based on RGB color button is def ined by the user's own needs to draw the pattern and the text in the drawing area.Finally test experiment is done.GUI is friendly,full-functional.It is easy to operate.