| The embedded graphical user interface is an important part of an embedded real-time operating system. It can promote development efficiency and bring down project risk. With the capability is higher and higher, the embedded GUI(Graphical User Interface) be need more seriously than any time before.At first, in this thesis, the history of embedded systems and user interface are outlined, several GUI systems under embedded systems are compared, and the peculiarity of GUI on embedded systems is pointed out, that is, directly, simple, lightness, less resource requirement, quicker response, high reliability.Based on the analysis above, this paper begins with a specific product, explores the solution to design and implement embedded GUI. Requirement analysis and master plan are mentioned first. And from a configurative perspective, three subsystems are defined and their interactions are set down; from a portative perspective, the hierarchic architecture of GUI is devised. Then brings out the framework introduces and analyses the design and implement of the kernel module and input/output module and the main data structure, important method, function process of every sub-module. |
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