基于RTEMS系統(tǒng)的輕量級GUI系統(tǒng)的設計與實現(xiàn)
[Abstract]:With the rapid development of computer technology, embedded system has been widely used. As an important component of embedded system, GUI (user graphic Interface (, GUI () system has become an indispensable part of more and more embedded system products. RTEMS is an excellent embedded real-time operating system, which is not only a reasonable kernel structure, but also an important part of embedded system. And the performance is excellent, has the widespread application prospect. However, the operating system does not have effective GUI system support, so it is necessary to design and implement a GUI system suitable for RTEMS. In this paper, a lightweight GUI system based on RTEMS is proposed on the basis of deep discussion of several popular embedded operating systems and GUI systems. The GUI system uses a hierarchical design concept, which consists of device driver layer, input engine layer, graphics engine layer, character library layer, control library layer and user API (Application programming Interface) layer. Then this paper discusses each layer of GUI system in detail, including the design idea and implementation method of key technology in each layer, such as bottom driver implementation, window mechanism implementation, The realization of Chinese and English character display technology, the realization of object communication mechanism of GUI system control, the method of optimizing the whole system, etc. At the end of the thesis, the application example and the performance evaluation of the GUI system are given.
【學位授予單位】:北京郵電大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TP368.1
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