2003, 29(9): 829-833.
Abstract:
According to the requirements and characteristics of products as intelligent instruments based on MCU, DEG, a development platform for low-side embedded GUI systems, had been developed. DEG was a collection of development tools and graphics library. The graphics library, which was organized as an object-oriented application framework, was key for code reusing and platformization of embedded systems development. The framework offered the macroscopical framework and structural elements that was necessary to build a simple multi-window GUI systembased on MCU. Its macroscopical framework was organizied as hierarchy system, and run under event driving mechanism. According to the characteristics of MCU, organization mode of the class library was a flat interface-inherit mode, insteadof the complex class-inherit mode. DEG had been successfully applied into the development of the GUI sub-system of an intelligent instrument product.