便攜超短波通信平臺嵌入式軟件關鍵技術研究與驗證
[Abstract]:The portable ultrashort wave communication platform plays an increasingly important role in some special communication scenarios, especially in the battlefield, disaster relief scene and communication repair scene, the importance of which is self-evident. With the combination of embedded technology and user diversity, the portable ultrashort communication platform has been developed from the traditional single voice communication function to multi-service parallel direction, such as voice, short message, file transmission and so on. The diversification of functions is based on the complexity of hardware and software. Embedded software plays an important role in the portable ultrashort wave communication platform. It is responsible for the two-way circulation of service data between the underlying data processing hardware and the upper software. Whether the data channel can efficiently, reliably and realtime complete the circulation of service data between the upper and lower layers determines the quality of multimedia service communication of portable ultrashort wave communication platform. Based on the above development requirements, the embedded software is divided into two parts, the hardware abstraction layer and the hardware driver layer. The hardware abstraction layer is responsible for transferring the service data from the data processing chip interface to the Android application layer software, and is responsible for the processing of part of the business, and the hardware driver layer is responsible for configuring the data interface between the ARM chip and the data processing chip. Ensure the normal data exchange between chips, and responsible for the control and management of the data processing chip and other functions. The two parts are combined to realize an efficient and stable two-way data path between upper and lower layers. The main work of this paper is as follows: first, the requirements of embedded software of portable communication platform are analyzed in detail. The task of realizing data communication is clarified, and it is divided into two parts: the hardware abstraction layer and the driver layer. The functions to be completed in each part are analyzed in detail to prepare for the following design and implementation. Secondly, the hardware abstraction layer and the hardware driver layer are designed and implemented. According to the idea of software development from total to division, this paper first designs the main structure of the two parts of software from the overall perspective, and then to the detail part, the functions are independent in the unit to develop the idea of modularization. Each functional module completes a function, and the modules cooperate with each other to realize the unified service data path of the communication platform. Finally, the service processing capability of the upper and lower layer bidirectional data path realized by embedded software on the portable ultrashort wave communication platform is verified. The functional modules of the hardware abstraction layer, the interface of the driver layer and the whole communication platform are tested, and the test results are given.
【學位授予單位】:電子科技大學
【學位級別】:碩士
【學位授予年份】:2016
【分類號】:TN925
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