【摘要】：便攜超短波通信平臺(tái)在當(dāng)今的一些特殊通信場(chǎng)景中,起著日益重要的作用,特別是在戰(zhàn)地、救災(zāi)現(xiàn)場(chǎng)及通信搶修現(xiàn)場(chǎng)等場(chǎng)景中,其重要性不言而喻。隨著與嵌入式技術(shù)相結(jié)合,以及用戶多元化需求的推動(dòng),便攜超短波通信平臺(tái)已經(jīng)由傳統(tǒng)的單一語音通信功能,朝著語音、短信、文件傳輸?shù)榷鄻I(yè)務(wù)并行的方向發(fā)展。功能的多樣化,建立在軟硬件復(fù)雜化的基礎(chǔ)上。在便攜超短波通信平臺(tái)上,嵌入式軟件起著至關(guān)重要的作用,它承擔(dān)著業(yè)務(wù)數(shù)據(jù)在底層數(shù)據(jù)處理硬件和上層軟件之間的雙向流通。該數(shù)據(jù)通道能否高效、可靠、實(shí)時(shí)的完成業(yè)務(wù)數(shù)據(jù)的在上下層之間的流通,決定了便攜超短波通信平臺(tái)多媒體業(yè)務(wù)通信的質(zhì)量好壞�；谏鲜鲩_發(fā)要求,本項(xiàng)嵌入式軟件分為兩個(gè)部分,硬件抽象層和硬件驅(qū)動(dòng)層。硬件抽象層負(fù)責(zé)將業(yè)務(wù)數(shù)據(jù)從數(shù)據(jù)處理芯片接口中傳送到Android應(yīng)用層軟件中,并負(fù)責(zé)一部分業(yè)務(wù)的處理;硬件驅(qū)動(dòng)層負(fù)責(zé)配置ARM芯片與數(shù)據(jù)處理芯片之間的數(shù)據(jù)接口,保證芯片間數(shù)據(jù)交互正常,同時(shí)負(fù)責(zé)數(shù)據(jù)處理芯片的控制管理等功能。兩個(gè)部分有機(jī)的結(jié)合,實(shí)現(xiàn)了一條高效穩(wěn)定的上下層雙向數(shù)據(jù)通路。本文的主要工作內(nèi)容如下:第一,詳細(xì)分析了便攜通信平臺(tái)嵌入式部分軟件的需求。明確了其實(shí)現(xiàn)數(shù)據(jù)通的任務(wù),并將其分為硬件抽象層和驅(qū)動(dòng)層兩個(gè)部分,并對(duì)各部分需完成的功能做出了細(xì)致分析,為接下來的設(shè)計(jì)實(shí)現(xiàn)做好準(zhǔn)備。第二,設(shè)計(jì)并實(shí)現(xiàn)了硬件抽象層和硬件驅(qū)動(dòng)層兩部分軟件。依據(jù)軟件開發(fā)由總到分的思想,先從總體出發(fā),分別設(shè)計(jì)了兩部分軟件的主體架構(gòu);然后到細(xì)節(jié)部分,將各功能獨(dú)立在單元,以模塊化的開發(fā)思路,每個(gè)功能模塊完成一個(gè)功能,各模塊相互合作,實(shí)現(xiàn)通信平臺(tái)統(tǒng)一的業(yè)務(wù)數(shù)據(jù)通路。最后,驗(yàn)證了在便攜超短波通信平臺(tái)上,通過嵌入式軟件實(shí)現(xiàn)的上下層雙向數(shù)據(jù)通路的業(yè)務(wù)處理能力。分別對(duì)硬件抽象層的各功能模塊、驅(qū)動(dòng)層配置的接口,以及整個(gè)通信平臺(tái)進(jìn)行了測(cè)試,并給出了測(cè)試結(jié)果。
[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(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN925

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