基于C8051F020的USB OTG通信系統(tǒng)的設計與實現(xiàn)
發(fā)布時間：2018-08-27 09:47
【摘要】：為滿足便攜式設備脫離PC的點對點USB互連的市場需求，USB標準協(xié)議的補充規(guī)范—USB OTG技術(shù)適時誕生。USB OTG技術(shù)只針對全速、高速和超高速的USB設備提出，該技術(shù)因其便捷性逐漸成為移動式設備不可或缺的接口與功能。 本文針對這一發(fā)展趨勢，基于MCU+USB的設計思路，實現(xiàn)了一套以SiliconLaboratory公司的C8051F020為處理器，以Philips公司的ISP1362為USB處理芯片的USBOTG通信系統(tǒng)，調(diào)研并分析市場主流需求，，提供了在脫離PC的情況下支持OTG設備之間內(nèi)部文件數(shù)據(jù)互操作的功能。文中詳細論述了USB OTG接口設備從硬件設計到軟件實現(xiàn)的開發(fā)流程。在硬件設計方面，給出了控制模塊、USB模塊、系統(tǒng)存儲模塊和其他輔助模塊的原理圖。著重分析了USB OTG功能設備系統(tǒng)軟件的設計與實現(xiàn)，根據(jù)模塊化和層次化思想，給出了系統(tǒng)軟件的結(jié)構(gòu)，包括系統(tǒng)應用模塊、OTG驅(qū)動模塊、主機功能模塊和外設功能模塊，同時介紹了各個功能模塊的程序設計思路，并分析了系統(tǒng)的運行結(jié)果，給出了部分調(diào)試數(shù)據(jù)，通過實際的調(diào)試測試工作驗證了系統(tǒng)的各項功能。 通過C8051F020和ISP1362構(gòu)建的開發(fā)平臺，研究了USBOTG協(xié)議、MassStorage設備類協(xié)議、UFI子類協(xié)議以及FAT32文件系統(tǒng)協(xié)議，并在文末提出了設計USBOTG通用協(xié)議棧的思想，該協(xié)議棧具有良好的跨平臺移植功能和強大的任務掛載接口，可以方便的服務于其他項目需求。
[Abstract]:In order to meet the market demand of portable devices from the point-to-point USB interconnection of PC, it is proposed that -USB OTG technology be born in good time only for USB devices with full speed, high speed and super high speed. The technology has become an indispensable interface and function for mobile devices because of its convenience. Aiming at this development trend, based on the design idea of MCU USB, this paper implements a set of USBOTG communication system with C8051F020 of SiliconLaboratory Company as processor and ISP1362 of Philips Company as USB processing chip, and investigates and analyzes the mainstream demand of the market. Provides the ability to support interoperation of internal file data between OTG devices without PC. The development process of USB OTG interface equipment from hardware design to software implementation is discussed in detail. In the aspect of hardware design, the schematic diagram of control module USB module, system storage module and other auxiliary modules is given. The design and implementation of USB OTG functional equipment system software are analyzed emphatically. According to the idea of modularization and hierarchy, the structure of the system software is given, including the system application module, the main machine function module and the peripheral function module. At the same time, the program design idea of each function module is introduced, the running result of the system is analyzed, some debugging data are given, and the functions of the system are verified by the actual debugging and testing work. Based on the development platform of C8051F020 and ISP1362, this paper studies the USBOTG protocol and FAT32 file system protocol. At the end of this paper, the idea of designing USBOTG general protocol stack is put forward. The protocol stack has good cross-platform porting function and powerful task mount interface, which can easily serve other project requirements.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TP334.7
[Abstract]:In order to meet the market demand of portable devices from the point-to-point USB interconnection of PC, it is proposed that -USB OTG technology be born in good time only for USB devices with full speed, high speed and super high speed. The technology has become an indispensable interface and function for mobile devices because of its convenience. Aiming at this development trend, based on the design idea of MCU USB, this paper implements a set of USBOTG communication system with C8051F020 of SiliconLaboratory Company as processor and ISP1362 of Philips Company as USB processing chip, and investigates and analyzes the mainstream demand of the market. Provides the ability to support interoperation of internal file data between OTG devices without PC. The development process of USB OTG interface equipment from hardware design to software implementation is discussed in detail. In the aspect of hardware design, the schematic diagram of control module USB module, system storage module and other auxiliary modules is given. The design and implementation of USB OTG functional equipment system software are analyzed emphatically. According to the idea of modularization and hierarchy, the structure of the system software is given, including the system application module, the main machine function module and the peripheral function module. At the same time, the program design idea of each function module is introduced, the running result of the system is analyzed, some debugging data are given, and the functions of the system are verified by the actual debugging and testing work. Based on the development platform of C8051F020 and ISP1362, this paper studies the USBOTG protocol and FAT32 file system protocol. At the end of this paper, the idea of designing USBOTG general protocol stack is put forward. The protocol stack has good cross-platform porting function and powerful task mount interface, which can easily serve other project requirements.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TP334.7
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