【正文】 .............................................................................................................. 2 方案論證 ............................................................................................................................. 2 系統(tǒng)各模塊的設(shè)計(jì) ............................................................................................................. 3 控制模塊 .......................................................................................................................... 3 AT89LV52 單片機(jī)的簡(jiǎn)介 ............................................................................................. 3 USB 接口模塊 .................................................................................................................. 5 USB 的簡(jiǎn)介 ................................................................................................................... 5 CH375 芯片簡(jiǎn) 介 ........................................................................................................... 6 ....................................................................................................................................... 10 3 系統(tǒng)軟件設(shè)計(jì) ...................................................................................................................... 11 系統(tǒng)軟件總體設(shè)計(jì)思想 ................................................................................................... 11 各功能模塊軟件程序設(shè)計(jì) ............................................................................................... 11 4 系統(tǒng)調(diào)試 .............................................................................................................................. 13 硬件電路調(diào)試 ................................................................................................................... 13 各功能模塊軟件調(diào)試 ....................................................................................................... 14 5 結(jié) 論 .................................................................................................................................... 14 參考文獻(xiàn) .................................................................................................................................. 14 致 謝 ........................................................................................................................................ 15 附錄 ............................................................................................................ 錯(cuò)誤 !未定義書簽。 附錄一 系統(tǒng)總體硬件原理圖 ................................................................................................ 15 附錄二 系統(tǒng)程序流程圖 ........................................................................................................ 18 吉林農(nóng)業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) I 基于 CH375 的單片機(jī) 與 PC 機(jī)通信應(yīng)用設(shè)計(jì) 學(xué) 生： 專 業(yè)： 電子信息科學(xué)與技術(shù) 指導(dǎo)教師： 摘 要 ： 安裝 USB設(shè)備不需要用戶自己設(shè)置硬件與軟件的選項(xiàng) ，而且傳輸速度要比計(jì)算機(jī)傳統(tǒng)的串行口和并口快的多， 所以 USB設(shè)備已經(jīng)廣泛應(yīng)用 。因此本文沒有從復(fù)雜的 USB總線協(xié)議入手，而是選擇了南京沁恒公司出產(chǎn)的 USB接口芯片CH375，其具有內(nèi)置固件模式和可編程的外部固件模式，我們可以跟具需要任意選擇工作模式。 關(guān)鍵詞： 單片機(jī)； CH375； USB；協(xié)議 The Design of the munication between MCU and PC which is based on CH375 Name： Li Xian Major： Electronics Information Science and Technology Tutor： Gong He Abstract: USB device does not require users to install their own set of hardware and software options, and puter transmission speed than the traditional serial and parallel port fast, so USB devices have been widely used. Because of the plexity of the agreement, coupled with embedded system software and hardware resource constraints, in the system to achieve USB host function of many examples is not. This article does not plex starting with the USB bus agreement, but chose Nanjing Heng Qin pany produced the USB interface chip CH375, their model has a builtin firmware and firmware programmable external model, we can with a need for arbitrary Choose the mode of operation. Firmware builtin USB shielding of the relevant agreements, autoplete USB enumeration standard configuration process, which simplifies the microcontroller in the softwar