1、河北工業大學碩士學位論文基于USB的數據采集系統的研究與設計姓名：賈寶金申請學位級別：碩士專業：通信與信息系統指導教師：王寶珠20071101河北工業大學碩士學位論文 基于USB的數據采集系統的研究與設計 摘 要 數據采集技術是以傳感器、信號測量與處理、微型計算機等技術為基礎而形成的一門綜合應用技術，主要研究信息數據的采集、存儲、處理以及控制等，涉及模擬信號調理、模擬信號數字化、數字信號處理等，具有很強的實用性。USB技術以其支持熱插拔和即插即用、占用系統資源少等特點迅速得到了廣泛的應用。USB2.0憑借其480Mbps的理論傳輸速度，更是得到了人們的青睞。 論文基于課題的研究內容，給出了一種

2、用 USB2.0 總線技術解決數據采集系統接口問題的實施方案。文中首先深入研究了USB的體系結構，然后結合提出的方案，較為全面地介紹了系統的硬件和軟件設計。其中硬件部分具體描述了 USB2.0控制器CY7C68013和模數轉換芯片MAX125的接口設計，同時也給出了各種電源轉換的實現方法。在軟件部分，通過分析EZ-USB的固件編程框架，闡述了CY7C68013在GPIF工作模式下的波形設計過程及其數據通信流程；驅動程序是系統硬件和客戶應用程序之間通信的橋梁，文中介紹了 USB的WDM功能驅動程序設計過程；最后，設計了數據采集和保存的應用程序，并對其功能做了解釋。 論文所設計的基于USB2.0總

3、線技術的數據采集系統具有14位分辨率，單通道250KHz采樣頻率和30Mbps傳輸速率。系統不僅實現了數據的采集、傳輸和保存數據的功能，并且具有熱插拔、即插即用、便攜式的特點，達到了預期的效果。 關鍵詞：數據采集，USB2.0， CY7C68013，MAX125，驅動程序 i基于USB的數據采集系統的研究與設計 RESEARCH AND DESIGN OF DATA ACQUISITION SYSTEM BASED ON USB ABSTRACT Data acquisition technology is a synthetical application technology based

4、on technologies of sensor, signal measure and disposal and computer, and it studies on data acquisition，memory, disposal and control, etc., it includes analog signals modulation, analog signals digitalization, digital signal processing and so on, so it is greatly useful. USB (Universal Serial Bus) t

5、echnology is widely used because of the attributes of hot-plug-in, plus-and-play, engrossing less system resource. The USB2.0 has been paid much attention depending on the theory transfer rate of 480Mbps. Based on the research, the solution to the data acquisition system was put forward with the USB

6、2.0 technology in the paper. With the analysis on the subject, the architecture of the USB was deeply analyzed firstly, and according to the scheme of the data acquisition system, the detailed hardware and software design was introduced. In the hardware section, the interface between the CY7C68013GP

7、IF (General Programmable Interface) and the A/D converter was introduced, and the various DC-DC circuit were embodied. In the software section, the “wave descriptor” and the whole communication process of CY7C68013 in the GPIF master mode were expounded; and the testing result of the firmware was li

8、sted at the end of the firmware part; Function driver is the bridge between hardware and host software, and the design process of the WDM (Windows Driver Mode) driver for the USB was introduced here; Finally the application software used to exhibit the curves and save data was designed, and the functions of the software were also explained. The data acquisition system based on the USB 2.0 technol