《基于ARM的高速高精度数据采集系统设计》-毕业论文（设计）.doc

摘要 PAGE IV 基于ARM的高速高精度数据采集系统设计 摘 要 近年来，随着计算机技术、电子技术等技术的发展，如何对数据进行采集和处理显得越发重要，数据采集的速度和精度是数据采集系统发展的两个主要方向。单片机、ARM、DSP 等各种微处理器的广泛应用，为数据采集系统提供了一个有效的平台。对信号进行高速和高精度的采集以及对采集数据处理的研究和设计是本课题的主要任务。 本文基于ARM7S3C44B0X处理器的高速、高精度、多通道数据采集系统，利用ARM7S3C44B0X丰富的功能接口和较高的工作频率，实现对信号的采集和数据处理的功能。本文介绍了数据采集系统的国内外研究现状和发展趋势，对本系统的主要芯片进行了选型尤其是模数转换芯片AD7663的接口电路。将系统化分成各个功能单元并对各个功能模块进行分析。并提供了原理图和总体电路图，并编写了程序代码，最后提出了关于高速高精度数据采集系统设计的观点。 该系统具有成本低、功耗低、识别性能强及智能程度高等优点，具有较为广阔的应用前景。 关键词：ARM，S3C44B0X，数据采集系统，AD7663 The Design of High speed and High precision Data Acquisition System Based on ARM ABSTRACT In recent years, with computer technology, electronic technology and technology development, how to collect and process the data becomes more important. The speed and accuracy of data collection are the two main directions of the data acquisition system. MCU, ARM, DSP and other microprocessors are widely used provides an effective platform for data acquisition system. High speed and high precision signal acquisition as well as the research and design of collected data is the main task of this project. Based on the ARM7S3C44B0X this paper introduces the design and implement of a high speed，high accuracy，multiple channel data acquisition system. Using rich function interface and higher operating frequency of S3C44B0X achieves signal acquisition and data processing functions. This article describes the research status and development trend of the data acquisition system, selects the main chips of the system and the AD7663 analog digital converter. According to the modular idea, the system is divided several functional units and analyzes each functional module and provides a schematic diagram and general diagram .Some point of view to the design of the high accuracy data acquisition system was put forward at the end of this article. The system has low cost, low power consumption, recognition performance is strong and intelligent degree in higher advantages, which has relatively broad application prospects. KEY