A microcontroller based data acquisition system with USB interface

International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. Pub Date : 2004-09-05 DOI:10.1109/ICEEC.2004.1374422

M. Popal, M. Marcu, A. Popa

引用次数: 9

Abstract

A wide-spread operation founded in the monitoring, control and command applications is the data acquisition. The data from the external world is read, processed, used for decisions and, eventually, memorized by a digital system. The digital system may be a PC with dedicated interfaces or microcontroller based system. This paper describes a data acquisition system with USB inteijace. I t is based on the P89C51RD2 microcontroller. The USB interface is achieved by an ISPI181 circuit and the data acquisition is done by two TLCO820 analog digital converters. The software executed by the microcontroller was divided in 5 levels: the 0 hardware abstraction level, the 1 hardware abstraction level, the interrupt service routine, the standard USB requests level and the main loop, each one with specific operations.

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基于单片机的USB接口数据采集系统

数据采集是建立在监视、控制和指挥应用中的一种广泛的操作。来自外部世界的数据被读取、处理、用于决策，并最终被数字系统记忆。数字系统可以是具有专用接口的PC机或基于微控制器的系统。介绍了一种基于USB接口的数据采集系统。它是基于P89C51RD2单片机。USB接口由ISPI181电路实现，数据采集由两个TLCO820模拟数字转换器完成。单片机执行的软件分为5层:0硬件抽象层、1硬件抽象层、中断服务程序、标准USB请求层和主回路，每层都有具体的操作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.

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