基于MCF52223 USB数据采集系统的实时性研究  

ON REAL-TIME PERFORMANCE OF MCF52223-BASED USB DATA ACQUISITION SYSTEM

作　　者：屯娜[1] 王宜怀[1] 王玉丽[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006

出　　处：《计算机应用与软件》2011年第1期26-28,43,共4页Computer Applications and Software

基　　金：国家自然科学基金(60871086)

摘　　要：详细分析了基于USB传输的数据采集系统的实时特性。针对实时工业控制环境,研究了采用32位微处理器MCF52223进行AD采集,并通过USB总线通信方式向PC机传送AD数据的多路数据采集系统的实时特性,并从软件滤波、数据传输等方面提出了提高系统实时性的有效方法,最后较为具体地给出了MCU方和PC方的编程方法。This paper analyses real-time performance of USB-based data acquisition system in detail.In particular,for real-time industrial control field,we focus on the real-time performance of multi-channel data acquisition system which uses 32-bit microcontroller MCF52223 for AD acquisition and transmits AD data to PC with USB bus communication pattern.The effective method for enhancing system real-time ability is raised from the aspects of software filtering and data transfer.The detailed programming solution is also given on both MCU and PC at last.

关 键 词：AD转换 实时性 USB2.0通信 MCF52223 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]