基于USB的数据采集器

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1、基于USB的数据采集器摘要：针对工业生产的需要，研制了一种基于USB的数据采集器。以微控制器和USB控制器为核心部分，通过二者的结合实现上位机和下位机之间的USB通信，从而可以将采集到的数据通过USB数据线传输给PC机。并开发了PC机上的应用程序，从PC机上的USB数据采集界面，可显示出采集数据的波形图功能，实现数据采集功能。关键词：数据采集USB控制器Abstract:Accordingtoindustrialproductionneeds,developedamethodbasedonUSBdatacollector.Withmicro

2、controllerandUSBcontrollerforthecorepart,throughthecombinationoftworealizePCandlowerlevelcomputercommunicationbetweenUSB,whichcanbethedatacollectedthroughUSBcabletransmissiongivePCS.AndthedevelopmentofthePCapplication,frompc-residentUSBdatacollectioninterface,canshowofthed

3、atagatheringwaveformfigurefunction,realizationofdataacquisitionfunction.Keywords:DataacquisitionUSBcontroller目录1前言...............................................................................................................................................................

4、...................22整体方案设计..................................................................................................................................................................32.1设计思路............................................................................

5、......................................................................................32.2设计方框图..............................................................................................................................................................43数据采集设计............

6、......................................................................................................................................................63.1多路模拟开关的多路选择............................................................................................................

7、....................93.2多路开关原理....................................................................................................................................................113.3A/D转换介绍...................................................................................

8、..............................................................134单片机的介绍..................