基于STM32单片机的多路数据采集系统设计TheDesignOfMulti-channelDataAcquisitionSystemBasedOnSTM32中国地质大学（北京）指导教师王猛、张启升组员：李金泽1010102124梁迪1010102110张永10101021202013.3.31I摘要本文是基于ARMCortex-M3的STM32系列嵌入式微控制器的应用实践，介绍了基于STM32单片机的数据采集的硬件设计和软件设计，数据采集系统是模拟域与数字域之间必不可少的纽带，它的存在具有着非常重要的作用。本文介绍的重点是数据采集系统，而该系统硬件部分的重心在于单片机。数据采集与通信控制采用了模块化的设计，数据采集与通信控制采用了单片机STM32来实现，硬件部分是以单片机为核心，还包括A/D模数转换模块，显示模块，和串行接口部分。该系统从机负责数据采集并应答主机的命令。输入数据是由现场模拟信号产生器产生，8路被测电压再通过模数转换器ADC0809进行模数转换，实现对采集到的数据进行模拟量到数字量的转换，并将转换后的数据传输到上位机，由上位机负责数据的接受、处理和显示，并用LCD数码显示器来显示所采集的结果。软件部分应用KeiluVision4通过C++编写控制软件，对数据采集系统、模数转换系统、数据显示、数据通信等程序进行了设计。关键词：数据采集89C52单片机ADC0809KeiluVision4IIAbstractThisarticleisanapplicationofSTM32seriesembeddedARMcontrollerbasedonCortex-M3anditdescribesthehardwaredesignandsoftwaredesignofthedataonwhichbasedonsignal-chipmicrocomputer.Thedatacollectionsystemisthelinkbetweenthedigitaldomainandanalogdomain.Ithasanveryimportantfunction.Theintroductivepointofthistextisadatatocollectthesystem.Thehardwareofthesystemfocusesonsignal-chipmicrocomputer.Datacollectionandcommunicationcontrolusemodulardesign.Thedatacollectedtocontrolwithcorrespondencetoadoptamachine8051tocarryout.Thepartofhardware’scoreisSTM32,isalsoincludesA/Dconversionmodule,displaymodule,andtheserialinterface.Slavemachineisresponsiblefordataacquisitionandansweringthehostmachine.8roadsweremeasuredtheelectricvoltagetopasstheingeneralusemold-fewconversionofADC0809,therealizationcarriesontheconversionthatimitatestomeasurethenumeraltomeasuretowardsthedatathatcollect.Thensendthedatatothehostmachine.thehostmachineisresponsiblefordataanddisplay,LEDdigitaldisplayisresponsibledisplaythedata.ThesoftwareispartlyprogrammedwithC++oftheKeiluVision4.Thesoftwarecanrealizethefunctionofmonitoringandcontrollingthewholesystem.Itdesignsmuchprogramlikedata-acquisitiontreatment,data-displayanddata-communicationect.IIIKeyword:dataacquisitionAT89C52ADC0809KeiluVision4目录第一章绪论...................................................................................................................11.1研究背景及其目的意义..................................................................................11.2国内外研究现状.............................................................................................21.3该课题研究的主要内容内容.........................................................................3第二章数据产生..........................................................................................................42.1现场模拟信号产生器.....................................................................................42.2基于LM331的电压频率转换.........................................................................42.3基于LM331的频率电压转换.........................................................................5第三章数据采集........................................................................................................73.1数据采集系统...................
