基于ARM的嵌入式数据采集系统的研究(3)

时间:2026-01-22

d:\My Documents\复件 pdf\FPGA

Abstract

Withtherapiddevelopmentoftechnology,thedemandsondataacquisition(DAQ)areenhanced:notonlyforhigh-spced,high-accoracyandmal time,butalsofor

intelligence,aswellasaportabili吼networkingandformfriendlyman-machineinterface.Thetraditional8/16bitsprocessorisfar

ortheserequirementsbecauseofrestraintsofresource.Ontlleotherhand.PCI

somedefectssuchasISADAQcardshavecomplexity,expenso,electromagne血mdisturbance,ete.

oneEmbeddedsystemisoftheleading.edgetechnologiesnowadays,Itcanbeusedtoenhance

real-timafeature

ofembeddedandflexibilityofsystem,soastomeettheincreasingmeasurementneeds.Thestudyacquisitionsystembased

tothedataonARMF15issuchacase.Accordingrequirementsofload-testingvehiclemcasorcment&control

system,consideringgeneralityandexpansibility,amodularized,scalableembeddedDAQsystemwithahighperformance-costratioisbrought

weextendedout.ARMprocessorandFPGAareusedasitshardCOre,fromhasfunctionswhichUART,LCD,A/D'USB,ere.The

firstly,then

onsystemincludingdataforkindsaequisitiort,stomge,displayandtransmission.Insoftwaredasign,devicedriversmodulesweIBwrittensystem.was

accordingtouC/OS.1l,whiehishardwareaofpc唧beralreal-tin*preemptivemultitaskingoperatingontransplantedtheplatform.BaseduC/OSqI,multitaskWasdesignedrequirementsoftheproject.

logicreSOUl-CesUsingFPGA,whichhasabundant

parallelandasophisticatedabilityofhigh-speedcalculation,reducestheburdenofCPUandthequantityofinterfaceunits,aswellas

Onenhancesreduce

the

alsoexpansibilityandthecomplexitymaintenanceofsoflcwareofthesystem.Buildingsoft'wRreplatformbasedRTOScandesign,illaprovethereal-timeCannotfeatureandflexibility,shortenCandevelopingperiodaswell.ThesystemonlybeusedforF15load-testingvehicle,but

beusedforotherDAQapplications.

Experimentsinlabindicatesthatthesystemworksstablyandcredibly,andreachestheexpectede他ct

Keywords:dataacquisition,embeddedsystem,ARM,FPGA,multitaskIII

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