基于ARM的嵌入式数据采集系统的研究(3)
时间:2026-01-22
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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