PCI总线插卡及其在虚拟仪器中的应用Ξ

:1000-582X(2002)10-0030-05PCIX,,(,400044):PCI,PCI,PCI,PCIS5933WinDriverPCIDDSPCI,(DDS),,,:PCI;S5933;DMA;DDS;:TH115:A1PCIPC,PCPC,,GUI(GraphicalUserInterface)PC,PCISA,,ISAPCI(PeripheralComponentInterconnect),,,PCI[1](1)PCI,1,33MHz1PCI,32132MBPs(2)PC,PCPCIPCI,,(3)PCI32,64,,PCI,,(4),PCI,(5)PCI,,PCI(1)PCI,ISASTD,(2)PCI,(3),PCI200210Oct.20022510JournalofChongqingUniversityVol.25No.10X:2002-07-01:(1978-),,,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.PCI,PCIPLDPCIPCI,,PCI,PLXTECHPLX90XXAMCCS5933,DSPAMCC32PS59332S5933()2PCIS5933PCI[2,3]2S5933,PCI(PCILocalBus)(ADD-ONDataBus)(Inteli960)(GALCPLDFPGA)AMCCS5933:(Mailbox)(Pass-Thru)(FIFO,),:PCI,PCI,DMAS5933PCIP8EEPROM,,AMCCAMCCPCI3(NVBUILDER),DMA(P)FIFOPDMAFIFOS5933PCIPCI:(1)PCI33MHz,11ns,1.5,S5933PCIPCI1.5(2)PCICMOS,PLCCPQFP,(PCI12V+5V+3.3V)(3)AMCCS59330.01F3PCI,Windows(Windows95P98WindowsNTWindows2000),4(RING0RING3),3,0PCPCI[4]:DeviceDriverKit(DDK)NumegaVTOOLSDJUNGOWINDRIVERWINDRIVERWINDRIVER(.vxd,KERNELDRIVER),windrvr.sysPCIPISAPUSB,,AMCCS5933132510:PCI©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.AMCCLIB.C,PCI,DMA,FIFODMA,DMA,,,DMA34PCI,,411DDS(DirectDigitalSynthesizer)DDS4,(),,ROM()[5]3DDS,,ROMRAM,(DSPCPU)RAMRAMPCI,DDS,5,41111,,,,,PCIDPA,41112fclk,qfout,mq=mfoutPfclkf=fmin=fclkPm,,,r(DPA),41113,,w:w=mP36041114,,DPA,DPA(MAX7224)DPAVref,4DDS232002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5412S5933,FIFODMA,(DAC)GAL(DAC)66FIFO413,,1M,,1M(),,DMA,DMA,,;,DAC,,[7]414,:8MHz,:5V,0.1500kHz,0.1Hz.DDS,,PCI,DMA,[6]:[1]SHANLEYTOM,ANDERSONDON.PCI[M].:,20001[2]APPLIEDMICROCIRCUITSCORPORATION.S5933PCIControlDataBook[M].SanDicgo:AMCC,1996.[3],,.PCI[J].,2000,15(2):240-244.[4],,,.PCI[J].2000.15(3):367-372.[5],,.[J].(),1999,3(3):24-28.[6],,.[J]..1999,10(1):71-76.[7].VisualC++[M].:,20001332510:PCI©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.PCIBusCardandItsApplicationsintheVirtualInstrumentZHOUChuan2de,TANGBao2ping,QINShu2ren(CollegeofMechanicalEngineering,ChongqingUniversity,Chongqing400044,China)Abstract:ThispaperanalysesthePCIbusfeatures,andintroducesseveraldevelopingtollsandthetechniques,includingPCIcontrollerIC,driverdevelopmentsoftwareandthekeypointsofdesigningPCIcardswiththemainfocusonIC2S5933anddriverdevelopmentsoftware2WinDriver.Anexampleinthevirtualinstrument-arandomsignalgenerator,consistingofPCIcardandsoftware,isalsogiven.DDSisrealizedbysoftware,throughthehightransferspeedofPCIbus.Thesignalgeneratorcanproducesin,noise,frequencysweepandotherscomplexwaves.Itcanbeusedtoadjustthewave,frequency,amplitude,phaseandprecisionconvenientlyandaccurately.Keywords:PCIbus;S5933;DMA;DDS;randomsignalgenerator()(19)InfluenceofPreparationConditionofWater2BasedMagneticNanoparticlesforDrug2CarrieronitsPropertiesLIULi2ping1,2,LIPing1,WUZe2zhi1,CAIShao2xi1,GULi1(1.CollegeofBioengineering,ChongqingUniversity,Chongqing400044,China;2.CollegeofChemistryandChemicalEngineering,ChongqingUniversity,Chongqing400044,China)Abstract:Thepurposeofthepresentstudyistopreparethegoodbiocompatibilitymagneticnanoparticlesthatisusedascarrieroftargetingdrug.ThetechnologyofstirringprecipitationandultrasonicdispersionareusedtosynthesizemagneticnanoparticlesunderstableagentwithPEG-4000.Thefactorsaffectingthepropertiesofmagneticfluidareanalyzed.Underawell-controlledpreparationcondition2concentionofreaction0.24moldm-3,pH1011,=50,time2030min,PEG-400010%andstirringspeed25003000rPmin,wegetmagneticfluidsdispersedinwater.Gouymagneticbalanceisusedtodetermineitssaturationmagnetizationof36.2103APm(m=0.08).Scanningtunnelmicroscopeshowsthattheparticlesareroundedandsizerangeof(8010)nm.Themagneticfluidexhibitsexcellentstabilityandmagneticrespond.Keywords:magneticnanoparticles;saturationmagnetization;stability()432002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.