基于s3c44b0x和uclinux的pda設計研究

1、華中科技大學碩士學位論文基于S3C44B0X和uClinux的PDA設計研究姓名：吳旭申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：屈萬里20050430華中科技大學碩士學位論文ABSTRACTPDAisasortofdigitalproductiondevelopedusingmodemcomputertechnologyIthasbecomeasortoffashionproductionforithasstrongfunctio

2、ns，tinyvolumeandiseasytOcarryaboutButinrecenttwoyears，thesalesmountofPDAisdecreasingHavinganalyzedthemarketIbelievethereasonis：thepriceofhigh—gradePDAsisSOhighthatfewpeoplebuythem；thefunctionoflow—gradePDAsistoopoortosar

3、isfyconsumersThereasonintechnologyis：thehardwarecostofahighgradePDAistOOhighforitshighCPUfrequencyandstrictelectricalcircuit；thesoft：warecostofusingWinCEasoperationsystemItneedsasortofproductionwhichhasstrongfunctionsand

4、lowpricetOexpandthepopularmarket，SOIdesignedthisPDAInhardware，theARM7CPUwhichhashighfrequencycanmeetthedemandsofpopulardemandsThisPDAselectsS3C44BOXproducedbySamsungcorporationasCPUandhasRAM，ROM，keyboard，serialport，netwo

5、rkport，USBport，LCDscreenwhichhas240X320pixelsand16levelgreyItmeetthepopulardemandsandcostlowInsoftware，uCIinuxwhichopenssourcecodeisselectedasoperationsystemApplicationprogramsaredesignedonuClinuxSothecostofsoftwareislow

6、ThefirstworkofthistaskisportinguClinuxonPDAafteranalyzedtheprinciple，ThecourseofportmustaccordtocertainstepsandsomefilesinsourcecodemustbemodifiedaccordingtothehardwareofPDAThedriverdesignofvariousdevicesisthekeyinportin

7、gcourseBecausecomputerhardwareisdevelopinginhighspeed，therearemanysortofdevicesappeared，SOthedevicedriversbecomemoreandmorecomplicatedHavinganalyzedtheprinciple，Idesignedthedriversofkeyboard，12Cbusanddevices，LCDscreen，NA

8、NDFLASHROM，USBport，IISport，serialportandnetworkportHavingporteduClinuxonPDA，IportedMicrowindowsonitMicrowindowsisaGUIonuClinuxandothermicrocontrolsystemIt’SthebaseofgraphicapplicationHavinganalyzedtheprinciple，Microwindo