資源描述:
《【碩士論文】基于ARM和FPGA的嵌入式開(kāi)發(fā)平臺(tái)設(shè)計(jì)與實(shí)現(xiàn).pdf》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在教育資源-天天文庫(kù)。
1、摘要隨著計(jì)算機(jī)技術(shù)、網(wǎng)絡(luò)技術(shù)和微電子技術(shù)的深入發(fā)展,嵌入式系統(tǒng)在各個(gè)領(lǐng)域中得到廣泛應(yīng)用。以ARM和以FPGA為核心的嵌入式系統(tǒng)是當(dāng)前嵌入式研究的熱點(diǎn),而相關(guān)研究的開(kāi)展需要功能強(qiáng)大的開(kāi)發(fā)平臺(tái)支持,因此基于ARM和FPGA的開(kāi)發(fā)平臺(tái)設(shè)計(jì)研究具有重要意義。本文分別設(shè)計(jì)了一款基于PXA270的ARM開(kāi)發(fā)平臺(tái)和一款基于Virtex5的FPGA開(kāi)發(fā)平臺(tái),主要針對(duì)電源管理、接口設(shè)計(jì)、板級(jí)時(shí)序等關(guān)鍵技術(shù)進(jìn)行了研究。在此基礎(chǔ)上利用PADSLogic設(shè)計(jì)工具完成了系統(tǒng)原理圖設(shè)計(jì),并借助HyperlynxSI仿真工具,對(duì)PCB的板級(jí)設(shè)計(jì)問(wèn)題進(jìn)行了分析
2、,實(shí)現(xiàn)了平臺(tái)PCB的可靠設(shè)計(jì)。最后對(duì)平臺(tái)各模塊進(jìn)行了調(diào)試,通過(guò)在平臺(tái)上運(yùn)行操作系統(tǒng)并加載可執(zhí)行程序的方法驗(yàn)證了平臺(tái)整體功能。本文的特色體現(xiàn)在以下三個(gè)方面:(1)結(jié)合PXA270處理器內(nèi)部的電源管理單元和MAXl586A集成電源管理芯片,實(shí)現(xiàn)了PXA270開(kāi)發(fā)平臺(tái)的動(dòng)態(tài)電源管理,有效降低了平臺(tái)功耗;(2)平臺(tái)實(shí)現(xiàn)了FF/BT/STUART、USBHost/Client、SD/MMC、AC’97、LCD和擴(kuò)展VGA、PCMCI~CF等多種接口,具有良好的開(kāi)發(fā)靈活性和通用性;(3)對(duì)開(kāi)發(fā)平臺(tái)PCB板級(jí)走線中可能出現(xiàn)的反射、串?dāng)_、時(shí)序沖
3、突等問(wèn)題進(jìn)行評(píng)估,給出了布線約束方案,使系統(tǒng)可靠性得到有效提高。關(guān)鍵詞:PXA270:Virtex5;高速PCBABSTRACTWiththedevelopmentofcomputertechnology,networktechnologyandmicroelectronictechnology,theembeddedsystemhasbeenwidelyusedinvariousoffields.Currently,ARM—basedandFPGA—basedsystemhasbecomethehotspotincurrent
4、embeddedsystemreseacharea,andtherelevantresearchesrequirethesupportofapowerfuldevelopmentplatform.So,itissignificantandmeaningfultodesignandresearchtheARM—basedandFPGA—baseddevelopmentplatform.ThispaperdesignsonePXA270-basedARMdevelopmentplatformandoneVirtex5-basedFP
5、GAdevelopmentplatform.a(chǎn)ndtheymainlyfocusontheproblemofpowermanagement,interfacedesign,board—leveltiming.WecompletethesystemschematicandPCBdesigninPADStools,andbymeansofrunningtheoperatingsystemontotheplatformandloadingexecutableprocedures,weverifytheoverallfunctional
6、ityoftheplatformsuccessfully.Thecharacteristicsofthispaperareasfollows:(1)CombinethepowermanagementunitofPXA270processorwiththeMAX1586Aintegratedpowermanagementchip,thedynamicpowermanagementofPXA270developmentplatformhasbeenaccomplished,andmakethepowerconsumptionbeen
7、reducedeffectively.(2)ImplementtheFF/BT/STUART,USBHost/Client,SD/MMC,AC’97,PCMCIA/CF,LCDandVGAinterfaces,andtheplatformwillhaveabeaerperformanceofflexibilityandversatilityforfutureresearch.(3)Simulateandanalyzethereflection,crosstalk,board—leveltiminginPCBdesignproce
8、ss,giveouttheroutingconstraintsmethodtoimprovethesystem’Sreliability,moreeffectively.KeyWords:PXA270;Virtex5;High—speedPCB辯1帛蚺論第1童緒