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《【碩士論文】基于定點(diǎn)DSPs的實(shí)時(shí)系統(tǒng)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、武漢理工大學(xué)碩士學(xué)位論文基于定點(diǎn)DSPs的實(shí)時(shí)系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)姓名:胡鵬申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):控制理論和控制工程指導(dǎo)教師:胡榮強(qiáng)2003.5.1武漢理I:人學(xué)碩斗j學(xué)靜論文摘要隧著半導(dǎo)體制造工藝的發(fā)鼴,DSP芯片的功能越束越強(qiáng)大,而隨著DSP運(yùn)算速度的掇離,數(shù)字信號(hào)處淫靜研究重點(diǎn)由最拐靜蔣實(shí)對(duì)斑用轉(zhuǎn)囊了裹速實(shí)嚼戍用。復(fù)雜熟實(shí)鱒應(yīng)耀瓣DSP系統(tǒng)懿硬{牛和軟鋒設(shè)計(jì)提滋了更贏的要求。本文以一個(gè)已經(jīng)完成的潺題為騖景,爨繞定點(diǎn)DSP系統(tǒng)的實(shí)時(shí)性這個(gè)中心,分硬傳和軟件兩大部分進(jìn)褥了探討。在實(shí)時(shí)應(yīng)用中,總是希望處理器能夠盡量嶷速地送行,與其它的處理
2、器相比,DSP的硬件系統(tǒng)設(shè)計(jì)既有熬性。又有自身的特點(diǎn)。論文的硬件部分首先對(duì)幾種容易降低它的性能的應(yīng)用進(jìn)彳亍了探討,對(duì)于與不同速度的器件的接口、與總線分時(shí)復(fù)用的器件的接口以及雙CPU共享存儲(chǔ)器設(shè)計(jì)等三個(gè)閥瓤,提出了相應(yīng)的低成本解決方案。為了提高定點(diǎn)DSP的浮點(diǎn)計(jì)算能力,在硬件設(shè)討翻最后介紹了一個(gè)浮點(diǎn)協(xié)處理器的設(shè)計(jì)方案,它番jFPGAI寬戎,髓夠鬟著魂撬商定點(diǎn)DSP的浮點(diǎn)計(jì)算速度。多任務(wù)程序的維織是復(fù)雜的實(shí)瓣系統(tǒng)藹犒的又一令挑戰(zhàn),在要完成多個(gè)功能露且農(nóng)嚴(yán)格的實(shí)時(shí)性要求熬馕況下,使用逶豢豹稷岸組級(jí)方法綴憨達(dá)到設(shè)計(jì)要求。本文提出了一個(gè)RTOS
3、痰核豹設(shè)摶方案來瓣次這今問題,它實(shí)現(xiàn)了任務(wù)調(diào)度、存{壤管理、任務(wù)通信、中顴管耀、孵鈾服務(wù)等功能。這個(gè)RTOS內(nèi)核的代碼和數(shù)攢結(jié)構(gòu)按Tl公司定點(diǎn)DSP的指令集進(jìn)行了優(yōu)化,以很小管理丌銷為代價(jià),為用戶提供了靈活的編程方式和有效的多任務(wù)管理手段。關(guān)鍵調(diào)iDSP,RTOS,實(shí)辯系統(tǒng),硬件平臺(tái)武漢理I:人學(xué)碩+卜學(xué)何論文AbstractWiththedevelopmentofsemiconductortechnology,thespeedofDigitalSignalProcessor(DSP)hasbecomemoreandmorehighe
4、r.Meanwhile.wjtllthepromotionofperformanceofDSP,theresearchemphasisofdigitalsignalprocessingtransferredfromunreal—timeapplicationtohigh—speedreal—timeapplication.MoreconsiderationonthedesignofhardwareandsoftwareofDSPsystemisrequiredaccordingtocomplexreal—timeapplication
5、.Thisdissertation,takingallaccomplishedprojectasbackgroundandpresentingthemeetingofdeadlineoffixedDSPsystemascenter,researchesintermsofbothhardwareandsoftware.Itisalwaysexpectedthat,inreal-timeapplication,processorsixlnatspeedashighaspossible.Comparedwithotherprocessors
6、,therearenotonlycommonnessindesignofhardwaresystem,butitsowncharacteristics,Thebeginningofhardwarechapterdiscussesmainlyonapplicationthattendstomakespeedlowandputsforwardthelow-costsolutionaccordinglytosuchthreeprobems嬲theinterfacewiththechipsthatrunatdifferentspeed.the
7、chipswithtime·-sharingbusandthedesignofthesharedmemoryinmulti-CPUssystem.Moreover,thedesignoffloating-pointcoprocessor,whichisofferedc0thosesystemsthatarebuiltwithfixedDSPanddemandbetterfloating-pointperformance,isshownattheendofthechapter.It,basedonFPGA,canpromotefloat
8、-pointcalculatingspeedonalargescale.Anotherchallengethatcomplexreal-timesystemisconfrontedwithisrationallyorga