[優(yōu)秀畢業(yè)設(shè)計(jì)精品]基于單片機(jī)的氣體泄漏超聲波檢測(cè)系統(tǒng)的設(shè)計(jì)

I目錄A1A2A0A3A4A5A6A7A8A9A10A11A12A13A11A12PCBA14A15A0A3A4A5A6A7A8A9A10A16A17A18A17A19A20A21A22A23A24A25A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A36A37A26A38A19A20A21A23A24A39A40A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A36A37A26A41A19A20A21A22A42A43A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A44A45A46A44A45PCBA47A48A49A50A51A52A48A49A51A52A53A54A55A56A57A58A59A60A61A62A63A64A65A66A67A68A69A70A71A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A72A73A74A74A75A76A77A78A79A75A76A78A79A75A78A79A80A80A62A63A64A63A66A67A68A69A81A82A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A72A73A74A74A75A76A77A78A79A75A76A78A79A75A78A79A80A80A83A84A85A83A84PCBA86A87A88A89A87A88A90A91A92A93A94A95A96A97A98A99A100A101A102A103A104A105A106A107A108A109A110A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A112A113A114A114A115A116A117A118A119A115A116A118A119A115A118A119A120A120A121A122A111A123A124A125A126A127A128A129A130A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A112A113A114A114A115A116A117A118A119A115A116A118A119A115A118A119A120A120A131A132A133A131A132A134A135A136A137A138A139A135A136A137A138A140A141A142A143A144A145A146A147A148A149A150A151A152A153A154A155A156A157A158A159A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A149A150A151A169A153A154A155A156A157A170A171A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A149A150A151A150A172A154A155A156A157A173A174A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A175A176A177A175A176A178A179A180A181A182A183A184A179A180A181A182A183A184A185A186A187A188A189A190A191A192A193A194A195A196A197A198A199A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A200A201A202A202A203A204A205A206A207A203A204A206A207A203A206A207A208A208A209A210A211A212A211A212A213A214A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A224A225A215A226A227A228A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A224A225A215A229A230A231A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A232A233A234A232A233A235A236A237A238A239A240A236A237A239A240A241A242A243A244A245A246A247A248A249A250A251A252A253A254A255A53A0A1A2A3A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A8A4A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A12A13A14A15A59A17A18A19A20A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A21A22A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A12A13A14A23A61A24A25A26A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A21A22A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A27A52A28A29A30A31A32A33A34A35A36A37A54A55A38A39A40A41A42A43A44A45A46A56A57A47A58A38A39A40A41A42A43A44A45A461摘要隨著工業(yè)的發(fā)展，各種氣體包括易燃易爆、有毒氣體的種類和應(yīng)用范圍都得到增加，傳統(tǒng)的氣體泄漏檢測(cè)方法，如壓差法、氣泡法等，有其局限性，不僅操作復(fù)雜，對(duì)技術(shù)人員要求較高，而且不具有實(shí)時(shí)性。迫切需要各種方法簡(jiǎn)單，準(zhǔn)確性可靠的檢測(cè)方法。本文介紹了一種氣體泄漏超聲檢測(cè)系統(tǒng),在分析小孔氣體泄漏產(chǎn)生超聲波的原理的基礎(chǔ)上,闡述了該檢測(cè)系統(tǒng)的原理及設(shè)計(jì)方案。該系統(tǒng)能對(duì)各種壓力容器的孔隙泄漏所產(chǎn)生的微弱超聲信號(hào)進(jìn)行精確檢測(cè)。該系統(tǒng)利用技術(shù)對(duì)泄漏所產(chǎn)生的超聲波信號(hào)進(jìn)行分析處理和聲壓級(jí)計(jì)算,從而實(shí)現(xiàn)對(duì)泄漏的檢測(cè)及泄漏G18339的G1284算。G17902G17819超聲波檢測(cè)，G8503確G3332G2040G7041和G4462G1313產(chǎn)生泄漏G1313G13634，對(duì)G1122G6564高G1237業(yè)的生產(chǎn)G6940G10587，G14422G13434能G9316，確G1457G4445G1852具有G18337G3835G5859G1053。G3在G17902G17819對(duì)超聲波性G17148的G11752G12362G1025，G6117G1216發(fā)現(xiàn)超聲波G7171一種高G20069G11713波，G5194且G4439在G12366氣G1025傳G6785具有G5468G5390的方G2533性?；鵊1122G8504G10317性，G6117設(shè)計(jì)了一G3883超聲波檢測(cè)G11017G17347，該G11017G17347包括了G8181G6323G11017G17347G994G6980G4395G11017G17347，其G1025G8181G6323G11017G17347包G2559了信號(hào)G6930G3835G11017G17347和G19911G20069處理G11017G17347G727G6980G4395G11017G17347G11013單G10267G7438和LCD、G19202G11436等G3818圍設(shè)G3803G13464G6116。在對(duì)超聲波信號(hào)的處理的G17819G12255G1025，信號(hào)G13475G17819G6930G3835G9400波G1209G2530，一G17347G1144G13485單G10267G7438處理，G5194在G7186G12046G4643上G16847G1998信號(hào)的G5390G5242G994G8981G17907G727G2490一G17347G17902G17819G19489G20069G17728G2282G1038可G2560聲，從而實(shí)現(xiàn)檢測(cè)的G11458的。關(guān)鍵詞單G10267G7438G727聲壓級(jí)G727本G5225G3134聲G727泄漏超聲波2第一章引言傳統(tǒng)的泄漏檢測(cè)方法G7171G4570G5465測(cè)G10301G2709G1817G1849G8712G6122其G4439介G17148，G17902G17819G16278G4531，測(cè)G18339在G10317G4462時(shí)G19400G1881G1817G1849介G17148的G1955G4581G18339G11如G17902G17819檢測(cè)G9094G19766的G19489G1314等G12G7481實(shí)現(xiàn)的，G17837G7171一種G11464G6521的測(cè)G18339方G5347。基G1122G17837種方法G2460G8978生G1998G2490一種方法，G2375G4570G5465測(cè)G10301G2709G1817G1849一G4462壓力的氣體介G17148G11G17902G5132G1038壓G13565G12366氣G12，而G2530G13634G8712G1025G16278G4531，G1209G15999測(cè)G10301G2709G2620圍G7171G2554產(chǎn)生氣泡作G1038G7171G2554泄漏的G7643準(zhǔn)。G3隨著技術(shù)的進(jìn)G8505及檢測(cè)方法的G6925G2904，所G16871“絕對(duì)不漏”G6122“無泄漏”只G7171一個(gè)G6980G18339上的概念，G17837一G16278念，已G15999人G1216所G6521受。G2040別一個(gè)測(cè)G18339G10301G2709漏G6122者不漏需要一個(gè)更G1038準(zhǔn)確的、G6980G18339上的G7643準(zhǔn)，G10317別G7171對(duì)一些需測(cè)G18339微小泄漏的場(chǎng)合。G3泄漏檢查儀的G1998現(xiàn)G1038G1209上問題G6564供了一個(gè)較好的解決辦法，G4439使得泄漏檢測(cè)G17819G12255更加便捷，測(cè)G18339結(jié)果也更G1038可靠。在采用泄漏檢查儀的基礎(chǔ)上，再輔G1209上、下料G7438構(gòu)、自動(dòng)密封裝G13634及G11017氣控制、G9094壓、氣動(dòng)系統(tǒng)等等G2375可G13464G6116一個(gè)可用G1122加工生產(chǎn)線上的泄漏檢查設(shè)G3803試漏G7438。試漏檢查儀的G1998現(xiàn)使得零部件的泄漏在線檢測(cè)G6116G1038可能，采用G17837種裝G13634可滿足批G18339生產(chǎn)G1025對(duì)零部件泄漏情況檢測(cè)的要求，G3835幅G6564高產(chǎn)G2709的G2709G17148G17148G18339。G3本課題主要設(shè)計(jì)一種氣體泄漏檢測(cè)系統(tǒng)。G311方案的選擇與論證111方案一1絕對(duì)壓力法G3絕對(duì)壓力法測(cè)G18339系統(tǒng)如圖11所G12046，G11013氣G9316、G12366氣G17819G9400器、壓力表、G1817氣閥、壓力傳感器等部分G13464G6116。測(cè)G18339G17819G12255如下G3G3圖11G3絕對(duì)壓力法測(cè)G18339原理G3G1817氣G1817氣閥開啟，G2533G5465測(cè)件G1881G1817G1849規(guī)G4462壓力的氣體G727G3穩(wěn)G4462G1817氣閥關(guān)閉，G13475G17819一G4462時(shí)G19400G2530使得G1817G1849氣體達(dá)到一個(gè)測(cè)G18339所必須的穩(wěn)G4462狀態(tài)。壓力傳感器G4570穩(wěn)G4462階段結(jié)束G11測(cè)G18339階段開始G12前的壓力值設(shè)G4462G1038一個(gè)測(cè)G18339的零點(diǎn)G727G3測(cè)G18339在規(guī)G4462的測(cè)G18339時(shí)G19400G1881，檢測(cè)系統(tǒng)檢G1998壓力的變G2282值P，G994設(shè)G4462的壓力變G2282極3限值進(jìn)行比較，從而做G1998合格G6122不合格的G2040G4462G727G3排氣測(cè)G18339結(jié)束G2530G4570測(cè)試件G1881部氣體排G1849G3835氣G1025。G3典型的測(cè)G18339壓力時(shí)G19400之G19400關(guān)系如圖12所G12046。G3G3圖12G3測(cè)G18339壓力時(shí)G19400曲線G3112方案二壓差法測(cè)G18339原理見圖13。壓差法測(cè)G18339G17819G12255G994絕對(duì)壓力法相似，G994絕對(duì)壓力法不同之處在G1122壓差法采用一個(gè)參考件加G1849測(cè)G18339系統(tǒng)G1025，用壓差傳感器記錄測(cè)G18339階段測(cè)G18339件G994參考件之G19400的壓力變G2282值P。G3A48A49A50A51A60A62A63A64A65A66A67A48壓差法G994絕對(duì)壓力法類似，都G7171G17902G17819測(cè)G18339壓力變G2282值G19400G6521G3332測(cè)G18339泄漏G10587值。G3113方案三超聲波檢測(cè)原理G7171利用超聲波勻G17907傳G6785且可G1209在金屬表G19766發(fā)生部分反射的G10317性，G7481進(jìn)行管道探傷檢測(cè)，G4439G17902G17819G11017子裝G13634，發(fā)送G1998超聲波的高G20069（G3835G112220KHZ）脈沖，射到管壁上。反射回的超聲波，再G17902G17819傳感器（探G3848）G6521G6922回G7481，G13475G17819信號(hào)G6930G3835，G7186G12046G1998G7481波G5430。G11013G1122不同部G1313處反射到探G3848上的G17329G12175不同，G3252而超聲波G17832回的時(shí)G19400也不同。檢測(cè)器的G6980G6466處理單G1815便可G17902G17819計(jì)算探G3848G6521G6922到的G1016G13464反射波的時(shí)G19400差G1068G1209超聲波傳G6785的G17907G5242，得G1998管道的實(shí)G19481壁G2414。G17837G7691，G7094可G6365G10043時(shí)G19400差G7186G12046G1998的波G5430，G7693G6466G7643G4462，測(cè)G18339G1998管壁G2414G5242G6122G13582G19531G1209及G14116G15444G4622G4556等。G3G11013G1122傳統(tǒng)的泄漏檢測(cè)方法如絕對(duì)壓力法、壓差法、氣泡法等,操作復(fù)雜G5194且對(duì)技術(shù)人員要求較高,而且不具有實(shí)時(shí)性。G11458前,工業(yè)上G5203G8879利用泄漏產(chǎn)生超聲波的原理G7481進(jìn)行泄漏檢測(cè)。利用超聲波檢測(cè)氣體泄漏G1313G13634,不僅方法簡(jiǎn)單,而且準(zhǔn)確可靠?；鵊1122G8504,本文G11752G12362G5194設(shè)計(jì)了一種超聲波氣體泄漏檢測(cè)系統(tǒng)。G34第二章氣體泄漏檢測(cè)的設(shè)計(jì)原理21氣體泄漏產(chǎn)生超聲波如果一個(gè)容器G1881G1817滿氣體,G5415其G1881部壓G5390G3835G1122G3818部壓G5390時(shí),G11013G1122G1881G3818壓差較G3835,一G7098容器有漏孔,氣體G4613G1262從漏孔沖G1998。G5415漏孔G4622G4556較小且G19659G16846G6980較高時(shí),沖G1998氣體G4613G1262G5430G6116G9249G8981,G9249G8981在漏孔G19480G17829G1262產(chǎn)生一G4462G20069G10587的聲波,如圖21所G12046。聲波G6403動(dòng)的G20069G10587G994漏孔G4622G4556有關(guān),漏孔較G3835時(shí)人G13831可G2560到漏氣聲,漏孔G5468小且聲波G20069G10587G3835G112220G78HZ時(shí),人G13831G4613G2560不到了,G1306G4439G1216能在G12366氣G1025傳G6785,G15999G12228作G12366G17745超聲波。超聲波G7171高G20069G11713波信號(hào),其G5390G5242隨著G12175開聲G9316G11漏孔G12G17329G12175的增加而G17817G17907G15940G1955。G3252G8504,超聲波G15999G16760G1038G7171一種方G2533性G5468G5390的信號(hào),用G8504信號(hào)G2040G7041泄漏G1313G13634相G5415簡(jiǎn)單。G3圖21氣體泄漏產(chǎn)生超聲波22聲壓與泄漏量的關(guān)系泄漏超聲本G17148上G7171G9249G8981和沖G1999G3134聲。泄漏G20559點(diǎn)壓力PG994泄漏孔G2487G11464G5464G39決G4462了G9249G8981聲的聲壓級(jí)G47。G14891G2529G4410者G20544G3835G10507G6957G6492G6524G1998如下G1856G5347G621G64G29G340220008020LOG10LOG05DPPLDPPP020DBPA（21）G5347G1025,G47G1038G3414G11464方G2533G17329G12175G2955G24871G80處的聲壓級(jí)G11單G1313G29G71G37G12G30G39G1038G2955G2487G11464G5464G11單G1313G29G80G80G12G30G390G7291G80G80G30P0G1038G10627G3671G3835氣絕對(duì)壓力G30PG1038泄漏孔G20559壓。G3G11013G8504可G11705,G3在G994泄漏孔的G17329G12175一G4462時(shí),泄漏超聲的聲壓級(jí)G7171隨泄漏孔G4622G4556和系統(tǒng)壓力的變G2282而變G2282的。泄漏產(chǎn)生的超聲波G20069G5114比較G4497,一G14336在20G78HZ到100G78HZ之G19400。在不同的G20069G10587點(diǎn),超聲波的能G18339G7171不同的。實(shí)G19481上,G4439的G20069G16901G4804值也G7171隨泄漏孔的G4622G4556和壓力的變G2282而變G2282的。比如G29在一G4462的泄漏孔G5464和壓力下,如果A68A69A70A71A72的G20069G16901G4804值G7171在3G27G78HZ點(diǎn),G18039G1052加G3835孔G5464G1209G2530G4439的G20069G16901G4804值可能G1998現(xiàn)在3G25G78HZ點(diǎn)G30如果孔G5464不變,加G3835系統(tǒng)G1881G3818壓差,G20069G16901G4804值可能G1998現(xiàn)在G233G78HZ點(diǎn)。G1306G7171在同一G20069G10587點(diǎn),對(duì)G1122G5430狀相同的泄漏孔,泄漏所產(chǎn)生的超聲波的聲G5390隨泄漏G18339的增G3835而增G3835。G2490G3818,如果泄漏G18339G5670G4462,G2375泄漏G19766G12227一G4462,G2029泄漏孔的G5430狀G17246G6521G17829G1122G3290G5430,聲壓G17246高。G5415泄漏孔的G19659G16846G6980用G5347G112G12表G12046時(shí),在G230G78HZ點(diǎn)聲壓G994G19659G168465G6980之G19400的關(guān)系如圖22所G12046。圖22G3聲壓級(jí)G994G19659G16846G6980的關(guān)系G3EPVDR（22）G3G5347G1025,G178G1038氣體密G5242G30G173G1038G12908G5242G30G57G1038G8981G17907G30G39G1038力G4410G5191G3355G11464G5464。G3G3G11013圖22可G11705,如果能檢測(cè)G1998A73A74孔G19480G17829在G7588一個(gè)G20069G10587點(diǎn)的聲G5390,G2029可G1209G6524算G1998該泄漏孔的G19659G16846G6980。對(duì)G1122該泄漏孔,G11013G1122G4439的力G4410G5191G3355G11464G5464G7171確G4462的,所G1209G17837時(shí)G19659G16846G6980G994氣體泄漏G18339G6116G8503比關(guān)系。G1306G7171對(duì)G1122不同的泄漏孔,G5194不G11705道G4439的力G4410G5191G3355G11464G5464,G3252G8504G1821G11705道G19659G16846G6980G17836不能求G1998泄漏G18339。在工業(yè)上,對(duì)G1122管道氣體,G11013G1122有G9316G9316不G7041的氣體G15929G13485,管道G18336G19766的氣壓一G14336都G7171G5670G4462值。而對(duì)G1122工業(yè)容器,G11013G1122小孔泄漏的泄漏G18339G19762G5132微弱,容器G5415G1025的壓力變G2282G19762G5132G13543G5942,所G1209可G1209G16760G1038在一段時(shí)G7411G1881G7171G5670G4462值。G5415系統(tǒng)G1881G3818壓力一G4462時(shí)，對(duì)G1122不同的泄漏孔，G4439的泄漏G8981G17907都G7171一G4462的，可G1209用G1856G5347（23）G7481表G12046G3112/1/052810052802588KKKVKPRT0，G392截止，G391導(dǎo)G17902。G391的導(dǎo)G17902G1038G6930G3835器G6564供了深G5242負(fù)反饋，G3252G8504，G6930G3835器的反相輸G1849端2G1038虛G3332點(diǎn)，檢波器從虛G3332點(diǎn)G13475G17819G532輸G1998信號(hào)。所G1209USCG320。G3G3G5415USRG1038G8503時(shí)，USC0G12G3。G3G3G3G3G11013G1122運(yùn)G6930的開G10627增益GO1G5468高，G3252G8504G5415輸G1849信號(hào)G1038G8503時(shí)，只要USRUG39G18GO1,G4613G1262使G392導(dǎo)G17902，而且G392一G7098導(dǎo)G17902，G6930G3835器G4613處G1122深G5242的閉G10627狀態(tài)，G19762線性失真G19762G5132小，從小信號(hào)開始，輸G1849和輸G1998之G19400G4613G7171具有良好的線性關(guān)系。G4439的死區(qū)G11017壓G19762G5132小，等G1122G1120極管的11G8503G2533壓G19489UG39的1G18GO1倍。設(shè)G392導(dǎo)G17902時(shí)檢波器的反饋系G6980G1038F，G2029G17837種精密檢波器的G1881阻和G9213G5242系G6980G1038普G17902檢波器的1G18G11GO1FG12倍，G5415G532G531時(shí)，檢波器G17836兼有G11017壓G6930G3835作用，可G4570信號(hào)G6930G3835G532G18G531倍。G3G3G3圖37G3精密檢波G11017G17347G32G3G36G18G39G17728換G11017G17347G3G3G36G18G39G17728換器有G5194G2487輸G1998G36G39G380G2709和串行G2487輸G1998G36G39G380G2731G3G3G3G3G36G18G390G2709的工作G17819G12255G3835致G1038首先輸G1849G3332址G17885G6333信號(hào)，在G36G47E信號(hào)作用下，G3332址信號(hào)G15999鎖存，產(chǎn)生譯碼信號(hào)，G17885G1025G8181G6323G18339輸G1849。然G2530輸G1849啟動(dòng)G17728換控制信號(hào)SG55G36G53G55（不應(yīng)小G1122100US）啟動(dòng)G17728換。G36G18G39G17728換一開始，芯G10267G1881部G4613立G2375G4570結(jié)束G7643志EOG38變G1038G1314G11017G5191，G5415從G38P（G38G47OG38K）引G1849G27個(gè)時(shí)鐘脈沖信號(hào)G2530，G36G18G39G17728換G2375告完G6116，G8504時(shí)EOG38變G1038高G11017G5191，同時(shí)G4570G6980碼寄存器的G17728換結(jié)果輸G1849到輸G1998三態(tài)G13543沖器G1025，在允許輸G1998信號(hào)OE的控制下，在G4570G17728換結(jié)果輸G1998。G3G1306G11013G1122本系統(tǒng)規(guī)G8181較小且要其精G5242不高，而G36G39G380G2709雖然G17728換G17907G5242較快G1306連線較多，G6117不予采用，而用連線較G4581的G36G39G380G2731G4613可G1209滿足要求。G3G36G18G39G17728換芯G10267G36G39G380G2731，其工作G11017壓G10385G57，采用逐G8437G17936G17829G5347G17728換結(jié)構(gòu)，G17728換時(shí)G19400G994單G10267G7438的時(shí)鐘G20069G10587有關(guān)。G994微處理器G6521G2487時(shí)只需3G7693線，G39O其G1025G1038G36G18G39G17728換G6980G6466串行輸G1998，G38G47KG1038時(shí)鐘信號(hào)，G38SG1038G10267G17885信號(hào)，G36G39G380G2731的工作時(shí)G5219如圖3G27G3，圖G33G27G3所G12046，在G12544G1120個(gè)G38G47K的下G19489G8851G2530，G39O輸G1998G7380高G1313G48SG37，G27個(gè)時(shí)鐘G2530G17728換完G6116。G3圖3G27G3G3G36G39G380G2731的工作時(shí)G5219123單G10267G7438G994G19202G11436、G47G38G39的連G6521G11017G17347的設(shè)計(jì)G3利用啟點(diǎn)開發(fā)G7507可G1209G5468容易的完G6116LCDG7186G12046,具體如下1602采用G7643準(zhǔn)的14G14062G6521G2487，其G1025G125441G14062VSSG1038G3332G11017G9316G125442G14062VDDG65215VG8503G11017G9316G125443G14062V0G1038G9094晶G7186G12046器對(duì)比G5242調(diào)G6984端，G6521G8503G11017G9316時(shí)對(duì)比G5242G7380弱，G6521G3332G11017G9316時(shí)對(duì)比G5242G7380高，對(duì)比G5242G17819高時(shí)G1262產(chǎn)生“G20752影”，使用時(shí)可G1209G17902G17819一個(gè)10K的G11017G1313器調(diào)G6984對(duì)比G5242G125444G14062RSG1038寄存器G17885G6333，高G11017G5191時(shí)G17885G6333G6980G6466寄存器、G1314G11017G5191時(shí)G17885G6333指G1208寄存器。G125445G14062RWG1038G16847寫信號(hào)線，高G11017G5191時(shí)進(jìn)行G16847操作，G1314G11017G5191時(shí)進(jìn)行寫操作。G5415RS和RW共同G1038G1314G11017G5191時(shí)可G1209寫G1849指G1208G6122者G7186G12046G3332址，G5415RSG1038G1314G11017G5191RWG1038高G11017G5191時(shí)可G1209G16847G5549信號(hào)，G5415RSG1038高G11017G5191RWG1038G1314G11017G5191時(shí)可G1209寫G1849G6980G6466時(shí)可G1209G16847G5549信號(hào)，G5415RSG1038高G11017G5191RWG1038G1314G11017G5191時(shí)可G1209寫G1849G6980G6466。G125446G14062E端G1038使能端，G5415E端G11013高G11017G5191G17351變G6116G1314G11017G5191時(shí)，G9094晶G8181塊G6203行G2641G1208。G12544714G14062D0D7G10388G1313雙G2533G6980G6466線。G2490G3818引G14062“A“和“K“G1038G13984G1821引G14062,“A“G6521G8503,“K“G6521負(fù)便G1262點(diǎn)G1154G13984G1821G97951602G9094晶G8181塊G1881部的G4395G12538發(fā)生存G1660器（CGROM已G13475存G1660了160個(gè)不同的點(diǎn)G19465G4395G12538圖G5430，G17837些G4395G12538有G19475G6301G1283G6980G4395、G14533文G4395G8609的G3835小寫、G5132用的G12538號(hào)、和G7097文G1563G2529等，每一個(gè)G4395G12538都有一個(gè)G3278G4462的G1207碼，比如G3835寫的G14533文G4395G8609“A”的G1207碼G717101000001B（41H），G7186G12046時(shí)G8181塊把G3332址41HG1025的點(diǎn)G19465G4395G12538圖G5430G7186G12046G1998G7481，G6117G1216G4613能看到G4395G8609“A”1602G9094晶G8181塊G1881部的控制器共有11G7477控制指G1208。G4439的G16847寫操作、G4643G5161和G1821G7643的操作都G7171G17902G17819指G1208G13546G12255G7481實(shí)現(xiàn)的。（G16840G71381G1038高G11017G5191、0G1038G1314G11017G5191）指G12081G9177G7186G12046，指G1208碼01H,G1821G7643復(fù)G1313到G3332址00HG1313G13634指G12082G1821G7643復(fù)G1313，G1821G7643G17832回到G3332址00H指G12083G1821G7643和G7186G12046G8181G5347設(shè)G13634I/DG1821G7643移動(dòng)方G2533，高G11017G5191G2503移，G1314G11017G5191G5050移SG4643G5161上所有文G4395G7171G2554G5050移G6122者G2503移。高G11017G5191表G12046有G6940，G1314G11017G5191G2029無G6940指G12084G7186G12046開關(guān)控制。D控制G6984體G7186G12046的開G994關(guān)，高G11017G5191表G12046開G7186G12046，G1314G11017G5191表G12046關(guān)G7186G12046C控制G1821G7643的開G994關(guān)，高G11017G5191表G12046有G1821G7643，G1314G11017G5191表G12046無G1821G7643B控制G1821G7643G7171G2554G19390G9877，高G11017G5191G19390G9877，G1314G11017G5191不G19390G9877指G12085G1821G7643G6122G7186G12046移G1313S/C高G11017G5191時(shí)移動(dòng)G7186G12046的文G4395，G1314G11017G5191時(shí)移動(dòng)G1821G7643指G12086G2163能設(shè)G13634G2641G1208DL高G11017G5191時(shí)G10384G1313G5647線，G1314G11017G5191時(shí)G10388G1313G5647線NG1314G11017G5191時(shí)G1038單行G7186G12046，高G11017G5191時(shí)雙行G7186G12046FG1314G11017G5191時(shí)G7186G120465X7的點(diǎn)G19465G4395G12538，高G11017G5191時(shí)G7186G120465X10的點(diǎn)G19465G4395G12538指G12087G4395G12538發(fā)生器RAMG3332址設(shè)G13634指G12088DDRAMG3332址設(shè)G1363413指G12089G16847G5549信號(hào)和G1821G7643G3332址BFG1038G5549G7643志G1313，高G11017G5191表G12046G5549，G8504時(shí)G8181塊不能G6521G6922G2641G1208G6122者G6980G6466，如果G1038G1314G11017G5191表G12046不G5549。指G120810寫G6980G6466指G120811G16847G6980G6466G9094晶G7186G12046G8181塊G7171一個(gè)G5942G7186G12046器件，所G1209在G6203行每G7477指G1208之前一G4462要確G16760G8181塊的G5549G7643志G1038G1314G11017G5191，表G12046不G5549，G2554G2029G8504指G1208失G6940。要G7186G12046G4395G12538時(shí)要先輸G1849G7186G12046G4395G12538G3332址，也G4613G7171告G16797G8181塊在G2750G18336G7186G12046G4395G12538。G3圖39單G10267G7438G994G47G38G39的連G6521G11017G17347G3VOIDTEST_BUSYVOIDUCHARI1DOP00XFFRS0RW1E1IFP0E0WHILEI0/VOIDENABLEUCHARORDERP0ORDER_NOP_RS014_NOP_RW0_NOP_E0_NOP_TEST_BUSY_NOP_E1_NOP_VOIDWRITEDATAUCHARDIGITALP0DIGITAL_NOP_RS1_NOP_RW0_NOP_E0_NOP_TEST_BUSY_NOP_E1_NOP_/VOIDRESETLCDVOID/LCDG2033始G2282設(shè)G13634/G94G3G3G3G3G3G39EG47G36G60G11G12G30G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G18G13G18G9177G19512G4643G5161G13G18G3G3G3G3G3ENG36G37G47EG110G5901G12G30G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G18G13G18G27G1313點(diǎn)G19465方G5347G13G18G3G3G3G3G3