[优秀毕业设计精品]基于单片机的气体泄漏超声波检测系统的设计

I目录A1A2A0A3A4A5A6A7A8A9A10A11A12A13A11A12PCBA14A15A0A3A4A5A6A7A8A9A10A16A17A18A17A19A20A21A22A23A24A25A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A36A37A26A38A19A20A21A23A24A39A40A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A36A37A26A41A19A20A21A22A42A43A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A26A27A28A29A29A30A31A32A33A34A30A31A33A34A30A33A34A35A35A44A45A46A44A45PCBA47A48A49A50A51A52A48A49A51A52A53A54A55A56A57A58A59A60A61A62A63A64A65A66A67A68A69A70A71A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A72A73A74A74A75A76A77A78A79A75A76A78A79A75A78A79A80A80A62A63A64A63A66A67A68A69A81A82A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A64A72A73A74A74A75A76A77A78A79A75A76A78A79A75A78A79A80A80A83A84A85A83A84PCBA86A87A88A89A87A88A90A91A92A93A94A95A96A97A98A99A100A101A102A103A104A105A106A107A108A109A110A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A112A113A114A114A115A116A117A118A119A115A116A118A119A115A118A119A120A120A121A122A111A123A124A125A126A127A128A129A130A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A111A112A113A114A114A115A116A117A118A119A115A116A118A119A115A118A119A120A120A131A132A133A131A132A134A135A136A137A138A139A135A136A137A138A140A141A142A143A144A145A146A147A148A149A150A151A152A153A154A155A156A157A158A159A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A149A150A151A169A153A154A155A156A157A170A171A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A149A150A151A150A172A154A155A156A157A173A174A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A151A160A161A162A162A163A164A165A166A167A163A164A166A167A163A166A167A168A168A175A176A177A175A176A178A179A180A181A182A183A184A179A180A181A182A183A184A185A186A187A188A189A190A191A192A193A194A195A196A197A198A199A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A196A200A201A202A202A203A204A205A206A207A203A204A206A207A203A206A207A208A208A209A210A211A212A211A212A213A214A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A224A225A215A226A227A228A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A224A225A215A229A230A231A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A215A216A217A218A218A219A220A221A222A223A219A220A222A223A219A222A223A208A208A232A233A234A232A233A235A236A237A238A239A240A236A237A239A240A241A242A243A244A245A246A247A248A249A250A251A252A253A254A255A53A0A1A2A3A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A252A8A4A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A12A13A14A15A59A17A18A19A20A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A21A22A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A12A13A14A23A61A24A25A26A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A14A21A22A10A10A11A5A6A7A9A11A5A7A9A11A7A9A16A16A27A52A28A29A30A31A32A33A34A35A36A37A54A55A38A39A40A41A42A43A44A45A46A56A57A47A58A38A39A40A41A42A43A44A45A461摘要随着工业的发展，各种气体包括易燃易爆、有毒气体的种类和应用范围都得到增加，传统的气体泄漏检测方法，如压差法、气泡法等，有其局限性，不仅操作复杂，对技术人员要求较高，而且不具有实时性。迫切需要各种方法简单，准确性可靠的检测方法。本文介绍了一种气体泄漏超声检测系统,在分析小孔气体泄漏产生超声波的原理的基础上,阐述了该检测系统的原理及设计方案。该系统能对各种压力容器的孔隙泄漏所产生的微弱超声信号进行精确检测。该系统利用技术对泄漏所产生的超声波信号进行分析处理和声压级计算,从而实现对泄漏的检测及泄漏G18339的G1284算。G17902G17819超声波检测，G8503确G3332G2040G7041和G4462G1313产生泄漏G1313G13634，对G1122G6564高G1237业的生产G6940G10587，G14422G13434能G9316，确G1457G4445G1852具有G18337G3835G5859G1053。G3在G17902G17819对超声波性G17148的G11752G12362G1025，G6117G1216发现超声波G7171一种高G20069G11713波，G5194且G4439在G12366气G1025传G6785具有G5468G5390的方G2533性。基G1122G8504G10317性，G6117设计了一G3883超声波检测G11017G17347，该G11017G17347包括了G8181G6323G11017G17347G994G6980G4395G11017G17347，其G1025G8181G6323G11017G17347包G2559了信号G6930G3835G11017G17347和G19911G20069处理G11017G17347G727G6980G4395G11017G17347G11013单G10267G7438和LCD、G19202G11436等G3818围设G3803G13464G6116。在对超声波信号的处理的G17819G12255G1025，信号G13475G17819G6930G3835G9400波G1209G2530，一G17347G1144G13485单G10267G7438处理，G5194在G7186G12046G4643上G16847G1998信号的G5390G5242G994G8981G17907G727G2490一G17347G17902G17819G19489G20069G17728G2282G1038可G2560声，从而实现检测的G11458的。关键词单G10267G7438G727声压级G727本G5225G3134声G727泄漏超声波2第一章引言传统的泄漏检测方法G7171G4570G5465测G10301G2709G1817G1849G8712G6122其G4439介G17148，G17902G17819G16278G4531，测G18339在G10317G4462时G19400G1881G1817G1849介G17148的G1955G4581G18339G11如G17902G17819检测G9094G19766的G19489G1314等G12G7481实现的，G17837G7171一种G11464G6521的测G18339方G5347。基G1122G17837种方法G2460G8978生G1998G2490一种方法，G2375G4570G5465测G10301G2709G1817G1849一G4462压力的气体介G17148G11G17902G5132G1038压G13565G12366气G12，而G2530G13634G8712G1025G16278G4531，G1209G15999测G10301G2709G2620围G7171G2554产生气泡作G1038G7171G2554泄漏的G7643准。G3随着技术的进G8505及检测方法的G6925G2904，所G16871“绝对不漏”G6122“无泄漏”只G7171一个G6980G18339上的概念，G17837一G16278念，已G15999人G1216所G6521受。G2040别一个测G18339G10301G2709漏G6122者不漏需要一个更G1038准确的、G6980G18339上的G7643准，G10317别G7171对一些需测G18339微小泄漏的场合。G3泄漏检查仪的G1998现G1038G1209上问题G6564供了一个较好的解决办法，G4439使得泄漏检测G17819G12255更加便捷，测G18339结果也更G1038可靠。在采用泄漏检查仪的基础上，再辅G1209上、下料G7438构、自动密封装G13634及G11017气控制、G9094压、气动系统等等G2375可G13464G6116一个可用G1122加工生产线上的泄漏检查设G3803试漏G7438。试漏检查仪的G1998现使得零部件的泄漏在线检测G6116G1038可能，采用G17837种装G13634可满足批G18339生产G1025对零部件泄漏情况检测的要求，G3835幅G6564高产G2709的G2709G17148G17148G18339。G3本课题主要设计一种气体泄漏检测系统。G311方案的选择与论证111方案一1绝对压力法G3绝对压力法测G18339系统如图11所G12046，G11013气G9316、G12366气G17819G9400器、压力表、G1817气阀、压力传感器等部分G13464G6116。测G18339G17819G12255如下G3G3图11G3绝对压力法测G18339原理G3G1817气G1817气阀开启，G2533G5465测件G1881G1817G1849规G4462压力的气体G727G3稳G4462G1817气阀关闭，G13475G17819一G4462时G19400G2530使得G1817G1849气体达到一个测G18339所必须的稳G4462状态。压力传感器G4570稳G4462阶段结束G11测G18339阶段开始G12前的压力值设G4462G1038一个测G18339的零点G727G3测G18339在规G4462的测G18339时G19400G1881，检测系统检G1998压力的变G2282值P，G994设G4462的压力变G2282极3限值进行比较，从而做G1998合格G6122不合格的G2040G4462G727G3排气测G18339结束G2530G4570测试件G1881部气体排G1849G3835气G1025。G3典型的测G18339压力时G19400之G19400关系如图12所G12046。G3G3图12G3测G18339压力时G19400曲线G3112方案二压差法测G18339原理见图13。压差法测G18339G17819G12255G994绝对压力法相似，G994绝对压力法不同之处在G1122压差法采用一个参考件加G1849测G18339系统G1025，用压差传感器记录测G18339阶段测G18339件G994参考件之G19400的压力变G2282值P。G3A48A49A50A51A60A62A63A64A65A66A67A48压差法G994绝对压力法类似，都G7171G17902G17819测G18339压力变G2282值G19400G6521G3332测G18339泄漏G10587值。G3113方案三超声波检测原理G7171利用超声波匀G17907传G6785且可G1209在金属表G19766发生部分反射的G10317性，G7481进行管道探伤检测，G4439G17902G17819G11017子装G13634，发送G1998超声波的高G20069（G3835G112220KHZ）脉冲，射到管壁上。反射回的超声波，再G17902G17819传感器（探G3848）G6521G6922回G7481，G13475G17819信号G6930G3835，G7186G12046G1998G7481波G5430。G11013G1122不同部G1313处反射到探G3848上的G17329G12175不同，G3252而超声波G17832回的时G19400也不同。检测器的G6980G6466处理单G1815便可G17902G17819计算探G3848G6521G6922到的G1016G13464反射波的时G19400差G1068G1209超声波传G6785的G17907G5242，得G1998管道的实G19481壁G2414。G17837G7691，G7094可G6365G10043时G19400差G7186G12046G1998的波G5430，G7693G6466G7643G4462，测G18339G1998管壁G2414G5242G6122G13582G19531G1209及G14116G15444G4622G4556等。G3G11013G1122传统的泄漏检测方法如绝对压力法、压差法、气泡法等,操作复杂G5194且对技术人员要求较高,而且不具有实时性。G11458前,工业上G5203G8879利用泄漏产生超声波的原理G7481进行泄漏检测。利用超声波检测气体泄漏G1313G13634,不仅方法简单,而且准确可靠。基G1122G8504,本文G11752G12362G5194设计了一种超声波气体泄漏检测系统。G34第二章气体泄漏检测的设计原理21气体泄漏产生超声波如果一个容器G1881G1817满气体,G5415其G1881部压G5390G3835G1122G3818部压G5390时,G11013G1122G1881G3818压差较G3835,一G7098容器有漏孔,气体G4613G1262从漏孔冲G1998。G5415漏孔G4622G4556较小且G19659G16846G6980较高时,冲G1998气体G4613G1262G5430G6116G9249G8981,G9249G8981在漏孔G19480G17829G1262产生一G4462G20069G10587的声波,如图21所G12046。声波G6403动的G20069G10587G994漏孔G4622G4556有关,漏孔较G3835时人G13831可G2560到漏气声,漏孔G5468小且声波G20069G10587G3835G112220G78HZ时,人G13831G4613G2560不到了,G1306G4439G1216能在G12366气G1025传G6785,G15999G12228作G12366G17745超声波。超声波G7171高G20069G11713波信号,其G5390G5242随着G12175开声G9316G11漏孔G12G17329G12175的增加而G17817G17907G15940G1955。G3252G8504,超声波G15999G16760G1038G7171一种方G2533性G5468G5390的信号,用G8504信号G2040G7041泄漏G1313G13634相G5415简单。G3图21气体泄漏产生超声波22声压与泄漏量的关系泄漏超声本G17148上G7171G9249G8981和冲G1999G3134声。泄漏G20559点压力PG994泄漏孔G2487G11464G5464G39决G4462了G9249G8981声的声压级G47。G14891G2529G4410者G20544G3835G10507G6957G6492G6524G1998如下G1856G5347G621G64G29G340220008020LOG10LOG05DPPLDPPP020DBPA（21）G5347G1025,G47G1038G3414G11464方G2533G17329G12175G2955G24871G80处的声压级G11单G1313G29G71G37G12G30G39G1038G2955G2487G11464G5464G11单G1313G29G80G80G12G30G390G7291G80G80G30P0G1038G10627G3671G3835气绝对压力G30PG1038泄漏孔G20559压。G3G11013G8504可G11705,G3在G994泄漏孔的G17329G12175一G4462时,泄漏超声的声压级G7171随泄漏孔G4622G4556和系统压力的变G2282而变G2282的。泄漏产生的超声波G20069G5114比较G4497,一G14336在20G78HZ到100G78HZ之G19400。在不同的G20069G10587点,超声波的能G18339G7171不同的。实G19481上,G4439的G20069G16901G4804值也G7171随泄漏孔的G4622G4556和压力的变G2282而变G2282的。比如G29在一G4462的泄漏孔G5464和压力下,如果A68A69A70A71A72的G20069G16901G4804值G7171在3G27G78HZ点,G18039G1052加G3835孔G5464G1209G2530G4439的G20069G16901G4804值可能G1998现在3G25G78HZ点G30如果孔G5464不变,加G3835系统G1881G3818压差,G20069G16901G4804值可能G1998现在G233G78HZ点。G1306G7171在同一G20069G10587点,对G1122G5430状相同的泄漏孔,泄漏所产生的超声波的声G5390随泄漏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状G17246G6521G17829G1122G3290G5430,声压G17246高。G5415泄漏孔的G19659G16846G6980用G5347G112G12表G12046时,在G230G78HZ点声压G994G19659G168465G6980之G19400的关系如图22所G12046。图22G3声压级G994G19659G16846G6980的关系G3EPVDR（22）G3G5347G1025,G178G1038气体密G5242G30G173G1038G12908G5242G30G57G1038G8981G17907G30G39G1038力G4410G5191G3355G11464G5464。G3G3G11013图22可G11705,如果能检测G1998A73A74孔G19480G17829在G7588一个G20069G10587点的声G5390,G2029可G1209G6524算G1998该泄漏孔的G19659G16846G6980。对G1122该泄漏孔,G11013G1122G4439的力G4410G5191G3355G11464G5464G7171确G4462的,所G1209G17837时G19659G16846G6980G994气体泄漏G18339G6116G8503比关系。G1306G7171对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。在工业上,对G1122管道气体,G11013G1122有G9316G9316不G7041的气体G15929G13485,管道G18336G19766的气压一G14336都G7171G5670G4462值。而对G1122工业容器,G11013G1122小孔泄漏的泄漏G18339G19762G5132微弱,容器G5415G1025的压力变G2282G19762G5132G13543G5942,所G1209可G1209G16760G1038在一段时G7411G1881G7171G5670G4462值。G5415系统G1881G3818压力一G4462时，对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导G17902。G391的导G17902G1038G6930G3835器G6564供了深G5242负反馈，G3252G8504，G6930G3835器的反相输G1849端2G1038虚G3332点，检波器从虚G3332点G13475G17819G532输G1998信号。所G1209USCG320。G3G3G5415USRG1038G8503时，USC0G12G3。G3G3G3G3G11013G1122运G6930的开G10627增益GO1G5468高，G3252G8504G5415输G1849信号G1038G8503时，只要USRUG39G18GO1,G4613G1262使G392导G17902，而且G392一G7098导G17902，G6930G3835器G4613处G1122深G5242的闭G10627状态，G19762线性失真G19762G5132小，从小信号开始，输G1849和输G1998之G19400G4613G7171具有良好的线性关系。G4439的死区G11017压G19762G5132小，等G1122G1120极管的11G8503G2533压G19489UG39的1G18GO1倍。设G392导G17902时检波器的反馈系G6980G1038F，G2029G17837种精密检波器的G1881阻和G9213G5242系G6980G1038普G17902检波器的1G18G11GO1FG12倍，G5415G532G531时，检波器G17836兼有G11017压G6930G3835作用，可G4570信号G6930G3835G532G18G531倍。G3G3G3图37G3精密检波G11017G17347G32G3G36G18G39G17728换G11017G17347G3G3G36G18G39G17728换器有G5194G2487输G1998G36G39G380G2709和串行G2487输G1998G36G39G380G2731G3G3G3G3G36G18G390G2709的工作G17819G12255G3835致G1038首先输G1849G3332址G17885G6333信号，在G36G47E信号作用下，G3332址信号G15999锁存，产生译码信号，G17885G1025G8181G6323G18339输G1849。然G2530输G1849启动G17728换控制信号SG55G36G53G55（不应小G1122100US）启动G17728换。G36G18G39G17728换一开始，芯G10267G1881部G4613立G2375G4570结束G7643志EOG38变G1038G1314G11017G5191，G5415从G38P（G38G47OG38K）引G1849G27个时钟脉冲信号G2530，G36G18G39G17728换G2375告完G6116，G8504时EOG38变G1038高G11017G5191，同时G4570G6980码寄存器的G17728换结果输G1849到输G1998三态G13543冲器G1025，在允许输G1998信号OE的控制下，在G4570G17728换结果输G1998。G3G1306G11013G1122本系统规G8181较小且要其精G5242不高，而G36G39G380G2709虽然G17728换G17907G5242较快G1306连线较多，G6117不予采用，而用连线较G4581的G36G39G380G2731G4613可G1209满足要求。G3G36G18G39G17728换芯G10267G36G39G380G2731，其工作G11017压G10385G57，采用逐G8437G17936G17829G5347G17728换结构，G17728换时G19400G994单G10267G7438的时钟G20069G10587有关。G994微处理器G6521G2487时只需3G7693线，G39O其G1025G1038G36G18G39G17728换G6980G6466串行输G1998，G38G47KG1038时钟信号，G38SG1038G10267G17885信号，G36G39G380G2731的工作时G5219如图3G27G3，图G33G27G3所G12046，在G12544G1120个G38G47K的下G19489G8851G2530，G39O输G1998G7380高G1313G48SG37，G27个时钟G2530G17728换完G6116。G3图3G27G3G3G36G39G380G2731的工作时G5219123单G10267G7438G994G19202G11436、G47G38G39的连G6521G11017G17347的设计G3利用启点开发G7507可G1209G5468容易的完G6116LCDG7186G12046,具体如下1602采用G7643准的14G14062G6521G2487，其G1025G125441G14062VSSG1038G3332G11017G9316G125442G14062VDDG65215VG8503G11017G9316G125443G14062V0G1038G9094晶G7186G12046器对比G5242调G6984端，G6521G8503G11017G9316时对比G5242G7380弱，G6521G3332G11017G9316时对比G5242G7380高，对比G5242G17819高时G1262产生“G20752影”，使用时可G1209G17902G17819一个10K的G11017G1313器调G6984对比G5242G125444G14062RSG1038寄存器G17885G6333，高G11017G5191时G17885G6333G6980G6466寄存器、G1314G11017G5191时G17885G6333指G1208寄存器。G125445G14062RWG1038G16847写信号线，高G11017G5191时进行G16847操作，G1314G11017G5191时进行写操作。G5415RS和RW共同G1038G1314G11017G5191时可G1209写G1849指G1208G6122者G7186G12046G3332址，G5415RSG1038G1314G11017G5191RWG1038高G11017G5191时可G1209G16847G5549信号，G5415RSG1038高G11017G5191RWG1038G1314G11017G5191时可G1209写G1849G6980G6466时可G1209G16847G5549信号，G5415RSG1038高G11017G5191RWG1038G1314G11017G5191时可G1209写G1849G6980G6466。G125446G14062E端G1038使能端，G5415E端G11013高G11017G5191G17351变G6116G1314G11017G5191时，G9094晶G8181块G6203行G2641G1208。G12544714G14062D0D7G10388G1313双G2533G6980G6466线。G2490G3818引G14062“A“和“K“G1038G13984G1821引G14062,“A“G6521G8503,“K“G6521负便G1262点G1154G13984G1821G97951602G9094晶G8181块G1881部的G4395G12538发生存G1660器（CGROM已G13475存G1660了160个不同的点G19465G4395G12538图G5430，G17837些G4395G12538有G19475G6301G1283G6980G4395、G14533文G4395G8609的G3835小写、G5132用的G12538号、和G7097文G1563G2529等，每一个G4395G12538都有一个G3278G4462的G1207码，比如G3835写的G14533文G4395G8609“A”的G1207码G717101000001B（41H），G7186G12046时G8181块把G3332址41HG1025的点G19465G4395G12538图G5430G7186G12046G1998G7481，G6117G1216G4613能看到G4395G8609“A”1602G9094晶G8181块G1881部的控制器共有11G7477控制指G1208。G4439的G16847写操作、G4643G5161和G1821G7643的操作都G7171G17902G17819指G1208G13546G12255G7481实现的。（G16840G71381G1038高G11017G5191、0G1038G1314G11017G5191）指G12081G9177G7186G12046，指G1208码01H,G1821G7643复G1313到G3332址00HG1313G13634指G12082G1821G7643复G1313，G1821G7643G17832回到G3332址00H指G12083G1821G7643和G7186G12046G8181G5347设G13634I/DG1821G7643移动方G2533，高G11017G5191G2503移，G1314G11017G5191G5050移SG4643G5161上所有文G4395G7171G2554G5050移G6122者G2503移。高G11017G5191表G12046有G6940，G1314G11017G5191G2029无G6940指G12084G7186G12046开关控制。D控制G6984体G7186G12046的开G994关，高G11017G5191表G12046开G7186G12046，G1314G11017G5191表G12046关G7186G12046C控制G1821G7643的开G994关，高G11017G5191表G12046有G1821G7643，G1314G11017G5191表G12046无G1821G7643B控制G1821G7643G7171G2554G19390G9877，高G11017G5191G19390G9877，G1314G11017G5191不G19390G9877指G12085G1821G7643G6122G7186G12046移G1313S/C高G11017G5191时移动G7186G12046的文G4395，G1314G11017G5191时移动G1821G7643指G12086G2163能设G13634G2641G1208DL高G11017G5191时G10384G1313G5647线，G1314G11017G5191时G10388G1313G5647线NG1314G11017G5191时G1038单行G7186G12046，高G11017G5191时双行G7186G12046FG1314G11017G5191时G7186G120465X7的点G19465G4395G12538，高G11017G5191时G7186G120465X10的点G19465G4395G12538指G12087G4395G12538发生器RAMG3332址设G13634指G12088DDRAMG3332址设G1363413指G12089G16847G5549信号和G1821G7643G3332址BFG1038G5549G7643志G1313，高G11017G5191表G12046G5549，G8504时G8181块不能G6521G6922G2641G1208G6122者G6980G6466，如果G1038G1314G11017G5191表G12046不G5549。指G120810写G6980G6466指G120811G16847G6980G6466G9094晶G7186G12046G8181块G7171一个G5942G7186G12046器件，所G1209在G6203行每G7477指G1208之前一G4462要确G16760G8181块的G5549G7643志G1038G1314G11017G5191，表G12046不G5549，G2554G2029G8504指G1208失G6940。要G7186G12046G4395G12538时要先输G1849G7186G12046G4395G12538G3332址，也G4613G7171告G16797G8181块在G2750G18336G7186G12046G4395G12538。G3图39单G10267G7438G994G47G38G39的连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设G13634/G94G3G3G3G3G3G39EG47G36G60G11G12G30G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G18G13G18G9177G19512G4643G5161G13G18G3G3G3G3G3ENG36G37G47EG110G5901G12G30G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G18G13G18G27G1313点G19465方G5347G13G18G3G3G3G3G3