用ds1302与1602lcd设计的可调式电子日历时钟的设计与实现 毕业论文

信息工程学院毕业设计（论文）20092010学年第二学期题目用DS1302与1602设计的可调式电子日历时钟的设计与实现学生姓名（学号）指导教师职称教授评阅教师职称时间2信息工程学院毕业设计（论文）任务书指导教师职称教授学生人数1人学生姓名（学号、专业）毕业设计（论文）题目（来源、类型）A1DS1302A21602LCDA3A0A4A5A6A7A8A9A10A11A12A13A4A3A0A2A14A15毕业设计（论文）工作内容与基本要求（目标、任务、途径、方法、成果形式，应掌握的原始资料（数据）、参考资料（文献）以及设计技术要求、注意事项等）（纸张不够可加页）基本要求A171A18A19A16A21A22A23A24A23A10A23A12A23A25A23A26A27A172A18A28A20A22A23A24A23A10A23A12A23A25A23A26A4A3A29A30A31A33成果形式（主要包括毕业论文，系统设计技术文档，软件等）设计功能演示；论文电子文档及程序提交光盘；按学院格式要求打印论文3份上交。参考资料有单片机的C语言应用程序设计（马忠梅、）新编单片机应用程序设计（张毅刚）教研室审批意见审批人签名3信息工程学院毕业设计（论文）开题报告课题名称（来源、类型）A1DS1302A21602LCDA3A0A4A5A6A7A8A9A10A11A12A13A4A3A0A2A14A15指导教师学生姓名专业07电子信息工程技术开题报告内容（调研资料的G1946G3803，设计/论文的目的、要求、G5617G17347G994G20056G7411成果；任务G4448成的G19466G8585内容及G7114G19400G4445G6502；G4448成设计（论文）G6164G1867G3803的G7477件G3252G13044等。）1G714目的G4466G10628G7097G2394G2656G7114G19059的G7186示G5194G1000能够调G69842G714要求G4448成可调式电子G7097G2394G7114G19059的G11840件G2656软件的设计，包括单片机的G11468G1863内容；G7097G2394G7114G19059G8181G3371的设计，G9094G7242G7186示G8181G3371的设计，按G19202G8181G3371的设计。G6523G2058程序的编G1901等。3A34G20056G7411成果G1235G11507成功，G1582G1998G4466G10301G1147G2709。（1）G3G7186示G2033始G1552G7097G2394G7114G19059G2033始G1552；（2）G3用按G19202调G6984G7097G2394G7114G19059。4G714G7114G19400G4445G6502G1254412G2620G10099G5725G16850题的基本要求，G7609G19417G11468G1863资料，G2033G8505G6323G4462设计的G6984G1319方G7708，G4448成开题报告。G1254438G2620G14270学G17837G8437G16850题G6164G9053及的G11468G1863内容，包括G3132件基G11796G11705G16794、单片机，DS1302G7114G19059G14467片工G1328原G10714G2656G11468G1863软件的G1363用以及DS1602G9094G7242G4643的G11468G1863内容。G5194设计G980G1135G12628单的G4466G19481电G17347，G10099G13463G6164学内容G5194加以G5053G3278。G10099G5725G13484G3282软件PROTELDXP的G1363用；G12544912G2620设计DS1302G7114G19059G8181G3371的G6523G2058电G17347、DS1602G9094G7242G7186示电G17347、电G9316电G17347等G11840件电G17347，G5194用PROTELDXPG13484G2058原G10714G3282，G2656G13484G2058印G2059电G17347G7507G3282。编G1901G11468G1863的G6523G2058程序；G125441315G2620G9950G6521调G16809电G17347，G7693据G2520G18108G2010的G1328用G4557G11840件电G17347G17839G15904调G16809，G7380G2530G13864机调G16809。G7380G2530数G2620G1901毕业设计论文，G4448成G1852G18108毕业设计。A35A32A36A37A38A39A40A41A42A404目录A43A44A45A465A43A47A48A49A465A50A51A52A53A54A55A45A56A57A58A59A60A6111A54A55A45A56512A62A63A64A65A58A59A66A67A68A60A615121A69A70A71A72A70A73A66A67A58A59A68A60A616122A74A75A76A77A78A79A80A81A82A83A846123A85A86A87A88A89A78A79A80A81A82A83A84613A90A91A92A93A94A95A80A81A96A977A98A99A100A101A102A103A104A105A89A92A9321A90A91A92A93A106A107722A102A103A104A105A108A109723A110A111A112A113A114A115A116A117A1187231A112A119A120A110A121A122A123A124A116A117A1187232A125A126A114A115DS13028233A127A128A123A124A116A117A11811A129A130A131A132A133A134A116A135A136A117A11831A137A138A139A137A140A1412032A125A142A143A144A137A1382133A145A146A147A148A149A150A15127A152A153A154A155A156A157A158A15941A158A159A160A1612842A162A163A158A1592843A164A163A158A159284A165A158A159A166A167A168A169A170A166A17128441A158A159A166A167A168A16928442A158A159A166A17128A172A173A174A16629A175A176A17729A178A179A180A18129A182A183A18431A182A183A18532A182A183A186325【摘要】A187A188A189A190A191A192A193A194A195A196A197A198A191A199A200,A201A202A203A204A205A206A207A208A209A210A211A212A213A208A196A214A215A216A217A218A219A220A216A217A221A222A223A224A225A226A227DALLASA228A229A230A231A232A233A234A235A236A237A238A239A237A240A232A241A242A243A244A245A245A246A237A247DS130A248A225A249A250A251A252A253A254A255A254A11A254A161A11A254A245A254A25A254A26A0A1A2A245A220A164A233A234A3A253A4A5A6A7A170A242A240A220A171A8DS1302A232A9A10A12A13A14A220A177A15A16A225A252A160A17A18A237A19A20A253A21A22A10A23A24A232A17A18A27A28A220A250A251A29A245A27A28A253A254A255A254A11A254A161A11A254A245A254A25A254A26A30A31A220A164A233A234A245A32A33A34A6A242A240A225A191A237A247A22A10STC89C52A64A35A36A37A38A39A40A220A242A243A16A220A240A413VA232A241A42A43A37A220A237A42A250A44A1035VA237A42A45A237A225A101602A93A46A27A28A220A198A23A24A225A199A47A48A49A50A20A253A21A233A234A51A52A53A54A254A27A28A23A24A254A242A240A7A55A254A237A247A56A57A254A209A58A241A59A6A60A7A61A62A220A214A63A237A19A65A66A65A67A232A68A69A70A71A220A233A234A72A73A232A74A75A76A77A225【关键词】G7114G19059电G19059；DS1302；LCD1602；单片机STC89C526第一章、设计要求与方案论证11设计要求A225A78A79A80A81A82A81A83A81A227A84A81A85A81A86A81A87A88A89A90A91A228A78A92A80A81A82A81A83A81A227A84A81A85A81A86A81A87A94A95A89A90A9112系统基本方案选择和论证121单片机芯片的选择方案和论证A96A97A98A184A9989C51A100A101A102A103A104A105A106A107A127A184A99FLASHROMA127A230A108A109A1104KBROMA232A111A112A113,A114A1803VA115A116A117A118A119A102,A120A121A122MCS51A123A124A125A126A128A129A130A131A132,A241A133A134A135A136A137A138A139A140A141A142A143A136A144A145A146ISPA147A148A149A150A151A152,A249A147A153A137A138A154A155A156A157A142A158A143A136A150A245A159A162A163A165A166A167A153A150A245A159A168A169A172A173A174A175A176A178A150A245A142A158A153A179A126A159A181A182A183A185A186A153A179A126A187A188A189A190A159A192A193A194A195A196A197A200A135STC89C52,A126A201ROMA130A202A200A135FLASHROMA203A173A2043VA159A205A206A207A208A210A203A211A142A212A122MCS51A123A124A125A126A128A129A130A213A179A126A201A215A216A217A218A2198KBROMA216A217A220A221A158A211A222A145A22389C51A159A172A173A158A121A145A223A147A148A149A150A224A226A229A151A152A158A153A231A233A234A159A150A245A173A235A236A237A158A238A239A240A130A194A249A147A153A137A138A154A155A156A157A142A158A143A136A150A245A159A162A163A165A166A167A153A150A245A159A168A169A172A173A174A175A176A178A150A245A142A158A144A174A175A153A179A126A181A182A183A185A158A231A204A144A186A153A179A126A187A188A192A193A194A231A204A242A243A200A135STC89C52A210A219A244A246A247A123A248122显示模块选择方案和论证A250A251A252A253A254A255A184A23A8A0A24A1A19A2A127A213A3A4A5A6A7A242A9A26A163A26A236A10A11A27A75A28A7A12A209A13A160A14A15A16A17A182A21A198A30A215,A31A18A20A22A15A16A5A182A15A32A132A33A25,A172A35A29A34A36A160A198A38,A201A37A39A20A40A41A42A43A15A16A53A44A75A45A18A20LEDA5A6A7A46A47A48A49,A50A51LEDA5A6A7A35A29A30A244,A241A52A15A16A54A55A5A182A201A56A52A10A55A5A57A54A13A58A59A198A60A13A201A37A34A39A20A40A41A42A43A15A16A61A53A44A62A45A18A20LCDA93A63A15A16A64,A93A63A15A16A64A10A15A16A58A65A66A60,A67A15A16A60A68A17A182,A79A69,A15A16A54A70,A71A72A67A73,A74A76A77A5A6A7A36A21A58A59A198A78A13A80A81A82A83A207A84A61A201A37A15A16A85A86A18A201602A93A63A61123时钟芯片的选择方案和论证A87A88A89A90A185A91A92A94A95A96A97A98A99A100A101A102A103A197A104A105A106A107A173A94A108A109A110A111A112A113A114A113A115A113A227A116A113A99A113A117A113A104A100A101A118A92A94A119A120A121A122A123A124A125A126A128A96A129A173A94A107A130A131A133A134A107A135A136A107A110A111A129A99A137A138A139A140A141A118A142A143A144A92A94A119A121A122A118A121A122A145A146A92A94DS1302A99A147A128A96A110A111A99A147A107DS1302A128A96A136A148A120A149A150A151A129A99A147A128A96A107A152A153A154A155A104A113A117A113A99A113A115A113A161A113A114A113A112A143A156A165A112A157A158A129A112A159A162A100A101A107A171A164A166A167A149,A168A129RAMA169A192A101A170A174A232A175A107A196A176A177A17825VA17955VA180A181A230A10725VA99A183A177A186A187300NA713电路设计最终方案决定A199A188A189A190A191A193A194,A195A200A202A203A204A205A190A191A206A208A210A211STC89C52A212A214A216A217A218A219A220DS1302A221A222A223A2241602A225A226A212A214A228A229A231第二章、系统的硬件设计与实现21电路设计框图A233A234A235A237A238LCDA239A240A237A238A243A245A237A238A246A247A248A24989C5222系统硬件概述A250A251A252A253A254STC89C52A255A64A0A1A2A3A4A5A127A28A6A7A8A9A10A11A12A127A155A11A13A127A12A73VA235A155A14A15A16A27A17A18A251A252A254DS1302A59A197A127A158A253A19A20A38A21A12A23A155A11A13A23A79RAMA22A24A17A17A18A251A252A127A158A25A26A29A30A23A31A23A32A23A161A32A23A17A23A33A23A34A35A36A37A17A127A28A6A39A30A40A41A11A12A127A15A16A251A14A125VA7555VA42A184A43A44A8A58A45A46CPUA35A36A162A81A47A187A127A82A25A184A43A83A125A48A49A19A50A51A52A169A53A182A63A22A17A18A187A60A253RAMA181A72A42DS1302A230A54A6A19A53318A22A43A55A86A17A21A232A87A181A72A22RAMA88A232A56A42A25A89A57A30A23A31A23A32A23A161A32A23A17A23A33A23A34A127A28A6A61A43A62A65A66A127A68A69A38A67A155A11A13A70A91A213A127A162A17A28A6A92A251A71A73A74A232A11A12,A250A251A252A184A43DS1302A255A182A63A51A52A48A49A24A76A46A77A2A0A94A78A181A72A22A51A52A27A80A84A54A95A2541602A96A209A4223主要单元电路的设计231单片机主控制模块的设计STC89C52A85A90A93A9740A98A99A100A236A101A102A103A104,A105A106A107I/OA108P0,P1,P2,P3,MCS51A109A104A110A111A1054A1078A112A113I/OA108A114P0A115P1A115P2A115P3A116A117A118A119A120I/OA246A121A122A123A124A126A128A129A151A130A129A131A132A109A104A110A113A133A134A135A136A137A138A139A140A141,18A98A99A14219A98A99A143A144A145A146A147,XTAL1A143A148A231A149A150A142A152A153A146A154A113A119A156,A157A104A159A160A163A150A164A165A166A167A168A170A165A113A129A131,XTAL2A143A148A231A149A150A142A152A153A146A154A113A171A1198A156,A157A104A159A160A163A150A164A165A166A167A168A170A165A113A129A151A1729A98A99A192A173A112A129A131A156,A143A200A146A154,A146A174A175A176A177A178A179A200A146A173A112A146A147,20A98A99A192A143A126A156,40A98A99A192A146A180A156A137A1391A1391主控制系统232时钟电路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的引脚图2DS1302A10A72A151A108A43A441A218A219A45A65DS1302A183A46A108A43A44A21DS1302A207A101A120A162A222A47A48A49A88A89A223A50A154A37A95A28A29A198A14A3SCLKA39A30“0”A198A247A51A3RSTA39A30“1”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“CH”A242A218A219A73A66A67A168A255A198A249A191A255A2011A218A198A218A219A239A240A22A66A147A198DS1302A169A233A33A13A68A69A36A27A249A191A255A2010A218A198A218A219A70A28A243A222A206“WP”A242A49A216A74A255A198A207A172A75A183A160A218A219A238RAMA183A49A151A108A94A223A198WPA154A37A2010A206A249“WP”A2011A218A198A49A216A74A255A76A147A160A172A77A20A232A22A183A49A151A108A2062DS1302A183A84A15A23A63DS1302A183A84A15A23A31A2161A201A190A206A84A15A23A63A183A38A9A78A255A40A2557A42A154A37A242A140A161A198A31A32A79A2010A198A152A139A186A3A10A72A49A4DS1302A244A198A2556A31A320A198A152A216A190A232A80A58A60A218A219A10A72A198A2011A216A190A232A80RAMA10A72A27A2555A129A2551A54A190A151A108A64A55A183A18A19A27A71A33A9A78A255A40A2550A42A31A2010A216A190A81A162A222A49A151A108A198A2011A216A190A162A222A47A151A108A198A84A15A23A63A110A242A57A71A33A255A70A28A106A191RAMRD1A4A3A2A1A0/CK/WRA2161DS1302A183A84A15A23A82A833A10A72A106A4A106A191A40I/OA42A207A84A15A54A145A23A106A4A202A183A214A77A86SCLKA218A219A183A200A176A87A218A198A10A72A26A49A4DS1302A198A10A72A106A4A57A33A255A90A2550A70A28A206A186A91A198A207A179A928A255A183A84A15A54A145A23A202A183A214A77A86SCLKA164A52A183A214A93A87A4710A191DS1302A183A10A72A198A47A191A10A72A218A57A33A2550A255A96A38A2557A206A31A214A1893A201A190图3DS1302A98A100A102A203/A103A104A105A1074DS1302A109A111A112A113DS1302A11412A115A111A112A113A127A116A244A1147A115A111A112A113A118A119A121A122A123A124A125A126A128A130A131A132A133A134A136A192BCDA137A141A143,A144A146A148A149A123A150A153A130A155A159A144A161A163A165A167A1712A173A1712DS1302A132A146A148A149A123A150A153A130A155A174A177A178DS1302A181A182A183A184A185A187A188A189A190A193A185A187A188A189A194A195A185A187A188A189A196A198A199A204A185A187A188A205A206RAMA207A208A209A185A187A188A210A211A196A198A199A204A185A187A188A212A213A214A215A217A218A219A220A221A194A195A185A187A188A177A209A222A182A185A187A188A224A225A211DS1302A206RAMA207A208A209A185A187A188A226A227A228A229A230A213A229A231A233A234RAMA233A235A178A23631A234A178A237A234A233A235A238A239A227A213A2348A240A209A241A242A178A243A245A246A190A193A241A227C0HA247FDHA178A243A248A249A250A227A219A251A252A178A254A250A227A220A251A252A255A113A213A229A227A199A204A125A0A16A209RAMA185A187A188A178A174A125A0A16A212A213A214A215A219A220A222A182A209RAMA20931A234A241A242A178A245A246A190A193A241A227FEHA220A189FFHA219A211233显示模块的设计11602介绍11字符型液晶显示模块是一种专门用于显示字母、数字、符号等点阵式LCD，目前常用161，162，202和402行等的模块。下面以长沙太阳人电子有限公司的1602字符型液晶显示器为例，介绍其用法。一般1602字符型液晶显示器实物如图4图41602字符型液晶显示器实物图21602LCD的基本参数及引脚功能1602LCD分为带背光和不带背光两种，基控制器大部分为HD44780，带背光的比不带背光的厚，是否带背光在应用中并无差别，两者尺寸差别如下图5所示12图51602LCD尺寸图1602LCD主要技术参数显示容量162个字符芯片工作电压4555V工作电流20MA50V模块最佳工作电压50V字符尺寸295435WHMM引脚功能说明1602LCD采用标准的14脚（无背光）或16脚（带背光）接口，各引脚接口说明如表3所示编号符号引脚说明编号符号引脚说明1VSS电源地9D2数据2VDD电源正极10D3数据3VL液晶显示偏压11D4数据134RS数据/命令选择12D5数据5R/W读/写选择13D6数据6EG1363能G1461号14D7数据7D0数据15BLA背光源正极8D1数据16BLK背光源G17139极表3引脚接口说明表G125441脚VSS为地电源。G125442脚VDD接5V正电源。G125443脚VL为液晶显示器G4557比G5242G16855G6984G12483，接正电源G7114G4557比G5242最G5381，接地G7114G4557比G5242最G20652，G4557比G5242G17819G20652G7114G1262G1147G10995“G20752G5445”，G1363用G7114G2499以G17902G17819一个10K的电G1313器G16855G6984G4557比G5242。G125444脚RS为G4504G4396器选择，G20652电G5191G7114选择数据G4504G4396器、G1314电G5191G7114选择G6363令G4504G4396器。G125445脚R/W为读写G1461号G13459，G20652电G5191G7114G17839行读G6817作，G1314电G5191G7114G17839行写G6817作。G5415RS和R/WG1861G2528为G1314电G5191G7114G2499以写G1849G6363令或者显示地G3348，G5415RS为G1314电G5191R/W为G20652电G5191G7114G2499以读G5549G1461号，G5415RS为G20652电G5191R/W为G1314电G5191G7114G2499以写G1849数据。G125446脚EG12483为G1363能G12483，G5415EG12483G11013G20652电G5191G17351G2476G6116G1314电G5191G7114，液晶模块G6203行命令。G125447G79414脚D0G794D7为8G1313G2464G2533数据G13459。G1254415脚背光源正极。G1254416脚背光源G17139极。1431602LCD的G6363令说明及G7114G52191602液晶模块G1881部的控制器G1861有11G7477控制G6363令，如表4所示G5219号G6363令RSR/WD7D6D5D4D3D2D1D01G9177显示00000000012光标G17832G32500000000013G13634G17767G1849模式00000001I/DS4显示G5332/G1863控制0000001DCB5光标或字符G12239G1313000001S/CR/L6G13634功能00001DLNF7G13634字符G2469G10995G4396G17154器地G33480001字符G2469G10995G4396G17154器地G33488G13634数据G4396G17154器地G3348001显示数据G4396G17154器地G33489读G5549标G5547或地G334801BFG16757数器地G334810写数G2052CGRAM或DDRAM）10G16213写的数据G1881容11G1186CGRAM或DDRAM读数11读G1998的数据G1881容表4控制命令表1602液晶模块的读写G6817作、G4643G5161和光标的G6817作G18129是G17902G17819G6363令编G12255G7481实G10628的。（说明1为G20652电G5191、0为G1314电G5191）G6363令1G9177显示，G6363令G1173301H,光标G3809G1313G2052地G334800HG1313G13634。G6363令2光标G3809G1313，光标G17832G3250G2052地G334800H。15G6363令3光标和显示模式G16786G13634I/D光标G12239G2172G7053G2533，G20652电G5191G2503G12239，G1314电G5191G5050G12239G4643G5161G990所有G7003字是否G5050G12239或者G2503G12239。G20652电G5191表示有G6940，G1314电G5191G2029无G6940。G6363令4显示G5332G1863控制。D控制G6984G1319显示的G5332G994G1863，G20652电G5191表示G5332显示，G1314电G5191表示G1863显示C控制光标的G5332G994G1863，G20652电G5191表示有光标，G1314电G5191表示无光标B控制光标是否G19390G9877，G20652电G5191G19390G9877，G1314电G5191不G19390G9877。G6363令5光标或显示G12239G1313S/CG20652电G5191G7114G12239G2172显示的G7003字，G1314电G5191G7114G12239G2172光标。G6363令6功能G16786G13634命令DLG20652电G5191G7114为4G1313G5647G13459，G1314电G5191G7114为8G1313G5647G13459NG1314电G5191G7114为G2345行显示，G20652电G5191G7114G2464行显示FG1314电G5191G7114显示5X7的点阵字符，G20652电G5191G7114显示5X10的点阵字符。G6363令7字符G2469G10995器RAM地G3348G16786G13634。G6363令8DDRAM地G3348G16786G13634。G6363令9读G5549G1461号和光标地G3348BF为G5549标G5547G1313，G20652电G5191表示G5549，G8504G7114模块不能接G6922命令或者数据，如G7536为G1314电G5191表示不G5549。G6363令10写数据。G6363令11读数据。G994HD44780G11468G1872容的芯片G7114G5219表如下16读G10378G5589G17767G1849RSL，R/WH，EHG17767G1998D0D7G10378G5589字写G6363令G17767G1849RSL，R/WL，D0D7G6363令G11733，EG20652G14045G1926G17767G1998无读数据G17767G1849RSH，R/WH，EHG17767G1998D0D7数据写数据G17767G1849RSH，R/WL，D0D7数据，EG20652G14045G1926G17767G1998无表5基本G6817作G7114G5219表读写G6817作G7114G5219如图6和图7所示图6读G6817作G7114G521917图7写G6817作G7114G521941602LCD的RAM地G3348G7156G4568及标准字G5223表液晶显示模块是一个G5942显示器G1226，所以在G6203行G8611G7477G6363令G1055前一G4462G16213G11842G16760模块的G5549标G5547为G1314电G5191，表示不G5549，否G2029G8504G6363令G3845G6940。G16213显示字符G7114G16213G1820G17767G1849显示字符地G3348，G1075G4613是G2590G16797模块在G2750G18336显示字符，图8是1602的G1881部显示地G3348。图81602LCDG1881部显示地G3348例如G12544G1120行G12544一个字符的地G3348是40H，G18039G1052是否G11464接写G184940HG4613G2499以G4570光标G4462G1313在G12544G1120行G12544一个字符的G1313G13634G2614G731G17837G7691不行，G3252为写G1849显示地G3348G7114G16213G8726最G20652G1313D718G5670G4462为G20652电G51911所以实G19481写G1849的数据应G16825是01000000B（40H）10000000B80H11000000BC0H。在G4557液晶模块的G2033始化中G16213G1820G16786G13634其显示模式，在液晶模块显示字符G7114光标是自G2172G2503G12239的，无需人工干预。G8611次G17767G1849G6363令前G18129G16213判断液晶模块是否处于G5549的G10378G5589。1602液晶模块G1881部的字符G2469G10995G4396储器（CGROM）已经G4396储了160个不G2528的点阵字符图形，如图1058所示，G17837些字符有阿拉伯数字、英G7003字母的大小写、常用的符号、和日G7003假名等，G8611一个字符G18129有一个固G4462的代G11733，比如大写的英G7003字母“A”的代G11733是01000001B（41H），显示G7114模块把地G334841H中的点阵字符图形显示G1998G7481，我们G4613能看G2052字母“A”A799字符代G11733G994图形G4557应图1951602LCD的一般G2033始化（G3809G1313）G17819G12255延G711415MS写G6363令38H（不检测G5549G1461号）延G71145MS写G6363令38H（不检测G5549G1461号）延G71145MS写G6363令38H（不检测G5549G1461号）以后G8611次写G6363令、读/写数据G6817作均需G16213检测G5549G1461号写G6363令38H显示模式G16786G13634写G6363令08H显示G1863闭写G6363令01H显示G9177G4643写G6363令06H显示光标G12239G2172G16786G13634写G6363令0CH显示G5332及光标G16786G13634A76A1A79A2120A7910LCDA93A2A134A3A9A4第三章、系统的软件设计31主程序流程图A5A6A7A8A10A11A12A13A14A15A17A18A19A81302A20A22A7A8A23A24A25A26A27A28A13A14A15A29AA82A