数显简易频率计设计制作论文 实训论文

A1A0A2A3A4A5A6A7A6A8A9A1A0A3A4A5A6A7A6A11A101数显简易频率计设计制作论文学校职业学院班级电气自动化姓名XXX学号指导教师2010年10月A12A13A14A15A16A17A18A19A18A20A21A12A13A15A16A17A18A19A18A22A232目录一摘要2二引言4三设计要求6四硬件设计7五原理图9六程序流程图11七程序设计13八调试阶段1硬件调试162软件调试16九实验总结17十参考文献18A12A13A14A15A16A17A18A19A18A20A21A12A13A15A16A17A18A19A18A22A233一摘要利用芯片设计制作能够四位计数显示被测脉冲的频率。利用多孔实验板设计焊接制作简易频率计。用PROTEL99SE电路设计软件画设计电路。用PROTEL99SE电路设计软件设计该电路的印刷PCB电路图。本实验的知识点为555定时电路的工作原理，计数器，单稳态触发器，运放，计数译码显示等单元电路的设计方法和参数计算、检测、调试。1复习数字电路中单稳态触发器、时钟发生器及计数器、译码显示器等部分内容。2分析数显频率计电路的组成、各部分功能及工作原理。3列出数显频率计电路的测试表格和调试步骤。标出所用芯片引脚号。4用EWB或MULTISIM设计电路并进行仿真。关键词AT89S52单片机、数码G12661A24A25A26A27A28A29A30A31A30A32A33A24A25A27A28A29A30A31A30A34A354二引言G19555G11540电G4388G6228G7427的发G4649，电G4388元器件的G12193G12879G17246G7481G17246多，G19610成G5242G7388G7481G17246G20652，所G9053及电路的发G2655G16847G1075G17246G7481G17246G20652，G13792电G4388G2390G2709的G7368G7044G2620G7411G1075G17246G7481G17246G11713，G1889G980G11487G2746G2846G1268G13491的设计方法G4448G3342电路的功能设计、G17935G17765设计、G5627能分析、时G5219测试G11464G14279印制电路板的设计G994调试，G19512G1114设计G2620G7411G17819G19283G1209G3818G1075G993G3838G13475G8994。G10628G3324，电G4388G1147G2709G5062和计算机G1147G2709G13051G4506G11468G17842，G1523G2173EG39AG708EG79G72G70G87G85G82G81G76G70G39G72G86G76G74G81AG88G87G82G80G68G87G76G82G81电G4388设计G14270G2172G2282G709软件G19512G1114G2499G1209G4448成G1268G13491的设计G3818，G17836G2499G1209进行多G12193测试，G3926元器件的G13781G2282试验、印制电路板的G9213G5242分G5079和电G11925G1872容G5627测试等等。G10628G1207电G4388G6228G7427的发G4649G5062G13475进G1849G1114片G990G13007G13491G11SG92G86G87G72G80G16G82G81G16G38G75G76G83G12的时G1207，G3835G4410G18336G1268G13491的电G4388G6228G7427实验方法的G6925进G2063G993容G13543。为G8504，G6117G1216G3324实验中引G1849G1114G15406G6323电G4388G6228G7427，试图G13485G4410生G5326G12447G980G12193G1852G7044的实验G16278G5577，G1209G1427G4410生G8617G1006G2530G2499G1209G7368G5567G3332图实验接G17724。G15406G6323电G4388G6228G7427G71712G19世纪末出G10628的G7044事物。犹由于计算机G5627价比的G993断提G20652，使得这G980G6228G7427G1209走进G3835G4410的实验室。G19555G11540这G980G6228G7427的G1114解G994接受，它G3324G3835G4410电工电G4388实验证据G2746那个的G3332位将会G17246G7481G17246重要。G15406G6323电G4388实验台G7171G7171G980G12193利用G3324计算机G990运行的电路仿真软件俩进行硬件实验的G2709台。由于仿真软件G2499G1209逼真G3332模G6323各G12193电G4388元器件G1209及G980起仪表，从G13792G993需要任何真实的元器件G994仪器，就G2499G1209进行电路、数字电路、模G6323电路课程中的各G12193实验。它具有功能G1852、成本低、效率G20652、易G4410易用及G1427于G4410习、G1427于开G4649综合G5627或设计G5627设宴等A36A37A38A39A40A41A42A43A42A44A45A36A37A39A40A41A42A43A42A46A475优点。它G993仅G2499G1209作为G10628行的各G12193实验的G980G12193补充G994G1207替手段，G13792且G2499G1209作为发G2655的电G4388G13007G13491的设计、仿真G994实验的实用手段，G2499G1209实G10628电G4388电路G13007G13491的EG39A。这G7171当今电G4388G13007G13491的必然发G4649方向。加拿G3835IG81G87G72G85G68G70G87G76VG72IG80G68G74G72TG72G70G75G81G82G79G82G74G76G72G86公司出G2709的EG79G72G70G87G85G82G81G76G70G86WG82G85KBG72G81G70G75G7171G980G12193典型的G15406G6323电G4388实验台下面G6117G1216就G1209它的MG88G79G87G76G86G76G807版本G11G980下简称MG88G79G87G76G86G76G80G12为例G7481介绍它的基本功能和用法由于MG88G79G87G76G86G76G80的功能很强,限于篇幅的原因,许多操作G990的G6117细节G993G2499能面面俱到,这些细节只有考G3835家G14270己去钻研/摸索和总结。本实验的知识点为555定时电路的工作原理，计数器，单稳态触发器，运放，计数译码显示等单元电路的设计方法和参数计算、检测、调试。1复习数字电路中单稳态触发器、时钟发生器及计数器、译码显示器等部分内容。2分析数显频率计电路的组成、各部分功能及工作原理。3列出数显频率计电路的测试表格和调试步骤。标出所用芯片引脚号。4用EWB或MULTISIM设计电路并进行仿真。A36A37A38A39A40A41A42A43A42A44A45A36A37A39A40A41A42A43A42A46A476三设计要求本实验的知识点为555定时电路的工作原理，计数器，单稳态触发器，运放，计数译码显示等单元电路的设计方法和参数计算、检测、调试。1复习数字电路中单稳态触发器、时钟发生器及计数器、译码显示器等部分内容。2分析数显频率计电路的组成、各部分功能及工作原理。3列出数显频率计电路的测试表格和调试步骤。标出所用芯片引脚号。4用EWB或MULTISIM设计电路并进行仿真。5设计G980个数显频率计电路，要求能够测量1HZG142791G19KHZ的正弦波，三角波，方波等信号的频率，峰值为G195V5V。6精G5242G33241HZG1209内。7数码G12661显示输G1849信号的频率。8、分析每个单元的设计要求并用所G13485的元器件设计出各单元电路和整体电路，并G3324计算机G990进行仿真。9、G4557单元电路进行调试，G11464到G9397G17287设计要求，G16772G5417各电路等G17935G17765功能、波G5430图等参数。1G19、G5465各单元电路工作正G5132G2530，G1889将有G1863电路G17892G13435G17842接起G7481，并进行测试。A48A49A50A51A52A53A54A55A54A56A57A48A49A51A52A53A54A55A54A58A597四硬件设计1单元子电路如图2、3、4、5所示。CT7TL2TH6VC5GND1RD4VCC8OUT355551K5K01U001UVCC1HZ1CLR21CKA11QA31CKB41QB51QC61QD774LS3902CLR142CKA152QA132CKB122QB112QC102QD974LS3901CLR21CKA11QA31CKB41QB51QC61QD774LS3902CLR142CKA152QA132CKB122QB112QC102QD974LS390图11HZ时钟产生电路7411K1K91KFXCT7TL2TH6VC5GND1RD4VCC8OUT3U6555VCCVSS1N414810K001UVCCPULSE图2放大整形电路A60A61A62A63A64A65A66A67A66A68A69A60A61A63A64A65A66A67A66A70A718A7B1C2D6LE5BI4LT3A13B12C11D10E9F15G14CD4511ABFCGDEDPY1234567ABCDEFG8DPDP510A7B1C2D6LE5BI4LT3A13B12C11D10E9F15G14CD4511ABFCGDEDPY1234567ABCDEFG8DPDP510A7B1C2D6LE5BI4LT3A13B12C11D10E9F15G14CD4511ABFCGDEDPY1234567ABCDEFG8DPDP510A7B1C2D6LE5BI4LT3A13B12C11D10E9F15G14CD4511ABFCGDEDPY1234567ABCDEFG8DPDP510VCC1CP11R71EN21QA31QB41QC51QD645181CP11R71EN21QA31QB41QC51QD645182CP92R152EN102QA112QB122QC132QD1445182CP92R152EN102QA112QB122QC132QD144518PULSECRLE图3计数译码显示电路A1B2CLR3CEXT14REXT/CEXT15Q13Q474LS12301U1KVCC1HZA9B10CLR11CEXT6REXT/CEXT7Q5Q1274LS12301U1KVCCLECR图4主控制电路A72A73A74A75A76A77A78A79A78A80A81A72A73A75A76A77A78A79A78A82A839五原理图（2）选择单片机型号和所需外围器件型号，设计单片机硬件电路原理图。采用MCS51系列单片机AT89S51作为主控制器，外围电路器件包括数码管驱动、独立式键盘、复位电路等。硬件电路原理图如下图所示。图5简易频率计的硬件电路原理图数码管驱动采用2个四联共阴极数码管显示，由于单片机驱动能力有限，采用74HC244作为数码管的驱动。在74HC244的7段码输出线上串联100欧姆电阻起限流作用。1A121A241A361A482A1112A2132A3152A4171Y1181Y2161Y3141Y4122Y192Y272Y352Y431G12G19U3HC2441A121A241A361A482A1112A2132A3152A4171Y1181Y2161Y3141Y4122Y192Y272Y352Y431G12G19U4HC244C9A2B6D11E12F3G8H10COM17COM34COM25COM41LED4SCHC9A2B6D11E12F3G8H10COM17COM34COM25COM41U6LED4SCHLED_ALED_BLED_CLED_DLED_ELED_FLED_GLED_HLED_A1LED_B1LED_C1LED_D1LED_E1LED_F1LED_G1LED_H1R2100R3100R4100R6100R7100R8100R9100R10100LED_A1LED_B1LED_C1LED_D1LED_E1LED_F1LED_G1LED_H1LED_A1LED_B1LED_C1LED_D1LED_E1LED_F1LED_G1LED_H1L_COM1L_COM2L_COM3L_COM4L_COM5L_COM6L_COM7L_COM8L_COM1L_COM2L_COM3L_COM4L_COM5L_COM6L_COM7L_COM8LED_J0LED_J1LED_J2LED_J3LED_J5LED_J6LED_J7LED_J4EA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P10/T1P11/T2P123P134P145P156P167P178P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728PSEN29ALE/P30TXD11RXD10U289S52VCCLED_J0LED_J1LED_J2LED_J3LED_ALED_BLED_CLED_DLED_ELED_FLED_GLED_HY1110592C1CAPC2CAPR1110KR1100C322UVCCS1RESETRSTRSTLED_J4LED_J5LED_J6LED_J7A84A85A86A87A88A89A90A91A92A93A94A95A96A97A98A99A98A100A101A92A93A95A96A97A98A99A98A102A10310P0口用于输出7段LED共阴极显示代码，P2口用于输出低电平有效的位选码。09的7段LED共阴极显示代码3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH。采用单片机P32管脚来检测脉冲。A104A105A106A107A108A109A110A111A110A112A113A104A105A107A108A109A110A111A110A114A11511六程序流程图图6为简易数显频率计电路的逻辑框图。按功能分成5个单元电路进行分析。图6简易数显频率计电路的逻辑框图设计提示1、秒振荡电路应能输出频率为1HZ、幅度为5V的时钟脉冲，要求G16835G5058G993G17241G17819G19G17G19G191G54。为提G20652G12946度，G2499用555设计G980个输出频率为1G19G19G19G19HZ的G3822G16868振荡器，G1889G17902G178191G19G19G19G19分频（1G19G19G19G19进制计数器）G13792G5483G20521HZ的时钟脉冲。2、G6930G3835G6984G5430电路能G6238G7380G4579幅G1552G6930G3835G2052G6521G178295V，G5194G6984G5430为脉冲G1461号。G22、G16805码显示电路G7380G3822显示G28G28G28G28，需G23片G37G38G39G16805码器和G23个数码管。G23、主控制电路由G1016个单G12295G5589G16314G2469器G13464成，能G3827在1秒G1881G4448成计数器的复位、G19157G4396控制。G12255G5219设计G5617路主G12255G5219G993G7041G7609G16822INT0G1025G7041G16843求G7643G5547（IE0）G2040G7041A116A117A118A119A120A121A122A123A118A119A124A125A126A127A128A129A130A118A119A131A132A133A118A1191HZA134A135A136A137A138A139A140A141A142A143A144A145A146A138A139A147A148A149A150A151A152A153A154A153A155A156A147A148A150A151A152A153A154A153A157A15812脉冲G7171G2554G2052来，G1209G980G2476G18339G4557G2052来的脉冲进行计数，G5415G12544G980个脉冲来时，G2563动G4462时器的计时，G5415G12544N个脉冲来时，G1584G8502G4462时器的计时，G1889G7693G6466G4462时器的G9334出G8437数G2476G18339为T1_CNTG5483G2052N个脉冲所G2356的时G19400G1552。G5415G4462时器T1G2563动G1055G2530，G1025G7041G7393G2165G12255G5219G5332G3999G5049作，G4462时G8611G9334出G980G8437，G2476G18339为T1_CNTG14270动G36981，G5194G2033G3999G2282G4462时器的G2033G1552TH1和TL1。主G12255G5219流G12255图A159A160A161A162A163A164A163A165A166A167A168A169A170A171A172T1A173A174A175A175A176A177A178A179A180A181A182A183INT0A184A185A186A187IE1A188A189A190A191A192A193A188A189NA191A192A193A188YA194A178A170A171A172T1A173A174A175A192A193A195A175A166A167A196NYA195A197A198A199A196NNYG1025G7041G7393G2165G12255G5219A147A148A149A150A151A152A153A154A153A155A156A147A148A150A151A152A153A154A153A157A15813七程序设计ORG0000HAJMPMAINORG0013HAJMPINTT1ORG0100HX3MOVP1,0E7HACALLDELAYDJNZR2,X3MOVR2,05X4MOVP1,0B7HACALLDELAYMOVP1,0F7HACALLDELAYDJNZR2,X4RETIINTT1JNBP33,PUSHP1PUSHTH1PUSHTL1PUSH03HMOVA,00A200A201A202A203A204A205A206A207A206A208A209A200A201A203A204A205A206A207A206A210A21114MOVR2,40L2MOVP1,00HCLRP20ACALLDELAYMOVP1,0FFHACALLDELAYMAINMOVTCON,00HMOVTMOD,00HMOVIE,84L1MOVR2,10X1MOVP1,7EHACALLDELAYDJNZR2,X1MOVR2,05X2MOVP1,7DHACALLDELAYMOVP1,7FHACALLDELAYDJNZR2,X2MOVR2,25JBP33,L3JNBP33,A200A201A202A203A204A205A206A207A206A208A209A200A201A203A204A205A206A207A206A210A21115AJMPBPL3DJNZR2,L2BPPOP03HPOPTL1POPTH1POPP1SETBP20RETIDELAYMOVR3,200MOVTMOD,00HMOVTH1,63HMOVTL1,18HSETBTR1LP1JBCTF1,LP2SJMPLP1LP2MOVTH1,63HMOVTL1,18HDJNZR3,LP1RETENDA200A201A202A203A204A205A206A207A206A208A209A200A201A203A204A205A206A207A206A210A21116八调试阶段在单片机G5332G2469G17819G12255G1025,单片机系G13491的硬件G16855G16809和G17731件G16855G16809G7171G1016个G19762G5132G18337要的G4630G19766，G1120G13785G7171G993能分G5332的。G16780G3822硬件G19181G16835G7171在G17731件G16855G16809G1025G15999G2469G10628和G13428G8503的。G1306G17902G5132G7171G1820G6502G19512G7138显的硬件G6937G19568G1209G2530,G1889和G17731件G13479G2524起来G16855G16809G1209进G980G8505G6502G19512G6937G19568。1硬件调试硬件G16855G16809主要G6363G6937G19568的G6502G19512，G17837G12879G6937G19568G5460G5460由于设计和G2164G5049制G7507G17819G12255G1025G5049G14414G5627G19181G16835所G17908成的，主要包括G19181线、G5332路、G11713路。G6502G19512的方法G7171首G1820将G2164G5049的印制G7507认真G4557照原理图,看G1016G13785G7171G2554G980致。应特别注意电源系G13491检G7609,G1209防G8502电源G11713路和极G5627G19181G16835,G5194G18337点检G7609系G13491总线，G7171G2554G4396在相互G1055G19400G11713路或与其它G1461号线路G11713路。此外，还有G2499能G7171元器件买来时就已坏了或G7171安装G19181G16835,G17908成器件烧坏，G2499G1209采取检G7609元器件与设计要求的型号、规格和安装G7171G2554G980致。上述G6937G19568在必要时G2499G1209利用数字万用表的G11713路测G16809功能,来缩G11713G6502G19512G6937G19568的时G19400。2软件调试G17731件G16855G16809主要G6363的G7171G12255G5219的书写、修改与G4448善，使其符G2524G10628实的要求。G7693G6466已经学习的单片机G12255G5219编写方法进行编写，我们G17902G5132应用的G7171模拟仿真器，然G2530将编写好的G12255G5219导入仿真G17731件，利用仿真G17731件观察，G7380G2530将G17731件与硬件相G13479G2524，进行G6984体G16855G16809，G16855G16809的G13479果要G8503G5132G12295G4462，避免出G10628G993必要的损失。A212A213A214A215A216A217A218A219A218A220A221A212A213A215A216A217A218A219A218A222A22317九实验总结G17902G17819G980周的实训，我G4557本专业的理论有了更深的理解，学会了G12255G5219的编写编G12255G17731件的应用及硬件的G16855G16809与修改，G5194G2164G1209实际操作，使G14270己在熟练G12255度上有了很G3835提G20652。在实际操作G1025也G2469G10628了很G3822的G993足G1055处，例如，G4557制图画图的生疏，阻碍了G5049作的进G12255；照图焊G6521G980G4462要做G2052细心耐心，G6984体美观G3835方；论文的书