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1、基于单片机的出租车计价器设计(附源程序)摘要本设计的是一个基于单片机AT89S52的出租车自动计费设计,附有复位电路,时钟电路,键盘电路等。复位电路是单片机的初始化操作,除了正常的初始化外,为摆脱困境,通过复位电路可以重新开始。时钟电路采用12MHz的晶振,作为系统的时钟源,具有较高的准确性。在上电时字符型液晶1602显示最初的起步价，里程收费，等待时间收费三种收费，通过按键可以调整起步价，里程收费，等待时间收费。通过按键模拟出租车的运行，暂停，停止。在1602液晶上可以显示运行的时间，运行时暂停的时间，通过计算可以得出总共的费用和总
2、的路程。在这里主要是以AT89S52单片机为核心控制器，P0口接1602液晶显示模块，P1口接按键的，通过按键输入。关键字AT89S52；1602液晶；出租车计费器ABSTRACTThedesignisbasedonamonolithicintegratedcircuitAT89S52taxibillingdesign,withresetcircuit,clockingcircuit,keyboardcircuit.Resetcircuitisinitialized,besidesthenormaloperationoftheinit
3、ialdilemma,asaforeigner,throughtheresetcircuitcanstartagain.12MHzadoptstheclockcircuit,asasystemofcrystaloscillator,higherclocksource.Thecharactersinthecrystalthattheinitial1602,charges,feesmileagewaitingtime,threebuttonscanbeadjustedbychargingfees,justwaitingtime,milea
4、ge.Throughthesimulationofthetaxi,buttons,stop.SuspensionIntheliquidcrystaldisplaycanrun1602,operationtime,whensuspensioncanbeobtainedbythecomputationofthetotalcost.hereismainlyforthecorecontroller,AT89S52SCMP0mouthafter1602LCDmodule,P1mouthafterthekeys,throughthekeystro
5、ke.Keyword：AT89S52；1602LCD；Taxidevices35目录1课程设计书·······················································································31.1课程设计任务············································································31.2功能要求·········································
6、··········································31.3课程设计方案············································································32硬件电路设计····················································································52.1振荡电路设计········································
7、····································42.2复位电路设计·············································································42.3键盘接口电路·············································································62.4显示电路····················································
8、·······························62.5直流电机电路·····································································
