课程设计（论文）-基于单片机计数器及出租车计费器

基于MCU的计数和计程车计费器题目基于MCU的计数和计程车计费器任务11外部脉冲自动计数，自动显示。111设计一个255计数器0255计数，计满后自动清0，重新计数（在数码管中显示）。112设计一个50000计数器050000计数，计满后自动清0，重新计数（在数码管中显示）。12设计一个出租车计费系统起步价为5元（2KM以内），2KM后，08元/05KM要求每500M刷新计费一次，在8位数码管中，前3位显示数码管显示里程数,后3位数码管显示价钱（角，元，十元，百元）硬件资源89S51芯片38译码器74HC138共阴极数码管脉冲信号发生器10K电阻若干硬件资源介绍利用89S51芯片为设计的主体，通过P2口的前三位（P20，P21,P22）通过38译码器进行译码，从而控制位选，在利用P0口进行段选，从而在数码管上显示所需要的数字。二、设计过程1设计255计数器利用T1定时器的第二工作方式2，C/T为1，利用其计数功能，当计数到255后，下一位自动变成0（自动重装初值的功能）软件设计C语言INCLUDE“REG52H“UNSIGNEDCHARCODENUM_TABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05UNSIGNEDCHARNUMVOIDDISPLAYVOIDDELAYUNSIGNEDINTAAVOIDINIT_TIMER/进行定时器的初始化TMOD0X60TH10TL10X00TR11/TF10VOIDMAINP20XFFP00X00INIT_TIMERWHILE1NUMTL1DISPLAYDELAY1/显示函数/VOIDDISPLAYUNSIGNEDCHARX,Y,ZXNUM10YNUM100/10ZNUM/100P20X02P0NUM_TABLEZDELAY1P20X01P0NUM_TABLEYDELAY1P20X00P0NUM_TABLEXDELAY1VOIDDELAYUNSIGNEDINTAAUNSIGNEDINTI,JFORI0IUNSIGNEDINTCODENUM_TABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05UNSIGNEDINTNUM100UNSIGNEDINTI,J,K,X,Y,ZVOIDBCDVOIDDISPLAYVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARI,JFORI0IUNSIGNEDCHARCODETABLE10XBF,0X86,0XDB,0XCF,0XE6,0XED,0XFD,0X87,0XFF,0XEFUNSIGNEDCHARCODETABLE20X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDINTW,X,Y,Z,I,J,K,KM,MONEYVOIDDELAYUNSIGNEDINTAAVOIDINITVOIDBCDVOIDDISPLAY1VOIDDISPLAY2/主函数/VOIDMAININITVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARM,NFORM0M9MONEY50KM0ELSEDISPLAY1DELAY1DISPLAY2VOIDDISPLAY1/显示里程WKM/1000XKM/10010YKM/1010ZKM10P20X07P0TABLE2WDELAY1P20X06P0TABLE2XDELAY1P20X05P0TABLE1Y/这一位后有小数点DELAY1P20X04P0TABLE2ZDELAY1VOIDDISPLAY2/显示费用IMONEY/100JMONEY/1010KMONEY10P20X02P0TABLE2IDELAY1P20X01P0TABLE1J/这一位后有小数点DELAY1P20X00P0TABLE2KDELAY1汇编ORG0000HSJMPMAINORG0030HMOV70H,00HMOV71H,00HMOV72H,00HMOV73H,00HMOV74H,00HMOV75H,00HMAINMOVTMOD,50HMOVTL1,00HSETBTR1LOOPMOVR3,00HMOVA,TL1JZLOOPLCALLBCDLCALLMOMEYLCALLDISPLAYBCDINCR3MOVTL1,00HMOVA,R3MOVB,0AHDIVABMOV70H,BZZZCJNEA,0AH,LOOP1INCR4MOVR3,00HMOV72H,R4RETLOOP1MOV71H,ASJMPBCDRETMONEYCCCJNER3,14H,LOOP2L2MOVA,70HXRLA,00HJZLOOP5XRLA,05HJZLOOP5LOOP5ADDA,08HMOVR5,ARETLOOP2JBCY,L1JNBCY,L2L1RETDISPLAYMOVP2,00HMOVDPTR,TAB2MOVA,70HMOVCA,ADPTRMOVP0,AACALLDELAYMOVP2,01HMOVDPTR,TAB1MOVA,71HMOVCA,ADPTRMOVP0,AACALLDELAYMOVP2,02HMOVDPTR,TAB2MOVA,72HMOVCA,ADPTRMOVP0,AACALLDELAYMOVP2,03HMOVDPTR,TAB2MOVA,73HMOVCA,ADPTRMOVP0,AACALLDELAYMOVP2,04HMOVDPTR,TAB1MOVA,74HMOVCA,ADPTRMOVP0,AACALLDELAYMOVP2,05HMOVDPTR,TAB2MOVA,75HMOVCA,ADPTRMOVP0,AACALLDELAYRETDELAYMOVR4,10LOOP2MOVR5,100LOOP3DJNZR5,LOOP3DJNZR4,LOOP2RETTAB1DB0XBF,0X86,0XDB,0XCF,0XE6,0XED,0XFD,0X87,0XFF,0XEFTAB2DB0X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FEND仿真结果PROTUES三硬件实现10255计数器程序INCLUDE“REG52H“UNSIGNEDCHARCODETABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05UNSIGNEDCHARNUM,FLAGVOIDDISPLAYVOIDDELAYUNSIGNEDINTAASBITDULAP26SBITWELAP27/SBITDP35SBITD1P10/系统初始化/VOIDINIT_TIMERTMOD0X61TH10X00TL10X00TR11TH050000/256TL050000256ET01TR01EA1/TF10VOIDMAIN/P20XFF/P00X00INIT_TIMERWHILE1NUMTL1DISPLAYDELAY1VOIDDISPLAYUNSIGNEDINTBAI,SHI,GEBAINUM/100SHINUM100/10GENUM10WELA1P00XFEWELA0P00X00DULA1P0TABLEBAIDULA0P00XFFDELAY1WELA1P00XFDWELA0P00X00DULA1P0TABLESHIDULA0P00XFFDELAY1WELA1P00XFBWELA0P00X00DULA1P0TABLEGEDULA0P00XFFDELAY1VOIDDELAYUNSIGNEDINTAAUNSIGNEDINTI,JFORI0IUNSIGNEDINTCODETABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05SBITDULAP26SBITWELAP27UNSIGNEDINTNUM0,FLAGSBITD1P10UNSIGNEDINTI,J,K,X,Y,ZVOIDBCDVOIDDISPLAYVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARI,JFORI0IUNSIGNEDCHARCODETABLE10XBF,0X86,0XDB,0XCF,0XE6,0XED,0XFD,0X87,0XFF,0XEFUNSIGNEDCHARCODETABLE20X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDINTW,X,Y,Z,I,J,K,KM,MONEY,FLAG,NUMSBITDULAP26/段选SBITWELAP27/位选SBITD1P10VOIDDELAYUNSIGNEDINTAAVOIDINITVOIDBCDVOIDDISPLAY/主函数/VOIDMAININITVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARM,NFORM0MAAMFORN0N110N/初始化函数/VOIDINITTMOD0X50TH10X00TL10X00TR11KM0MONEY50TH050000/256TL050000256ET01TR01EA1WHILE1WHILETL10X00/动态扫描DISPLAYKMBCD/出租车的计费系统进行设置/VOIDBCDTL10X00IFKM20/2KM以内起步价5元MONEY50DISPLAYELSE/2KM后08元/05KM且每500米计费刷新一次IFKM1050MONEYMONEY8ELSEDISPLAY/VOIDDISPLAY/显示函数WKM/1000XKM/10010YKM/1010ZKM10IMONEY/100JMONEY/1010KMONEY10WELA1P00XFEWELA0P00X00DULA1P0TABLE2XDULA0P00XFFDELAY1WELA1P00XFDWELA0P00X00DULA1P0TABLE1YDULA0P00XFFDELAY1/这位后有小数点WELA1P00XFBWELA0P00X00DULA1P0TABLE2ZDULA0P00XFFDELAY1WELA1P00XF7WELA0P00X00DULA1P0TABLE2IDULA0P00XFFDELAY1WELA1P00XEFWELA0P00X00DULA1P0TABLE1J/这个数后有小数点DULA0P00XFFDELAY1WELA1P00XDFWELA0P00X00DULA1P0TABLE2KDULA0P00XFFDELAY1/VOIDQUFINTERRUPT1/中断函数用来产生脉冲信号由P10产生脉冲提供给P35口NUMWHILENUM10NUM0IFFLAG0D10FLAG1ELSED11FLAG0TH050000/256TL050000256硬件实现图四、心得体会通过此次课程设计，让我学到了很多课堂上更本学不到的东西，仿佛自己一下子成熟了，懂得了做人做事的道理，也懂得了学习的意义，时间的宝贵，人生的真谛。明白人世间一生不可能都是一帆风顺的，只要勇敢去面对人生中的每个驿站在做单片机课程设计之前，我们所学的知识都是理论性的，所以一旦要求把理论性的东西用到实践中来，刚开始就有一定的难度。我在听了老师的部分讲解之后，自己独立地写出了程序并进行了仿真，并且学会了使用KEIL软件和PROTEUS软件进行设计的调试和仿真，让我受益匪浅，并为我做下一个课程设计奠定了基础。我在这次课程设计中感受到最重要的一点是一定要学以致用，把所学知识用到生活中来。发明和创造就是这样产生的。并且，在设计与创造的过程中，遇到困难不要气馁，一定要坚持