基于MCU的計(jì)數(shù)和計(jì)程車計(jì)費(fèi)器題目基于MCU的計(jì)數(shù)和計(jì)程車計(jì)費(fèi)器任務(wù)11外部脈沖自動(dòng)計(jì)數(shù)，自動(dòng)顯示。111設(shè)計(jì)一個(gè)255計(jì)數(shù)器0255計(jì)數(shù)，計(jì)滿后自動(dòng)清0，重新計(jì)數(shù)（在數(shù)碼管中顯示）。112設(shè)計(jì)一個(gè)50000計(jì)數(shù)器050000計(jì)數(shù)，計(jì)滿后自動(dòng)清0，重新計(jì)數(shù)（在數(shù)碼管中顯示）。12設(shè)計(jì)一個(gè)出租車計(jì)費(fèi)系統(tǒng)起步價(jià)為5元（2KM以內(nèi)），2KM后，08元/05KM要求每500M刷新計(jì)費(fèi)一次，在8位數(shù)碼管中，前3位顯示數(shù)碼管顯示里程數(shù),后3位數(shù)碼管顯示價(jià)錢（角，元，十元，百元）硬件資源89S51芯片38譯碼器74HC138共陰極數(shù)碼管脈沖信號發(fā)生器10K電阻若干硬件資源介紹利用89S51芯片為設(shè)計(jì)的主體，通過P2口的前三位（P20，P21,P22）通過38譯碼器進(jìn)行譯碼，從而控制位選，在利用P0口進(jìn)行段選，從而在數(shù)碼管上顯示所需要的數(shù)字。二、設(shè)計(jì)過程1設(shè)計(jì)255計(jì)數(shù)器利用T1定時(shí)器的第二工作方式2，C/T為1，利用其計(jì)數(shù)功能，當(dāng)計(jì)數(shù)到255后，下一位自動(dòng)變成0（自動(dòng)重裝初值的功能）軟件設(shè)計(jì)C語言INCLUDE“REG52H“UNSIGNEDCHARCODENUM_TABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05UNSIGNEDCHARNUMVOIDDISPLAYVOIDDELAYUNSIGNEDINTAAVOIDINIT_TIMER/進(jìn)行定時(shí)器的初始化TMOD0X60TH10TL10X00TR11/TF10VOIDMAINP20XFFP00X00INIT_TIMERWHILE1NUMTL1DISPLAYDELAY1/顯示函數(shù)/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/主函數(shù)/VOIDMAININITVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARM,NFORM0M9MONEY50KM0ELSEDISPLAY1DELAY1DISPLAY2VOIDDISPLAY1/顯示里程WKM/1000XKM/10010YKM/1010ZKM10P20X07P0TABLE2WDELAY1P20X06P0TABLE2XDELAY1P20X05P0TABLE1Y/這一位后有小數(shù)點(diǎn)DELAY1P20X04P0TABLE2ZDELAY1VOIDDISPLAY2/顯示費(fèi)用IMONEY/100JMONEY/1010KMONEY10P20X02P0TABLE2IDELAY1P20X01P0TABLE1J/這一位后有小數(shù)點(diǎn)DELAY1P20X00P0TABLE2KDELAY1匯編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仿真結(jié)果PROTUES三硬件實(shí)現(xiàn)10255計(jì)數(shù)器程序INCLUDE“REG52H“UNSIGNEDCHARCODETABLE100X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6FUNSIGNEDCHARCODEBIT_TABLE60X00,0X01,0X02,0X03,0X04,0X05UNSIGNEDCHARNUM,FLAGVOIDDISPLAYVOIDDELAYUNSIGNEDINTAASBITDULAP26SBITWELAP27/SBITDP35SBITD1P10/系統(tǒng)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/段選SBITWELAP27/位選SBITD1P10VOIDDELAYUNSIGNEDINTAAVOIDINITVOIDBCDVOIDDISPLAY/主函數(shù)/VOIDMAININITVOIDDELAYUNSIGNEDINTAAUNSIGNEDCHARM,NFORM0MAAMFORN0N110N/初始化函數(shù)/VOIDINITTMOD0X50TH10X00TL10X00TR11KM0MONEY50TH050000/256TL050000256ET01TR01EA1WHILE1WHILETL10X00/動(dòng)態(tài)掃描DISPLAYKMBCD/出租車的計(jì)費(fèi)系統(tǒng)進(jìn)行設(shè)置/VOIDBCDTL10X00IFKM20/2KM以內(nèi)起步價(jià)5元MONEY50DISPLAYELSE/2KM后08元/05KM且每500米計(jì)費(fèi)刷新一次IFKM1050MONEYMONEY8ELSEDISPLAY/VOIDDISPLAY/顯示函數(shù)WKM/1000XKM/10010YKM/1010ZKM10IMONEY/100JMONEY/1010KMONEY10WELA1P00XFEWELA0P00X00DULA1P0TABLE2XDULA0P00XFFDELAY1WELA1P00XFDWELA0P00X00DULA1P0TABLE1YDULA0P00XFFDELAY1/這位后有小數(shù)點(diǎn)WELA1P00XFBWELA0P00X00DULA1P0TABLE2ZDULA0P00XFFDELAY1WELA1P00XF7WELA0P00X00DULA1P0TABLE2IDULA0P00XFFDELAY1WELA1P00XEFWELA0P00X00DULA1P0TABLE1J/這個(gè)數(shù)后有小數(shù)點(diǎn)DULA0P00XFFDELAY1WELA1P00XDFWELA0P00X00DULA1P0TABLE2KDULA0P00XFFDELAY1/VOIDQUFINTERRUPT1/中斷函數(shù)用來產(chǎn)生脈沖信號由P10產(chǎn)生脈沖提供給P35口NUMWHILENUM10NUM0IFFLAG0D10FLAG1ELSED11FLAG0TH050000/256TL050000256硬件實(shí)現(xiàn)圖四、心得體會(huì)通過此次課程設(shè)計(jì)，讓我學(xué)到了很多課堂上更本學(xué)不到的東西，仿佛自己一下子成熟了，懂得了做人做事的道理，也懂得了學(xué)習(xí)的意義，時(shí)間的寶貴，人生的真諦。明白人世間一生不可能都是一帆風(fēng)順的，只要勇敢去面對人生中的每個(gè)驛站在做單片機(jī)課程設(shè)計(jì)之前，我們所學(xué)的知識都是理論性的，所以一旦要求把理論性的東西用到實(shí)踐中來，剛開始就有一定的難度。我在聽了老師的部分講解之后，自己獨(dú)立地寫出了程序并進(jìn)行了仿真，并且學(xué)會(huì)了使用KEIL軟件和PROTEUS軟件進(jìn)行設(shè)計(jì)的調(diào)試和仿真，讓我受益匪淺，并為我做下一個(gè)課程設(shè)計(jì)奠定了基礎(chǔ)。我在這次課程設(shè)計(jì)中感受到最重要的一點(diǎn)是一定要學(xué)以致用，把所學(xué)知識用到生活中來。發(fā)明和創(chuàng)造就是這樣產(chǎn)生的。并且，在設(shè)計(jì)與創(chuàng)造的過程中，遇到困難不要?dú)怵H，一定要堅(jiān)持