【導(dǎo)讀】1.1出租車計(jì)價(jià)器概述·········································································1

　　

【正文】 S11MOV A, S11CJNE A, 1,NEXT61LJMP HOU_TNEXT61: CJNE A, 2,NEXT62LJMP MIN_TNEXT62: CJNE A, 3,KEY43MOV S11, 0LJMP KEY_SJKEY43: JB S2, KEY44LCALL T10MSDJB S2, KEY44WAIT32: JNB S2, WAIT32LJMP KEY_MAINKEY44: AJMP HOU_TMIN_T: SETB F0 。調(diào)用定時(shí)延時(shí)標(biāo)志位LCALL T100MSDLCALL T100MSDMOV LEDML, 0AHMOV LEDMH, 0AHLCALL HMS_DIS1。直接調(diào)用顯示，不經(jīng)過拆分程序LCALL T100MSDLCALL T100MSDMOV SEC, 0LCALL HMS_DISJB S3, KEY51MOV A, MINADD A, 1DA AMOV MIN, ACJNE A, 60H, KEY51MOV MIN, 0KEY51: JB S4, KEY52MOV A, MINADD A, 99HDA AMOV MIN, ACJNE A, 99H, KEY52MOV MIN, 59HKEY52: JB S1, KEY53ACALL T10MSDJB S1, KEY53WAIT24: JNB S1, WAIT24INC S11MOV A, S11CJNE A, 1,NEXT71LCALL HOU_TNEXT71: CJNE A, 2,NEXT72LCALL MIN_TNEXT72: CJNE A, 3,KEY53SETB TR0MOV S11, 0LJMP KEY_SJKEY53: JB S2, KEY54LCALL T10MSDJB S2, KEY54WAIT33: JNB S2, WAIT33LJMP KEY_MAINKEY54: AJMP MIN_TTOTIME: PUSH PSWPUSH ACCMOV TH0, 3CHMOV TL0, 0B0HINC MS100MOV A, MS100CJNE A, 10,RETURNMOV MS100,0MOV A, SECADD A, 1DA AMOV SEC,ACJNE A,60H,RETURNMOV SEC,0MOV A, 1HADD A, MINDA AMOV MIN,ACJNE A,60H, RETURNMOV MIN,0MOV A, 1HADD A, HOURDA AMOV HOUR,ACJNE A, 24H,RETURNMOV HOUR,0RETURN: POP ACCPOP PSWRETITO: PUSH PSWPUSH ACCMOV A,1ADD A,M100MOV M100,AMOV A, M100CJNE A, 100,RETURN1MOV M100,0INC 21HMOV A,21HCJNE A, 0AH, RETURN1 。已經(jīng)到了1公里MOV 21H,0MOV A, 1ADD A, DISTANCEDA AMOV DISTANCE,AMOV A, PRICEADD A, COUNTLDA AMOV COUNTL,ACJNE A, 10H,RETURN1MOV COUNTL,0MOV A, 1ADD A, COUNTHDA AMOV COUNTH,ACJNE A, 99H, RETURN1MOV COUNTH,0RETURN1: POP ACCPOP PSWRETITOSTART: PUSH PSWPUSH ACCMOV TH1, 3CHMOV TL1, 0B0HDJNZ 22H, RETURN2 。1S未到返回MOV 22H, 0AHMOV A, 1ADD A, 23HDA AMOV 23H, ACJNE A, 60H, RETURN2MOV 23H, 0MOV A, 1ADD A, 24HDA AMOV 24H,ACJNE A, 10H, RETURN2MOV 24H, 0MOV A, START_PRICEADD A, COUNTLDA AMOV COUNTL,ACJNE A, 10H, RETURN2MOV COUNTL, 0MOV A, 1ADD A, COUNTHDA AMOV COUNTH,ACJNE A, 99H,RETURN2MOV COUNTH,0RETURN2: POP ACCPOP PSWRETIHMS_DIS:PUSHACC PUSHPSWSETBRS1MOV R0,SEC 。時(shí)分秒的拆分(三個(gè)字節(jié))MOV R1,LEDSLMOV R6,03HLOOP1:MOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,ADEC R1DEC R0DJNZR6,LOOP1POP PSWPOP ACCHMS_DIS1: PUSH ACCPUSH PSWMOV R7,06HMOV R0,LEDSLLOOP: MOVA, @R0MOVDPTR,TABMOVCA,@A+DPTRMOV SBUF,ABK: JBCTI,NEXTSJMPBKNEXT: DECR0DJNZR7,LOOPCLRRS1POPPSWPOPACCRETCP_DIS:PUSH ACC PUSH PSWSETB RS1MOV R0,COUNTH 。MOV R1,LEDCOUNT2MOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,AMOV LEDCOUNT1,COUNTLMOV A,LEDCOUNT1 。送總金額低位MOV DPTR,TABMOVC A, @A+DPTRMOV SBUF,AJNB TI,$CLR TIMOV A,LEDCOUNT2 。送總金額中位MOV DPTR,TABMOVC A,@A+DPTRCPL MOV SBUF,AJNB TI, $CLR TIMOV A,LEDCOUNT3 。送總金額高位MOV DPTR,TABMOVC A,@A+DPTRMOVSBUF,AJNB TI,$CLR TICLR RS1MOV SBUF,0FEH 。送短線(短線的字型碼是0FEH)JNB TI, $CLR TIMOV R0,PRICE。單價(jià)拆分(兩個(gè)字節(jié))MOV R1,LEDDANJIALMOV R6,03HMOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,ADEC R1MOV A,LEDDANJIAL 。送單價(jià)低位MOV DPTR,TABMOVC A,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A, LEDDANJIAH 。送單價(jià)高位MOV DPTR,TABMOVCA,@A+DPTRCPL MOV SBUF,AJNB TI,$CLR TIPOP PSWPOP ACCRETDP_DIS:PUSH ACC PUSH PSWSETB RS1MOV R0,PRICE 。單價(jià)的拆分(一個(gè)字節(jié))MOV R1,LEDDANJIALMOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,ADEC R1MOV A,LEDDANJIAL 。送單價(jià)低位MOV DPTR,TABMOVC A,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A,LEDDANJIAH 。送單價(jià)高位MOV DPTR,TABMOVCA,@A+DPTRCPL MOV SBUF,AJNB TI,$CLR TIMOV SBUF,0FEH 。JNB TI, $CLR TIMOV SBUF,0FEH 。送短線JNB TI,$CLR TIMOV R0,DISTANCEMOV R1,LEDDISTANCELMOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,ADEC R1MOV A,LEDDISTANCEL 。送路程低位MOV DPTR,TABMOVC A,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A,LEDDISTANCEH 。送路程高位MOV DPTR,TABMOVC A,@A+DPTRMOVSBUF,AJNB TI,$CLR TICLR RS1POP PSWPOP ACCRETPA_DIS:PUSH ACC PUSH PSWSETB RS1MOV R0,DAY_PRICE 。價(jià)格調(diào)整拆分（三個(gè)字節(jié)）MOV R1,LEDDAY_PLMOV R6,03HLOOP2:MOV A, @R0MOV B, AANL A, 0FHMOV @R1,ADEC R1MOV A, BSWAPAANL A, 0FHMOV @R1,ADEC R1DEC R0DJNZR6,LOOP2POP PSWPOP ACCPA_DIS1:PUSH ACCPUSH PSWMOV A,LEDDAY_PL 。白天單價(jià)MOV DPTR,TABMOVC A,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A, LEDDAY_PHMOV DPTR,TABMOVCA,@A+DPTRCPL MOV SBUF,AJNB TI,$CLR TIMOV A,LEDNIG_PL 。晚上單價(jià)MOV DPTR,TABMOVCA,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A,LEDNIG_PHMOV DPTR,TABMOVC A, @A+DPTRCPL MOV SBUF,AJNB TI,$CLR TIMOV A,LEDW_PL 。中途等待單價(jià)MOV DPTR,TABMOVC A,@A+DPTRMOV SBUF,AJNB TI, $CLR TIMOV A,LEDW_PHMOV DPTR,TABMOVC A,@A+DPTRCPL MOVSBUF,AJNB TI,$CLR TICLR RS1POP PSWPOP ACCRETTAB:DB 11H,0D7H,32H,92H,0D4H,98H,18H,0D1H,10H,90H,0FFHT10MSD: SETBRS0。 10毫秒延時(shí)程序MOVR4,12TM:MOVR3,128TM6:DJNZR3,TM6DJNZR4,TMCLRRS0RETT100MSD: MOV R3, 200D11: MOV R4, 125D12: DJNZ R4, D12DJNZ R3, D11RETEND謝辭 另外，感謝學(xué)校給予我這樣一次機(jī)會(huì)，能夠獨(dú)立的完成一個(gè)課題，并在這個(gè)工程當(dāng)中，給予我們各方面的的幫助，使我們?cè)诩磳㈦x校的最后一段時(shí)間里，能夠更多學(xué)習(xí)一些實(shí)踐應(yīng)用知識(shí)，增強(qiáng)了我們實(shí)踐操作和動(dòng)手應(yīng)用能力，提高了獨(dú)立思考的能力。再一次對(duì)我的母校表示感謝。參考文獻(xiàn)[1]張鑫、華臻、陳書謙．《單片機(jī)原理及應(yīng)用》[M]．電子工業(yè)出版社，2005．P110~136．[2]丁元杰、吳大偉．《單片微機(jī)實(shí)題集與實(shí)驗(yàn)指導(dǎo)書》[M]．機(jī)械工業(yè)出版社， 2004．P124~125．３８