單片機(jī)課程設(shè)計(jì)報(bào)告

1、成都理工大學(xué)單片機(jī)課程設(shè)計(jì)報(bào)告姓名：XXX班級：測控一班學(xué)號：XXXXXXXXXXXXX日期：2011年12月一.系統(tǒng)設(shè)計(jì)要求1, 基本參數(shù)：電源電壓：DC5V 系統(tǒng)時(shí)鐘：6MHZ 鍵盤：4X 4行列式鍵盤顯示輸出：4位數(shù)碼管和24只發(fā)光二極管動態(tài)顯示擴(kuò)展口： 1個(gè)2，電路特點(diǎn)：輸入：采用4X4行列式鍵盤輸入，各按鍵的功能可根據(jù)用戶需要定義，從而編寫從簡單到復(fù)雜的應(yīng)用試驗(yàn) 程序，特別適合編寫和調(diào)試子程序。輸出：4位數(shù)碼管與24只發(fā)光二級管采用動態(tài)顯示方式，既可學(xué)習(xí)動態(tài)顯示的編程方法，還可以熟悉定時(shí) 中斷的編程方法。拓展口 ：利用P3 口作為擴(kuò)展口，既可作I/O 口擴(kuò)展，也可利用其第二功能進(jìn)行擴(kuò)

2、展，應(yīng)用靈活，可擴(kuò)展性 強(qiáng)。例如用串口可簡單實(shí)現(xiàn)全雙工串口通訊，再加上 INTO、INT1、TO、T1 口可實(shí)現(xiàn)外中斷和計(jì)數(shù)功能。 3,例程使用說明：本電路板上的按鍵，定義了數(shù)字鍵 09和功能鍵F114及“ +”、“- ”鍵，需使單片機(jī)實(shí)現(xiàn)如下功能：F1：計(jì)算功能按F1鍵進(jìn)入計(jì)算功能，數(shù)據(jù)與顯示歸零，按數(shù)字鍵輸入數(shù)據(jù)，按“+”、“-”進(jìn)行加減運(yùn)算,數(shù)碼管顯示鍵入數(shù)據(jù)或運(yùn)算結(jié)果。F2:時(shí)鐘功能按F2鍵后進(jìn)入時(shí)鐘顯示，數(shù)碼管顯示為時(shí)間狀態(tài)F3:時(shí)間設(shè)置功能按F3鍵進(jìn)入時(shí)間設(shè)置功能，當(dāng)前設(shè)置位閃爍，鍵入數(shù)字設(shè)定時(shí)間，設(shè)定完成后按F2確認(rèn)。F4:跑馬燈功能按F4鍵有四種跑馬燈模式循環(huán)切換，當(dāng)然也可以通

3、過編程實(shí)現(xiàn)更多的樣式。系統(tǒng)硬件設(shè)計(jì)1 硬件設(shè)計(jì)思路根據(jù)系統(tǒng)設(shè)計(jì)要求所規(guī)定的硬件硬件設(shè)計(jì)、實(shí)驗(yàn)。進(jìn)行必要的工藝結(jié)構(gòu)設(shè)計(jì)，制作出印刷電路板，組 裝后即完成了硬件設(shè)計(jì)2.硬件電路組成及原理圖系統(tǒng)主要由一塊AT89C51芯片、電源電路、時(shí)鐘電路和復(fù)位電路組成最小系統(tǒng)，由一個(gè)4X4行列式鍵盤、4位七段數(shù)碼管、24個(gè)發(fā)光二級管擴(kuò)展外設(shè)及一個(gè) 8 口的IC插座連接INT0、INT1、T0、T1、RXD TXD電源和地端。流程圖:開始初始化時(shí)鐘、標(biāo)識位初始化 調(diào)用鍵入測試子程序有鍵輸入調(diào)用顯示子程序計(jì)算開啟時(shí)鐘開啟調(diào)用計(jì)算子程序調(diào)用時(shí)鐘子程序按F1鍵進(jìn)入計(jì)算顯示按F2鍵進(jìn)入時(shí)鐘顯示按數(shù)字鍵0-9輸入數(shù)據(jù)按F3

4、鍵進(jìn)入時(shí)間設(shè)置功能按+、-進(jìn)行加減運(yùn)算鍵入數(shù)字設(shè)定時(shí)間顯示數(shù)據(jù)或結(jié)果結(jié)束按F2確定學(xué)習(xí)幫手.系統(tǒng)程序設(shè)計(jì)用等值偽指令定義SUDATOO EQU 40H ;力（減數(shù)）SUDAT01 EQU 41HSUDAT02 EQU 42HSUDAT03 EQU 43HSUDAT10 EQU 44H ;力卩（被減數(shù)）SUDAT11 EQU 45HSUDAT12 EQU 46HSUDAT13 EQU 47HDISPDAT0 EQU 29H ;顯示數(shù)據(jù)區(qū)DISPDAT1 EQU 2AHDISPDAT2 EQU 2BHDISPDAT3 EQU 2CHDISPDAT4 EQU 2DHDISPDAT5 EQU 2EHD

5、ISPDAT6 EQU 2FHDISPLONG EQU 31H ;顯示長度 DISPCON EQU 32H ;顯示計(jì)位 KEYDAT EQU 30H ;鍵碼 HOURH EQU 34H ;時(shí)間數(shù)據(jù) HOURL EQU 35HMINH EQU 36HMINL EQU 37HLEDMOD EQU 39H ;流水燈模式 SUCON EQU 3AH ;輸入計(jì)數(shù) SUBIT EQU 20H.1 ;減標(biāo)示 DP EQU 20H.2 ;秒顯標(biāo)示 KEYBIT EQU 20H.3 ;有鍵碼標(biāo)示 SU EQU 20H.4 ;計(jì)算標(biāo)示 TIME EQU 20H.5 ;時(shí)間標(biāo)示 TIMESET EQU 20H.6

6、;時(shí)間設(shè)置標(biāo)示主程序：ORG 0000HAJMP STARTORG）003HRETIORG）00BHAJMP TIME0ORC0013HRETIORC001BHLJMP TIME1ORC0O23H RETIORC0050HSTART:MOA,#00HMOVR0,#20HMOVR1,#30HLOOP0:MOR0,AINC R0DJNZ R1,LOOP0MOVSP,#50HMOVDISPLONG,#O7SETBRS0SETBRS1MOVR0,#DISPDAT0MOVR2,#200MOVR3,#120MOVR4,#00MOVR5,#00MOVR6,#0FEHMOVR7,DISPLONGCLRRS0M

7、OVR2,#50MOVR3,#30CLRRS1MOVLEDMOD,#02MOVDISPLONG,#07MOVDISPCON,#07MOVKEYDAT,#0FFHSETBTIMEMOVTL0,#0AH ;1EMOVTH0,#0F7HMOVE,#8AH1;開 T0, T1，t-t r 、亠 r、MOVMOD,#11H;定時(shí)方式SETBTR0MOVTL1,#00H ;MOVTH1,#0DCHSETBTR1MAIN:ACALLKEYJNBKEYBIT,MAIN1定時(shí)2.5MS定時(shí)10MSACALL DOKEYMAIN1:JB TIME,MAIN2JB TIMESET,MAIN2JB SU,MAIN3M

8、AIN2: MOV RO,#HOURHMOV R1,#DISPDAT0MOV R2,#04HMAINLOOP:MOV A,R0;時(shí)間轉(zhuǎn)七段碼送顯示數(shù)據(jù)區(qū)MOV DPTR,#TABMOVC A,A+DPTRMOV C,DPMOV ACC.7,CMOV R1,AINC R0INC R1DJNZ R2,MAINLOOPSJMP MAINMAIN3:MOV R0,#SUDAT00 ;計(jì)算數(shù)轉(zhuǎn)段碼送顯區(qū)MOV R1,#DISPDAT0MOV R2,#04HSJMP MAINLOOPTAB:DB 40H,79H,24H,30H,19HDB 12H,02H,78H,00H,10HDB 7FH,7FH,7FH

9、,7FH,7FH,7FH;0A-0FF全黑子程序:(1) 顯示子程序R0顯示數(shù)址,R6位選值,R7顯示計(jì)數(shù)QISPL0NG顯示數(shù)長度QISPDATA0顯示數(shù)據(jù)區(qū)首址DISPLAY:MOVP2,#0FFHMOVP0,R0MOVP2,R6INCR0DJNZR7,DISPLAY1MOVR7,DISPLONGMOVR0,#DISPDAT0MOVR6,#0FEHSJMPDISPOUTDISPLAY1:MOV A,R6RL AMOV R6,ADISPOUT:RET(2) 鍵盤掃描程序KEYDA存放鍵碼,雙鍵按下只認(rèn)前鍵，KEYBIT有鍵標(biāo)示KEY:MOV P1,#0F0HMOV A,P1ORL A,#0F

10、HXRL A,#0FFHJZ KEYOUT0MOV A,#60HLCALL DELAYMOV P1,#0F0HMOV A,P1ORL A,#0FHXRL A,#0FFHJZ KEYOUT0MOV P1,#0FEH ;KEYDAT存放鍵碼JNB P1.4,KEY1JNB P1.5,KEY2JNB P1.6,KEY3JNB P1.7,KEY4MOV P1,#0FDHJNB P1.4,KEY5JNB P1.5,KEY6JNB P1.6,KEY7JNB P1.7,KEY8MOV P1,#0FBHJNB P1.4,KEY9JNB P1.5,KEY10JNB P1.6,KEY11JNB P1.7,KEY1

11、2MOV P1,#0F7HJNB P1.4,KEY13JNB P1.5,KEY14JNB P1.6,KEY15JNB P1.7,KEY16MOV KEYDAT,#0FFHCLR KEYBITKEYOUT0:AJMP KEYOUT1KEY1:MOV KEYDAT,#OAHSJMP KEYOUTKEY2:MOV KEYDAT,#09HSJMP KEYOUTKEY3:MOV KEYDAT,#08HSJMP KEYOUTKEY4:MOV KEYDAT,#07HSJMP KEYOUTKEY5:MOV KEYDAT,#OBHSJMP KEYOUTKEY6:MOV KEYDAT,#06HSJMP KEYOU

12、TKEY7:MOV KEYDAT,#05HSJMP KEYOUTKEY8:MOV KEYDAT,#04HSJMP KEYOUTKEY9:MOV KEYDAT,#0CHSJMP KEYOUTKEY10:MOV KEYDAT,#03HSJMP KEYOUTKEY11:MOV KEYDAT,#02HSJMP KEYOUTKEY12:MOV KEYDAT,#01HSJMP KEYOUTKEY13:MOV KEYDAT,#0DHSJMP KEYOUTKEY14:MOV KEYDAT,#0EHSJMP KEYOUTKEY15:MOV KEYDAT,#00HSJMP KEYOUTKEY16:MOV KEYD

13、AT,#OFH KEYOUT:SETB KEYBITMOV P1,#0F0HMOV A,P1ORL A,#0FHXRL A,#0FFHJNZ KEYOUTMOV A,#100HLCALL DELAYKEYOUT1:RET（3）鍵盤處理,SU計(jì)算標(biāo)志,TIME時(shí)間標(biāo)志,TIMSET時(shí)間設(shè)置標(biāo)志;SUCOF計(jì)算輸入位數(shù)，TSETCON時(shí)間設(shè)置位數(shù)QISPCON顯示位數(shù);SUDAT00-03加數(shù)（減數(shù)）,SUDAT10-13加數(shù)（被減數(shù)）;LEDMO流水燈模式,TSETCON時(shí)間設(shè)置位數(shù) QISPCON1示位數(shù) ;ADDBIT加法標(biāo)示，SUBBIT減法標(biāo)示DOKEY:MOVA,KEYDATCLRCS

14、UBBA,#10H;大于16為錯(cuò)碼JNCDONEXTCLRCMOVA,KEYDATSUBBA,#0AH ;大于10為功能鍵,小于10為數(shù)字鍵JC NEXTMOVB,#03MULABMOVDPTR,#DOFKEY ;功能鍵處理JMPA+DPTRDOFKEY:LJMPDOFKEY1LJMPDOFKEY2LJMPDOFKEY3LJMPDOFKEY4LJMPDOFKEY5LJMPDOFKEY6NOPNOPDONEXT:LJMP DOKEYOUT NEXT:LJMP DOSKEYDOFKEY1:;LCALL TIMDBJNB TIMESETQOFKEY11PUSH PSWSETB RS0SETB RS1

15、MOV R2,#200MOV R3,#120POP PSWDOFKEY11:SETB SU;SUCLR TIME;TIMECLR TIMESET;TIMSETMOV SUCON,#04H;SUCONSETB DP計(jì)算功能計(jì)算標(biāo)志時(shí)間標(biāo)志 時(shí)間設(shè)置標(biāo)志 計(jì)算輸入位數(shù)CLR SUBITMOV SUDAT00,#00HMOV SUDAT01,#00HMOV SUDAT02,#00HMOV SUDAT03,#00HMOV SUDAT10,#00HMOV SUDAT11,#00HMOV SUDAT12,#00HMOV SUDAT13,#00H LJMP DOKEYOUT DOFKEY2:;計(jì)時(shí)功能LCA

16、LL TIMDBJNB TIMESET,DOFKEY21PUSH PSWSETB RS0SETB RS1MOV R2,#200MOV R3,#120POP PSW DOFKEY21:SETB TIMECLR SUCLR TIMESETMOV SUCON,#00HSETB DPLJMP DOKEYOUTDOFKEY3:;時(shí)間設(shè)置功能LCALL TIMDBSETB TIMESETCLR TIMECLR SUMOV SUCON,#OOHSETB DPLJMP DOKEYOUTDOFKEY4:;流水燈功能MOV A,L EDMODCLR CSUBB A,#01HJNC DOFKEY40MOV LEDM

17、OD,#03MOV DISPLONG,#04HLJMP DOKEYOUTDOFKEY40:MOV LEDMOD,A顯示位數(shù)MOV DISPLONG,#07H ;DISPLONGMOV A,L EDMODCJNE A,#02H,DOFKEY41MOV DISPDAT4,#00HMOV DISPDAT5,#00HMOV DISPDAT6,#00HLJMP DOKEYOUTDOFKEY41:MOV DISPDAT4,#24HMOV DISPDAT5,#92HMOV DISPDAT6,#49HLJMP DOKEYOUTDOFKEY5:;加號處理MOV R4,SUDAT00MOV R5,SUDAT01M

18、OV R6,SUDAT02MOV R7,SUDAT03MOV R0,SUDAT10MOV R1,SUDAT11MOV R2,SUDAT12MOV R3,SUDAT13LCALL BADDMOV SUCON,#04HCLR SUBITLJMP DOKEYOUTD0FKEY6:;減號處理MOV R4,SUDAT00MOV R5,SUDAT01MOV R6,SUDAT02MOV R7,SUDAT03MOV R0,SUDAT10MOV R1,SUDAT11MOV R2,SUDAT12MOV R3,SUDAT13LCALL BADDMOV SUCON,#04HSETB SUBITLJMP DOKEYOU

19、T DOSKEY:;JB SU,DOSKEY1JB TIMESETQOSKEY2 ;LJMP DOKEYOUTDOSKEY1:MOV A,SUCONCJNE A,#04H,DOSKEY10MOV SUDAT00,#00HMOV SUDAT01,#00HMOV SUDAT02,#00HMOV SUDAT03,#00H DOSKEY10:MOV A,SUCONJZ DOKEYOUTMOV SUDAT00,SUDAT01MOV SUDAT01,SUDAT02MOV SUDAT02,SUDAT03MOV SUDAT03,KEYDATDEC SUCONLJMP DOKEYOUT DOSKEY2:MOV

20、A,SUCON ;ADD A,SUCONMOV DPTR,#DOSKEY20JMP A+DPTR DOSKEY20:SJMP DOSKEY21SJMP DOSKEY22數(shù)字鍵處理時(shí)間設(shè)定設(shè)定時(shí)間SJMP DOSKEY23SJMP DOSKEY24D0SKEY21:MOV A,KEYDAT ; 設(shè)定小時(shí)高位CLR CSUBB A,#03JNC DOKEYOUTMOV HOURH,KEYDATSJMP DOSKEY25DOSKEY22:MOV A,HOURH ; 設(shè)定小時(shí)低位CJNE A,#02,NE1MOV A,KEYDATCLR CSUBB A,#4JNC DOKEYOUTNE1:MOV HO

21、URL,KEYDATSJMP DOSKEY25DOSKEY23:MOV A,KEYDAT ;設(shè)分高位CLR CSUBB A,#6JNC DOKEYOUTMOV MINH,KEYDATSJMP DOSKEY25DOSKEY24:MOV MINL,KEYDAT ;設(shè)分低位DOSKEY25:LCALL SU10T08LCALL TIMDBINC SUCONMOV A,SUCONCLR CSUBB A,#4JC DOKEYOUTMOV SUCON,#00HDOKEYOUT:CLR KEYBITMOV KEYDAT,#0FFH ;0FFH為無鍵碼指示RET(4) TIME0;用第三組寄存器,MINL分鐘

22、低位,MINH分鐘高位;HOURL小時(shí)低位，HOURHJ、時(shí)高位TIME0:;T0計(jì)時(shí)PUSHACCMOVF0,CPUSHPSWSETBRS0SETBRS1MOVTL0,#0AH ;1E定時(shí)2.5MSMOVTH0,#0F7HSETBTR0ACALL DISPLAY ;0.25MS顯示一位DJNZR2,TIMEOUTMOVR2,#200;200*0.25MS=0.5SJBSU,TIME00CPLDPTIME00:DJNZR3,TIMEOUTMOVR3,#120;120*0.5S=60SINCR4;R4計(jì)分鐘值,滿60向MOVA,R4CLRCSUBBA,#60JCTIME01MOVR4,#00IN

23、CR5;R5計(jì)小時(shí)值TIME01:MOVA,R4 ;將R5值化為十進(jìn)制數(shù)MOVB,#10DIVABMOVMINH,AMOVMINL,BMOVA,R5CLRCSUBBA,#24JCTIME02MOVR5,#00TIME02:MOVA,R5MOVB,#10DIVABMOVHOURH,AMOVHOURL,BTIMEOUT:R5進(jìn)位；R4分鐘數(shù)60,R5小時(shí)數(shù)24 ,R2為2.5MS計(jì)數(shù),R3為0.5S計(jì)數(shù)；DP秒閃標(biāo)示POP PSWMOV C,PSW.1POP ACC（5）TIME1TIME1:;T1PUSHACC;R：MOVF0,C;r3PUSHPSW;FCLRRS0;SETBRS1MOVTL1,

24、#00H;MOVTH1,#0DCHSETBTR1JNBTIMESET,TI10DJNZR2,TI10MOVR2,#50MOVA,SUCONMOVR0,#HOURHADDA,R0MOVR0,AMOVA,R0CJNEA,#0AH,TI11MOVA,R4MOVR0,ASJMPTI10MOVA,R0MOVR4,AMOVR0,#0AHMOVA,L EDMODCJNEA,#02H,TI12DJNZR3,TI1OUTMOVR3,#15ACALLLEDSJMPTI1OUTDJNZR3,TI1OUTMOVR3,#60ACALLLEDRETITI11TI10TI12計(jì)時(shí),用于跑馬燈和控制時(shí)間設(shè)置閃爍 計(jì)數(shù)時(shí)間閃爍

25、頻率 計(jì)數(shù)跑馬燈頻率 保存時(shí)間閃動初值 第二組寄存器定時(shí)10MSTI1OUT:POP PSWMOV C,PSW.1POP ACCRETI(6) DELAYDELAY:;PUSH ACCDELAY1:DJNZ ACC,$POP ACCDJNZ ACC,DELAYRET(7)流水燈子程序 LEDMO模式,流水燈數(shù)據(jù)在LED:MOV A,L EDMODADD A,L EDMODMOV DPTR,#LED0JMP A+DPTRLED0:SJMP MODL1SJMP MODL2SJMP MODL3MOV DISPLONG,#O4HRETRETMODL1:MOV C,DISPDAT6.7 ;MOV A,D

26、ISPDAT4RLC AMOV DISPDAT4,AMOV A,DISPDAT5RLC AMOV DISPDAT5,AMOV A,DISPDAT6RLC AMOV DISPDAT6,ARETMODL2:MOV C,DISPDAT4.0 ;MOV A,DISPDAT6RRC AMOV DISPDAT6,AMOV A,DISPDAT5延時(shí)程序，時(shí)間常數(shù)在ACCDISPDAT4-6右移動左移動RRC AMOV DISPDAT5,AMOV A,DISPDAT4RRC AMOV DISPDAT4,A RETMODL3:燈從左全亮后又到全滅MOV CQISPDAT4.7 ;CPL CMOV A,DISPD

27、AT5RLC AMOV DISPDAT5,AMOV A,DISPDAT6RLC AMOV DISPDAT6,AMOV A,DISPDAT4RLC AMOV DISPDAT4,A RET(8) 十進(jìn)制加法子程序 ;入口 R0-3,R4-7,出口 R4-7SUADD:MOVA,R3ADDA,R7DAAMOVC,ACC.4ANLA,#0FHMOVR7,AMOVA,R2ADDCA,R6DAAMOVC,ACC.4ANLA,#0FHMOVR6,AMOVA,R1ADDCA,R5DAAMOVC,ACC.4ANLA,#0FHMOVR5,AMOVA,R0ADDCA,R4DAAMOV R4,ARET(9) DOBM

28、求補(bǔ)碼DOBM:; 求補(bǔ)碼MOV A,#99HCLR CSUBB A,R4MOV R4,AMOV A,#09HCLR CSUBB A,R5MOV R5,AMOV A,#09HCLR CSUBB A,R6MOV R6,AMOV A,#0AHCLR CSUBB A,R7MOV R7,ARET(10) BUM負(fù)數(shù)顯示數(shù)BUM:;負(fù)數(shù)顯示數(shù)(補(bǔ)碼還原)MOVA,#99HCLRCSUBBA,R4MOVR4,AMOVA,#09HCLRCSUBBA,R5MOVR5,AMOVA,#09HCLRCSUBBA,R6MOVR6,AMOVA,#09HCLRCSUBBA,R7MOVR7,AMOVR0,#00HMOVR1

29、,#00HMOVR2,#00HMOVR3,#01HACALLSUADDANL A,#OFHMOV R4,ARET(11) BADD帶符號十進(jìn)制加法BADD:;帶符號十進(jìn)制加法JNB SUBIT,BADD1 ACALL DOBM ;BADD1:ACALL SUADD ;負(fù)時(shí)求補(bǔ)碼相加ANL A,#0E0HJZ BADD2MOVA,R4ANLA,#0FHORLA,#90HMOVR4,AMOVSUDAT10,R4MOVSUDAT11,R5MOVSUDAT12,R6MOVSUDAT13,R7ACALL BUMMOVSUDAT00,R4MOVSUDAT01,R5MOVSUDAT02,R6MOVSUDAT

30、03,R7RETBADD2:MOVA,R4ANLA,#0FHMOVR4,AMOVSUDAT10,R4MOVSUDAT11,R5MOVSUDAT12,R6MOVSUDAT13,R7MOVSUDAT00,R4MOVSUDAT01,R5MOVSUDAT02,R6MOVSUDAT03,R7RET(12)十進(jìn)制化為SU10T08:;PUSHPSWSETBRS0SETBRS1MOV A,HOURH16進(jìn)制十進(jìn)制化為16進(jìn)制MOVB,#10MULABADDA,HOURLMOVR5,AMOVA,MINHMOVB,#10MULABADDA,MINLMOVR4,APOPPSWRET(13)將時(shí)間計(jì)數(shù)化為十進(jìn)制TIMDBJ將時(shí)間計(jì)數(shù)化為十進(jìn)制PUSHPSWSETBRS0SETBRS1MOVA,R4 ;將R4值化為十進(jìn)制數(shù)MOVB,#10DIVABMOVMINH,AMOVMINL,BMOVA,R5 ;MOVB,#10DIV AB將R5值化為十進(jìn)制數(shù)MOV HOURH,AMOV HOURL,BPOP PSWRETEND四調(diào)試與下載啟動Keil u Vision,在界面新建一個(gè)工程項(xiàng)目，再設(shè)置好工程項(xiàng)目軟硬件調(diào)試環(huán)境，編譯程序聯(lián)機(jī)調(diào)試。在Proteus中按照原理圖放置元器件，設(shè)置好各項(xiàng)參數(shù)，連接好電路圖后，把