單片機在線系統AY-MPU89S51E課件

實驗用硬件平臺（含USB接口寫入線）蜂鳴器驅動器ADEEPROM232電平轉換晶振繼電器實驗用硬件平臺（含USB接口寫入線）蜂鳴器驅動器ADEEPR1實驗用硬件平臺（含并口寫入線和電源）實驗用硬件平臺（含并口寫入線和電源）2單片機在線系統AY-MPU89S51EAT89S52單片機（跳線接上排針時）6位數碼管動態(tài)顯示（P0輸出字形、P2.0~5選擇位）8位LED顯示（P1）6位按鍵輸入（P2.7~2，P3.3）EEPROM：256字節(jié)（IIC接口，P3.2P3.4）8位AD（串行接口）P3.5~7蜂鳴器（P1.7）、繼電器RS232接口（P3.1、P3.2）溫度傳感器單片機在線系統AY-MPU89S51EAT89S52單片機（3顯示部分232接口驅動+繼電器顯示部分232接口驅動+繼電器4單片機在線系統AY-MPU89S51E課件5單片機在線系統AY-MPU89S51E課件6單片機在線系統AY-MPU89S51E課件7流水燈實驗（實驗1、2）1、掌握51單片機如何控制信號輸出。2、掌握KeilC集成開發(fā)環(huán)境的使用。3、掌握51開發(fā)平臺的使用。4、8個發(fā)光管（L1~L8）接在P1的0~7，為0時點亮。5、功能：首先點亮L1、然后L2…、最后是L8接著點亮L8、然后是L7L6…L1如此循環(huán)，間隔0.1~1.0秒流水燈實驗（實驗1、2）1、掌握51單片機如何控制信號輸出8實驗1：流水燈實驗（匯編程序）ORG000HSTART: MOVA,#0FFH CLRC MOVR2,#08HLOOP: RLCA MOVP1,A;輸出至P1口 LCALLDELAY;調用延遲子程序（延遲100毫秒） DJNZR2,LOOP MOVR2,#07H;設右移7次LOOP1:RRCA MOVP1,A;輸出至P1口 LCALLDELAY DJNZR2,LOOP1 JMPSTART;跳回到START，再一次循環(huán)。DELAY:MOVR4,#200;延遲子程序（100毫秒）250*2*200=500*200us D1:MOVR5,#248 ;=50*2ms=100ms DJNZR5,$ ;2us DJNZR4,D1 ;2us RETEND實驗1：流水燈實驗（匯編程序）ORG000H9流水燈實驗（C程序）#include"reg52.h"voidDelay(){ unsignedchari,j; for(i=0;i<255;i++) for(j=0;j<255;j++);}voidmain(){ unsignedchari,dat; while(1) { dat=0x01; for(i=0;i<8;i++) {P1=~dat; //L1isfirstlight,thenL2L3…L8 dat=dat<<1; Delay(); } dat=0x80; for(i=0;i<8;i++) {P1=~dat; //L8isfirstlight,thenL7L6…L1 dat=dat>>1; Delay(); } }}流水燈實驗（C程序）#include"reg52.h" d10查表法點亮LED給定表格（33個8位數）為1則點亮相應的發(fā)光二極管間隔0.3~0.9秒查表法點亮LED給定表格（33個8位數）11實驗2：流水燈實驗（匯編程序）BEEPBITP2.0BUFF_LED_LPEQU21H;亮燈循環(huán)寄存器org000hJMPSTARTORG100H;----------------------------------------start:movP1,#0ffh;初始化MCU端口MOVA,#00H;初始化寄存器MOVPSW,#00HMOVIE,#00HMOVSP,#30HMOVBUFF_LED_LP,#00HLOOP:MOVDPTR,#TAB_A_LAMP;設置亮燈花型列表地址(32種)MOVA,BUFF_LED_LP;查詢方式讀取花型MOVCA,@A+DPTRCPLAMOVP1,A ;LED小燈控制口LCALLDEL1SINCBUFF_LED_LPMOVA,BUFF_LED_LPCJNEA,#32,LOOPMOVBUFF_LED_LP,#00HJMPLOOP實驗2：流水燈實驗（匯編程序）BEEPBIT12實驗2：流水燈實驗（匯編程序）續(xù)TAB_A_LAMP:DB00111100B,10000001B,11000011B,11100111B,11111111B,11100111B,11000011B,10000001B,00000000BDB00011000B,00111100B,01111110B,11111111B,00000000B,10101010B,10101010B,11001100BDB10000000B,11000000B,11100000B,11110000B,11111000B,11111100B,11111110B,11111111BDB11111110B,11111100B,11111000B,11110000B,11100000B,11000000B,10000000B,00000000BdeL1S:MOVR5,#03H;延時子程序(約0.5秒)DEL1S0:movR6,#0ffhDEL1S1:movR7,#0ffhdjnzR7,$djnzR6,del1S1DJNZR5,DEL1S0;CPLBEEPretEND實驗2：流水燈實驗（匯編程序）續(xù)13實驗2：流水燈實驗（C程序）#include"reg52.h"codeunsignedchartab[]={0x3c,0x81,0xc3,0xe7,0xff,0xe7,0xc3,0x81,0x00, 0x18,0x3c,0x7e,0xff,0x00,0xaa,0xaa,0xcc, 0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff, 0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00};voiddelay(){ unsignedchari,j,k; for(i=0;i<2;i++) for(j=0;j<255;j++) for(k=0;k<255;k++);}voidmain(){ unsignedchari; while(1) { for(i=0;i<33;i++) { P1=~tab[i]; delay(); } }}實驗2：流水燈實驗（C程序）#include"reg52.14實驗5：按鍵應用實驗（匯編）

KEYBITP3.3SW1BITP2.7 ;P2.2 byhtqORG000HSTART:movsp,#40hmovp2,#0ffhmovp3,#0ffhMOVP1,#0ffh;clrkeyWAIT:;JBKEY,$;等候按鍵! byhtqJBSW1,$lcalldelaycplP1.0JNBSW1,$ ;waitkeyisreleasedlcalldelay ;byhtqJMPwaitDELAY:MOVR3,#200D1:MOVR4,#200DJNZR4,$DJNZR3,D1RETEND功能：按下SW1一次，發(fā)光管L1點亮或熄滅實驗5：按鍵應用實驗（匯編）KEYBITP3.15實驗5：按鍵應用實驗（C）//keySW1isdown,LED1isswap(onoroff)#include"reg52.h"#defineucharunsignedcharsbitKEY=P3^3;sbitSW1=P2^7;sbitLED1=P1^0;voidDelay(){ uchari,j; for(i=0;i<200;i++) for(j=0;j<200;j++);}voidmain(){ KEY=0; while(1) { while(SW1); Delay(); LED1=!LED1; while(!SW1); Delay(); }}實驗5：按鍵應用實驗（C）//keySW1isdown16;checkall6key ,lightcorrespondLEDs,editbyhtq2009.9.4keydat equ22hKEYBITP3.3 ORG000HSTART:movsp,#40hmovp2,#0ffhmovp3,#0ffhMOVP1,#0ffh;clrkeyWAIT:;JBKEY,$;等候按鍵! byhtq mova,P2 cpl a ;ifsomekeyisdown,thenthebitis0 anl a,#0fch mov keydat,a ; movP0,a jz nokey ;thedownkeyis1;somekeyisdown jb keydat.7,sw1 ;sw1isdown jb keydat.6,sw2 ;sw2isdown jb keydat.5,sw3 ;sw3isdown jb keydat.4,sw4 ;sw4isdown jb keydat.3,sw5 ;sw5isdown jb keydat.2,sw6 ;sw6isdown sjmp nokey實驗5：按鍵應用實驗（keylight1.asm）;checkall6key ,lightcorre17sw1: cpl p1.0 sjmp nokey1sw2: cpl p1.1 sjmp nokey1sw3: cpl p1.2 sjmp nokey1sw4: cpl p1.3 sjmp nokey1sw5: cpl p1.4 sjmp nokey1sw6: cpl p1.5nokey1:calldelay ;byhtqnokey:JMPwaitDELAY: mov R2,#5d2: MOVR3,#200D1:MOVR4,#200DJNZR4,$DJNZR3,D1 djnz r2,d2RETENDsw1:18實驗5：按鍵應用實驗（keylight1.c）//checkall6key ,lightcorrespondLEDs,editbyhtq2009.9.18#include"reg52.h"#defineucharunsignedcharsbitKEY=P3^3;sbitSW1=P2^7;sbitLED1=P1^0;sbitLED2=P1^1;sbitLED3=P1^2;sbitLED4=P1^3;sbitLED5=P1^4;sbitLED6=P1^5;bdataucharKeyDat;voidDelay(){ uchari,j; for(i=0;i<200;i++) for(j=0;j<200;j++);}voidmain(){ KEY=0; while(1) { KeyDat=P2; P0=KeyDat; //ifsomekeyisdown,thenthebitis0 KeyDat=(~KeyDat)&0xfc; //ifsomekeyisdown,thenthebitis1 Delay(); if(KeyDat!=0)//somekeyisdown { if(KeyDat==0x80) //sw1// if(KeyDat^7==1) //sw1 LED1=!LED1; elseif(KeyDat==0x40) //sw2 LED2=!LED2; elseif(KeyDat==0x20) //sw3 LED3=!LED3; elseif(KeyDat==0x10) //sw4 LED4=!LED4; elseif(KeyDat==0x08) //sw5 LED5=!LED5; elseif(KeyDat==0x04) //sw6 LED6=!LED6; else P1=0xff; Delay(); } }}實驗5：按鍵應用實驗（keylight1.c）//check19實驗13八段數碼管動態(tài)顯示（1）99倒計時：99、98…0、99P0.0~7分別對應數碼管的a~f、dpP2.7~2分別對應6個數碼管：LED1~LED66個數碼管的a~f、dp相連共陽P2.7為0，點亮P0口為0的字段（如要顯示0，則P0輸出為：11000000B=0xc0實驗13八段數碼管動態(tài)顯示（1）99倒計時：99、98…02099倒計時：主程序部分 MIAOEQU21HGEWEIEQU22HSHIWEIEQU23HSCANLEDBIT01HORG000H;ORG偽指令使用于程序定位JMPSTARTORG0BHJMPTIMER0;定時0中斷入口地址START:MOVSP,#40H;設定堆棧指針MOVTMOD,#01H;設定定時器1為工作方式1MOVTH0,#HIGH(65536-5000)MOVTL0,#LOW(65536-5000)SETBTR0MOVIE,#10000010BMOVR7,#200MOVMIAO,#99AJMP$99倒計時：主程序部分 MIAOEQU2199倒計時：中斷程序部分TIMER0:PUSHACC;定時器1中斷服務子程序PUSHPSWMOVTH0,#HIGH(65536-5000)MOVTL0,#LOW(65536-5000)DJNZR7,TIM0_LP;not1sMOVR7,#200 DJNZMIAO,TIM0_LPMOVMIAO,#99;TIM0_LP:MOVA,MIAOLCALLBIN_BCDMOVSHIWEI,AMOVGEWEI,BCPLSCANLEDJBSCANLED,SCAN_L1JMPSCAN_L2SCAN_L1:MOVP2,#01111111B;顯示十位MOVA,SHIWEIJMPEND_SCANSCAN_L2:MOVP2,#10111111B;顯示個位MOVA,GEWEIEND_SCAN:MOVDPTR,#TABLEMOVCA,@A+DPTRMOVP0,APOPPSWPOPACCRETIBIN_BCD:MOVB,#10DIVABRETTABLE:DB0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90HEND99倒計時：中斷程序部分TIMER0:PUSHACC2299倒計時（實驗13）C程序#include"reg52.h"bitSecFlag;unsignedcharCount4ms;unsignedchardisp_buff[2];unsignedchardisp_cnt; //0..1unsignedcharsec;codeunsignedcharTab1[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xA7,0xA1,0x86,0x8E};//;數碼管顯示字型表codeunsignedcharTab[2]={0x7f,0xbf};voidT0_service(void)interrupt1{ TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); Count4ms=Count4ms+1; if(Count4ms==250) { Count4ms=0; SecFlag=1; } P2=Tab[disp_cnt];//disp P0=Tab1[disp_buff[disp_cnt]]; disp_cnt=disp_cnt+1; if(disp_cnt==2) disp_cnt=0;}voidFillDispBuffer(void){ disp_buff[0]=sec/10; disp_buff[1]=sec%10; }voidChangeTime(void){ SecFlag=0; sec=sec-1; if(sec==255) sec=99; FillDispBuffer();}voidmain(){ //initial TMOD=0x01; TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); TR0=1; ET0=1; EA=1; sec=99; FillDispBuffer(); while(1) { if(SecFlag) ChangeTime(); }}99倒計時（實驗13）C程序#include"reg52.23}voidChangeTime(void){ SecFlag=0; sec=sec-1; if(sec==255) sec=99; FillDispBuffer();}voidmain(){ //initial TMOD=0x01; TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); TR0=1; ET0=1; EA=1; // sec=99; FillDispBuffer(); while(1) { if(SecFlag) ChangeTime(); }}}24實驗14電子時鐘設計6個數碼管顯示時、分、秒6個按鍵分別對時、分、秒進行加1、減1設定6按鍵SW1、SW6分別對應于P2.7~P2.2蜂鳴器：P2.0，為0時鳴響；問題：C程序中，是如何控制蜂鳴器的按鍵時鳴響的？實驗14電子時鐘設計6個數碼管顯示時、分、秒25C程序：變量定義部分#include"reg52.h"sbitKey=P3^3;bitKeyDownFlg;bitSecFlag;unsignedcharCount4ms;unsignedchardisp_buff[6];unsignedchardisp_cnt; //0..5unsignedcharhour,min,sec;unsignedcharBeep_cnt;unsignedcharP2_buff;unsignedcharKeyBuff;codeunsignedcharTab1[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xA7,0xA1,0x86,0x8E};//;數碼管顯示字型表codeunsignedcharTab[6]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb};C程序：變量定義部分#include"reg52.h"26C程序：定時器0中斷服務子程序voidT0_service(void)interrupt1{ TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); Count4ms=Count4ms+1; if(Count4ms==250) { Count4ms=0; SecFlag=1; } P2_buff=Tab[disp_cnt]; if(KeyDownFlg) { P2_buff=P2_buff&0xfe; //Buzzerison Beep_cnt=Beep_cnt+1; if(Beep_cnt==100) //Buzzerisoff KeyDownFlg=0; } //disp P2=P2_buff; P0=Tab1[disp_buff[disp_cnt]]; disp_cnt=disp_cnt+1; if(disp_cnt==6) disp_cnt=0;}C程序：定時器0中斷服務子程序voidT0_service27C程序：主程序部分voidmain(){ //initial disp_cnt=0; Count4ms=0; hour=0; min=0; sec=0; // TMOD=0x01; TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); TR0=1; ET0=1; EA=1; while(1) { if(SecFlag) ChangeTime(); if(!Key) DealKey(); }}C程序：主程序部分voidmain()28按鍵檢測及處理voidDealKey(void){ KeyBuff=P2; if(KeyDownFlg) return; if((KeyBuff&0x80)!=0x80) // hour=hour+1; if((KeyBuff&0x40)!=0x40) // hour=hour-1; if((KeyBuff&0x20)!=0x20) // min=min+1; if((KeyBuff&0x10)!=0x10) // min=min-1; if((KeyBuff&0x08)!=0x08) // sec=sec+1; if((KeyBuff&0x04)!=0x04) // sec=sec-1; //checkdata hour=CheckData(hour,24); min=CheckData(min,60); sec=CheckData(sec,60); FillDispBuffer(); Beep_cnt=0; KeyDownFlg=1;}按鍵檢測及處理voidDealKey(void)29實驗14電子時鐘設計(shizhong1.asm)BUFF_KEYEQU21H;鍵盤鍵BUFF_LED1EQU22H;數碼管顯示緩存BUFF_LED2EQU23HBUFF_LED3EQU24HBUFF_LED4EQU25HBUFF_LED5EQU26HBUFF_LED6EQU27HBUFF_LED_LPEQU28H;T0鍵盤顯示掃描緩存HOREQU30H;小時值緩存MINEQU31H;分鐘值緩存SECEQU32H;秒值緩存 MS equ33hF_BEEPBIT01HLED_PORTEQUP0DIG_PORTEQUP2KEY_PORTEQUP2SW1BITP2.7SW2BITP2.6SW3BITP2.5SW4BITP2.4SW5BITP2.3SW6BITP2.2BEEPBITP2.0KEYBITP3.3實驗14電子時鐘設計(shizhong1.asm)BUFF30主程序：初始化部分ORG000HJMPMAINORG00BHJMPT0_INTORG100HMAIN:MOVSP,#40HMOVPSW,#00HMOVR0,#7FH;初始化RAM區(qū),CLR_RAM:MOVA,#00HMOV@R0,ADJNZR0,CLR_RAMMOVP1,0FFH;INITMOVP2,0FFHMOVP0,0FFHMOVP3,0FFHMOVTMOD,#21hMOVTH0,#240;T0=4MSMOVTL0,#96SETBTR0SETBET0SETBEA主程序：初始化部分ORG000H31主程序：按鍵檢測與處理（1）WAIT_KEY:JBKEY,$;等候按鍵!JNBSW1,SW1_OKJNBSW2,SW2_OKJNBSW3,SW3_OKJNBSW4,SW4_OKJNBSW5,SW5_OKAJNBSW6,SW6_OKAJMPWAIT_KEYSW5_OKA:JMPSW5_OKSW6_OKA:JMPSW6_OKSW1_OK:MOVA,HORCJNEA,#24,SW1_OVERMOVHOR,#00HSETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW1_OVER:INCHOR;時加1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW2_OK:MOVA,HORCJNEA,#00,SW2_OVERMOVHOR,#23SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW2_OVER:DECHOR;時減1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW3_OK:MOVA,MINCJNEA,#59,SW3_OVERMOVMIN,#00HSETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEY主程序：按鍵檢測與處理（1）WAIT_KEY:JBK32SW3_OVER:INCMIN;分加1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW4_OK:MOVA,MINCJNEA,#00,SW4_OVERMOVMIN,#59SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW4_OVER:DECMIN;分減1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW5_OK:MOVA,SECCJNEA,#59,SW5_OVERMOVSEC,#00HSETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW5_OVER:INCSEC;秒加1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW6_OK:MOVA,SECCJNEA,#00,SW6_OVERMOVHOR,#59SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYSW6_OVER:DECSEC;時減1SETBF_BEEPCLRBEEPLCALLDELSETBBEEPCLRF_BEEPJMPWAIT_KEYDEL:MOVR5,#02;為演示方便,人為插入的延時DEL01:MOVR6,#200DEL02:MOVR7,#200DJNZR7,$DJNZR6,DEL02DJNZR5,DEL01RETSW3_OVER:INCMIN;分加33中斷程序：修改時間部分T0_INT:PUSHACCPUSHPSWMOVTH0,#240;T0=4MSMOVTL0,#96INCBUFF_LED_LPMOVA,BUFF_LED_LPCJNEA,#250,CONT_SCAN;250*4MS=1SMOVBUFF_LED_LP,#00HINCSECMOVA,SECCJNEA,#60,CONT_SCANMOVSEC,#00HINCMINMOVA,MINCJNEA,#60,CONT_SCANMOVMIN,#00HINCHORMOVA,HORCJNEA,#24,CONT_SCANMOVHOR,#00H中斷程序：修改時間部分T0_INT:PUSHACC34中斷程序：填充顯示緩沖區(qū)CONT_SCAN:MOVA,SECLCALLBIN_BCDMOVBUFF_LED6,BMOVBUFF_LED5,AMOVA,MINLCALLBIN_BCDMOVBUFF_LED4,BMOVBUFF_LED3,AMOVA,HORLCALLBIN_BCDMOVBUFF_LED2,BMOVBUFF_LED1,AMOVA,BUFF_LED_LPMOVB,#06DIVABMOVA,BRLAMOVDPTR,#TAB_SCANJMP@A+DPTR中斷程序：填充顯示緩沖區(qū)CONT_SCAN:MOVA,35中斷程序：動態(tài)顯示TAB_SCAN:AJMPSCAN_L1AJMPSCAN_L2AJMPSCAN_L3AJMPSCAN_L4AJMPSCAN_L5AJMPSCAN_L6SCAN_L1:MOVDIG_PORT,#01111111BMOVA,BUFF_LED1JMPEND_SCANSCAN_L2:MOVDIG_PORT,#10111111BMOVA,BUFF_LED2JMPEND_SCANSCAN_L3:MOVDIG_PORT,#11011111BMOVA,BUFF_LED3JMPEND_SCANSCAN_L4:MOVDIG_PORT,#11101111BMOVA,BUFF_LED4JMPEND_SCANSCAN_L5:MOVDIG_PORT,#11110111BMOVA,BUFF_LED5JMPEND_SCANSCAN_L6:MOVDIG_PORT,#11111011BMOVA,BUFF_LED6END_SCAN:MOVDPTR,#TAB_LEDMOVCA,@A+DPTRMOVLED_PORT,AJNBF_BEEP,EXIT_T0CLRBEEPEXIT_T0:POPPSWPOPACCRETITAB_LED: DB0C0H,0F9H,0A4H,0B0H,99H,92H;數碼管顯示字型表 DB82H,0F8H,80H,90H,88H,83H,0A7H DB0A1H,86H,8EH

中斷程序：動態(tài)顯示TAB_SCAN:AJMPSCAN_36實驗19AD轉換器的使用功能：對輸入的電壓進行AD轉換，并將結果（0～255）用數碼管進行顯示使用ADC0832雙通道，8位AD轉換器，單+5V供電，Vref=5VAD輸入模擬電壓范圍：0～5V5V對應：255串行接口（4線）CS（P3.5）CLK（P2.1）DI（P3.6）DO（P3.7）實驗19AD轉換器的使用功能：對輸入的電壓進行AD轉換，37ADC0832接口時序ADC0832接口時序38最大的問題動態(tài)顯示資源與AD轉換器沖突AD轉換器與單片機接口的實現最大的問題動態(tài)顯示資源與AD轉換器沖突39實驗19AD轉換器的使用(ad.c)#include"reg52.h"sbitADC_CS=P3^5;sbitADC_CLK=P2^1;sbitADC_DI=P3^6;sbitADC_DO=P3^7;bitSecFlag;bitF_ADC_CLK;unsignedcharCount4ms;unsignedchardisp_buff[6];unsignedchardisp_cnt; //0..5unsignedcharhour,min,sec;unsignedcharBeep_cnt;unsignedcharP2_buff;unsignedcharADData;codeunsignedcharTab1[17]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xA7,0xA1,0x86,0x8E,0xff};//;數碼管顯示字型表codeunsignedcharTab[6]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb};實驗19AD轉換器的使用(ad.c)#include"40定時器0中斷服務函數voidT0_service(void)interrupt1{ TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); Count4ms=Count4ms+1; if(Count4ms==50) { Count4ms=0; SecFlag=1; } P2_buff=Tab[disp_cnt];

if(!F_ADC_CLK) P2_buff=P2_buff&0xfd; //disp P2=P2_buff; P0=Tab1[disp_buff[disp_cnt]]; disp_cnt=disp_cnt+1; if(disp_cnt==6) disp_cnt=0;}完成定時（生成1s時間，主函數中每秒進行一次AD轉換）掃描數碼管定時器0中斷服務函數voidT0_service(void41主函數與其他函數voidmain(){ //initial disp_cnt=0; Count4ms=0; hour=0; min=0; sec=0; // TMOD=0x01; TH0=(65536-4000)>>8; TL0=(unsignedchar)(65536-4000); TR0=1; ET0=1; EA=1; while(1) { if(SecFlag) { SecFlag=0; AD(); FillDispBuffer(); } }}voidFillDispBuffer(void){ disp_buff[0]=16; //blank disp_buff[1]=16; disp_buff[2]=16; disp_buff[3]=ADData/100; disp_buff[4]=(ADData%100)/10; disp_buff[5]=ADData%10;}voidpulse(void){ unsignedchari; F_ADC_CLK=1; ADC_CLK=1; i=2; while(i-->0); F_ADC_CLK=0; ADC_CLK=0; i=2; while(i-->0);}主函數與其他函數voidmain()voidFillDi42AD轉換函數voidAD(void){ unsignedcharret_dat; unsignedchari; ret_dat=0; ADC_CS=0; i=5; ADC_CS=1; while(i-->0); ADC_CS=0; ADC_DI=1; pulse(); pulse(); pulse(); for(i=0;i<8;i++) { ret_dat=ret_dat<<1; pulse(); if(ADC_DO) ret_dat=ret_dat|0x01; } ADData=ret_dat; if((ret_dat&0x01)==0x01) ret_dat=0x80; else ret_dat=0x00; for(i=0;i<7;i++) { ret_dat=ret_dat>>1; pulse(); if(ADC_DO) ret_dat=ret_dat|0x80; } ADC_CS=1; ADC_CLK=0; ADC_DO=1; ADC_DI=1;}AD轉換函數voidAD(void) ADData=ret43實驗用硬件平臺（含USB接口寫入線）蜂鳴器驅動器ADEEPROM232電平轉換晶振繼電器實驗用硬件平臺（含USB接口寫入線）蜂鳴器驅動器ADEEPR44實驗用硬件平臺（含并口寫入線和電源）實驗用硬件平臺（含并口寫入線和電源）45單片機在線系統AY-MPU89S51EAT89S52單片機（跳線接上排針時）6位數碼管動態(tài)顯示（P0輸出字形、P2.0~5選擇位）8位LED顯示（P1）6位按鍵輸入（P2.7~2，P3.3）EEPROM：256字節(jié)（IIC接口，P3.2P3.4）8位AD（串行接口）P3.5~7蜂鳴器（P1.7）、繼電器RS232接口（P3.1、P3.2）溫度傳感器單片機在線系統AY-MPU89S51EAT89S52單片機（46顯示部分232接口驅動+繼電器顯示部分232接口驅動+繼電器47單片機在線系統AY-MPU89S51E課件48單片機在線系統AY-MPU89S51E課件49單片機在線系統AY-MPU89S51E課件50流水燈實驗（實驗1、2）1、掌握51單片機如何控制信號輸出。2、掌握KeilC集成開發(fā)環(huán)境的使用。3、掌握51開發(fā)平臺的使用。4、8個發(fā)光管（L1~L8）接在P1的0~7，為0時點亮。5、功能：首先點亮L1、然后L2…、最后是L8接著點亮L8、然后是L7L6…L1如此循環(huán)，間隔0.1~1.0秒流水燈實驗（實驗1、2）1、掌握51單片機如何控制信號輸出51實驗1：流水燈實驗（匯編程序）ORG000HSTART: MOVA,#0FFH CLRC MOVR2,#08HLOOP: RLCA MOVP1,A;輸出至P1口 LCALLDELAY;調用延遲子程序（延遲100毫秒） DJNZR2,LOOP MOVR2,#07H;設右移7次LOOP1:RRCA MOVP1,A;輸出至P1口 LCALLDELAY DJNZR2,LOOP1 JMPSTART;跳回到START，再一次循環(huán)。DELAY:MOVR4,#200;延遲子程序（100毫秒）250*2*200=500*200us D1:MOVR5,#248 ;=50*2ms=100ms DJNZR5,$ ;2us DJNZR4,D1 ;2us RETEND實驗1：流水燈實驗（匯編程序）ORG000H52流水燈實驗（C程序）#include"reg52.h"voidDelay(){ unsignedchari,j; for(i=0;i<255;i++) for(j=0;j<255;j++);}voidmain(){ unsignedchari,dat; while(1) { dat=0x01; for(i=0;i<8;i++) {P1=~dat; //L1isfirstlight,thenL2L3…L8 dat=dat<<1; Delay(); } dat=0x80; for(i=0;i<8;i++) {P1=~dat; //L8isfirstlight,thenL7L6…L1 dat=dat>>1; Delay(); } }}流水燈實驗（C程序）#include"reg52.h" d53查表法點亮LED給定表格（33個8位數）為1則點亮相應的發(fā)光二極管間隔0.3~0.9秒查表法點亮LED給定表格（33個8位數）54實驗2：流水燈實驗（匯編程序）BEEPBITP2.0BUFF_LED_LPEQU21H;亮燈循環(huán)寄存器org000hJMPSTARTORG100H;----------------------------------------start:movP1,#0ffh;初始化MCU端口MOVA,#00H;初始化寄存器MOVPSW,#00HMOVIE,#00HMOVSP,#30HMOVBUFF_LED_LP,#00HLOOP:MOVDPTR,#TAB_A_LAMP;設置亮燈花型列表地址(32種)MOVA,BUFF_LED_LP;查詢方式讀取花型MOVCA,@A+DPTRCPLAMOVP1,A ;LED小燈控制口LCALLDEL1SINCBUFF_LED_LPMOVA,BUFF_LED_LPCJNEA,#32,LOOPMOVBUFF_LED_LP,#00HJMPLOOP實驗2：流水燈實驗（匯編程序）BEEPBIT55實驗2：流水燈實驗（匯編程序）續(xù)TAB_A_LAMP:DB00111100B,10000001B,11000011B,11100111B,11111111B,11100111B,11000011B,10000001B,00000000BDB00011000B,00111100B,01111110B,11111111B,00000000B,10101010B,10101010B,11001100BDB10000000B,11000000B,11100000B,11110000B,11111000B,11111100B,11111110B,11111111BDB11111110B,11111100B,11111000B,11110000B,11100000B,11000000B,10000000B,00000000BdeL1S:MOVR5,#03H;延時子程序(約0.5秒)DEL1S0:movR6,#0ffhDEL1S1:movR7,#0ffhdjnzR7,$djnzR6,del1S1DJNZR5,DEL1S0;CPLBEEPretEND實驗2：流水燈實驗（匯編程序）續(xù)56實驗2：流水燈實驗（C程序）#include"reg52.h"codeunsignedchartab[]={0x3c,0x81,0xc3,0xe7,0xff,0xe7,0xc3,0x81,0x00, 0x18,0x3c,0x7e,0xff,0x00,0xaa,0xaa,0xcc, 0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff, 0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00};voiddelay(){ unsignedchari,j,k; for(i=0;i<2;i++) for(j=0;j<255;j++) for(k=0;k<255;k++);}voidmain(){ unsignedchari; while(1) { for(i=0;i<33;i++) { P1=~tab[i]; delay(); } }}實驗2：流水燈實驗（C程序）#include"reg52.57實驗5：按鍵應用實驗（匯編）

KEYBITP3.3SW1BITP2.7 ;P2.2 byhtqORG000HSTART:movsp,#40hmovp2,#0ffhmovp3,#0ffhMOVP1,#0ffh;clrkeyWAIT:;JBKEY,$;等候按鍵! byhtqJBSW1,$lcalldelaycplP1.0JNBSW1,$ ;waitkeyisreleasedlcalldelay ;byhtqJMPwaitDELAY:MOVR3,#200D1:MOVR4,#200DJNZR4,$DJNZR3,D1RETEND功能：按下SW1一次，發(fā)光管L1點亮或熄滅實驗5：按鍵應用實驗（匯編）KEYBITP3.58實驗5：按鍵應用實驗（C）//keySW1isdown,LED1isswap(onoroff)#include"reg52.h"#defineucharunsignedcharsbitKEY=P3^3;sbitSW1=P2^7;sbitLED1=P1^0;voidDelay(){ uchari,j; for(i=0;i<200;i++) for(j=0;j<200;j++);}voidmain(){ KEY=0; while(1) { while(SW1); Delay(); LED1=!LED1; while(!SW1); Delay(); }}實驗5：按鍵應用實驗（C）//keySW1isdown59;checkall6key ,lightcorrespondLEDs,editbyhtq2009.9.4keydat equ22hKEYBITP3.3 ORG000HSTART:movsp,#40hmovp2,#0ffhmovp3,#0ffhMOVP1,#0ffh;clrkeyWAIT:;JBKEY,$;等候按鍵! byhtq mova,P2 cpl a ;ifsomekeyisdown,thenthebitis0 anl a,#0fch mov keydat,a ; movP0,a jz nokey ;thedownkeyis1;somekeyisdown jb keydat.7,sw1 ;sw1isdown jb keydat.6,sw2 ;sw2isdown jb keydat.5,sw3 ;sw3isdown jb keydat.4,sw4 ;sw4isdown jb keydat.3,sw5 ;sw5isdown jb keydat.2,sw6 ;sw6isdown sjmp nokey實驗5：按鍵應用實驗（keylight1.asm）;checkall6key ,lightcorre60sw1: cpl p1.0 sjmp nokey1sw2: cpl p1.1 sjmp nokey1sw3: cpl p1.2 sjmp nokey1sw4: cpl p1.3 sjmp nokey1sw5: cpl p1.4 sjmp nokey1sw6: cpl p1.5nokey1:calldelay ;byhtqnokey:JMPwaitDELAY: mov R2,#5d2: MOVR3,#200D1:MOVR4,#200DJNZR4,$DJNZR3,D1 djnz r2,d2RETENDsw1:61實驗5：按鍵應用實驗（keylight1.c）//checkall6key ,lightcorrespondLEDs,editbyhtq2009.9.18#include"reg52.h"#defineucharunsignedcharsbitKEY=P3^3;sbitSW1=P2^7;sbitLED1=P1^0;sbitLED2=P1^1;sbitLED3=P1^2;sbitLED4=P1^3;sbitLED5=P1^4;sbitLED6=P1^5;bdataucharKeyDat;voidDelay(){ uchari,j; for(i=0;i<200;i++) for(j=0;j<200;j++);}voidmain(){ KEY=0; while(1) { KeyDat=P2; P0=KeyDat; //ifsomekeyisdown,thenthebitis0 KeyDat=(~KeyDat)&0xfc; //ifsomekeyisdown,thenthebitis1 Delay(); if(KeyDat!=0)//somekeyisdown { if(KeyDat==0x80) //sw1// if(KeyDat^7==1) //sw1 LED1=!LED1; elseif(KeyDat==0x40) //sw2 LED2=!LED2; elseif(KeyDat==0x20) //sw3 LED3=!LED3; elseif(KeyDat==0x10) //sw4 LED4=!LED4; elseif(KeyDat==0x08) //sw5 LED5=!LED5; elseif(KeyDat==0x04) //sw6 LED6=!LED6; else P1=0xff; Delay(); } }}實驗5：按鍵應用實驗（keylight1.c）//check62實驗13八段數碼管動態(tài)顯示（1）99倒計時：99、98…0、99P0.0~7分別對應數碼管的a~f、dpP2.7~2分別對應6個數碼管：LED1~LED66個數碼管的a~f、dp相連共陽P2.7為0，點亮P0口為0的字段（如要顯示0，則P0輸出為：11000000B=0xc0實驗13八段數碼管動態(tài)顯示（1）99倒計時：99、98…06399倒計時：主程序部分 MIAOEQU21HGEWEIEQU22HSHIWEIEQU23HSCANLEDBIT01HORG000H;ORG偽指令使用于程序定位JMPSTARTORG0BHJMPTIMER0;定時0中斷入口地址START:MOVSP,#40H;設定堆棧指針MOVTMOD,#01H;設定定時器1為工作方式1MOVTH0,#HIGH(65536-5000)MOVTL0,#LOW(65536-5000)SETBTR0MOVIE,#10000010BMOVR7,#200MOVMIAO,#99AJMP$99倒計時：主程序部分 MIAOEQU6499倒計時：中斷程序部分TIMER0:PUSHACC;定時器1中斷服