最新单片机设计实例Word格式.docx

最新单片机设计实例Word格式.docx

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ORG000BH

ORG0013H

ORG001BH

ORG0023H

初始化程序;

CLEAR:

RET

主程序;

START:

ACALLCLEAR

STAR1:

MOVP3,#0FFH

JNBP3.0,FUN0

JNBP3.1,FUN1

JNBP3.2,FUN2

JNBP3.3,FUN3;

关闭按纽

JNBF0,STAR1;

曾经有键按下F0置1

FUN0:

LCALLDL10MS;

消岸抖动

JBP3.0,STAR1

WAITL0:

JNBP3.0,WAITL0;

等待键释放

SETBF0

FUN01:

LCALLFUN00

LCALLSTAR1

LJMPFUN01

FUN1:

JBP3.1,STAR1

WAITL1:

JNBP3.1,WAITL1;

FUN10:

LCALLFUN11

LJMPFUN10

FUN2:

JBP3.2,STAR1

WAITL2:

JNBP3.2,WAITL2;

FUN20:

LCALLFUN22

LJMPFUN20

FUN3:

JBP3.3,STAR1

WAITL3:

JNBP3.3,WAITL3;

CLRF0

MOVP1,#0FFH;

关显示

LJMPSTAR1

FUN00:

MOVA,#0FEH

FUN000:

MOVP1,A

LCALLDL05S

JNBACC.7,OUT

RLA

AJMPFUN000

OUT:

FUN11:

FUN111:

JZOUT

ANLA,P1

AJMPFUN111

FUN22:

MOVA,#0AAH

MOVP1,A

LCALLDL30S

CPLA

延时程序;

DL512:

MOVR2,#0FFH

LOOP1:

DJNZR2,LOOP1

DL10MS:

MOVR3,#14H

LOOP2:

LCALLDL512

DJNZR3,LOOP2

DL05S:

MOVR4,#0AH

LOOP3:

LCALLDL10MS

DJNZR4,LOOP3

DL30S:

MOVR5,#03H

LOOP4:

LCALLDL05S

DJNZR5,LOOP4

RET

AT89C2051时钟程序;

显示缓冲单元在70H—75H，70H—71H显示秒，72H—73H显示分，74H—75H显示时

时间计数单元在70H—71H（秒）、76H—77H（分）、78H—79H（时），7AH单元放熄灭符（#0AH）

计数单元采用BCD码计数，定时器T0设置为50MS溢出中断，为秒计数用，定时器T1为调整时闪烁用

P3.7为调整按钮，P1口为字符输出口，采用共阳显示管。

中断入口程序;

ORG0000H

LJMPSTART

ORG0003H

RETI

ORG000BH

LJMPINTT0

ORG0013H

RETI

ORG001BH

LJMPINTT1

ORG0023H

ORG002BH

RETI

;

START:

MOVR0,#70H

MOVR7,#0BH

MOV20H,#00H

CLEARDISP:

MOV@R0,#00H

INCR0

DJNZR7,CLEARDISP

MOV7AH,#0AH

MOVTMOD,#11H

MOVTL0,#0B0H

MOVTH0,#3CH

MOVTL1,#0B0H

MOVTH1,#3CH

SETBEA

SETBET0

SETBTR0

MOVR4,#14H

start1:

LCALLDISPLAY

JNBP3.7,SETMM1

SJMPStart1

SETMM1:

LJMPSETMM

1秒定时程序;

INTT0:

PUSHACC

PUSHPSW

CLRET0

CLRTR0

MOVA,#0B7H;

中断同步修正

ADDA,TL0

MOVTL0,A

MOVA,#3CH

ADDA,TH0

MOVTH0,A

DJNZR4,OUTT0

ADDSS:

MOVR0,#71H

ACALLADD1;

加1程序

MOVA,R3

CLRC

CJNEA,#60H,ADDMM

ADDMM:

JCOUTT0

ACALLCLR0

MOVR0,#77H

ACALLADD1

CJNEA,#60H,ADDHH

ADDHH:

MOVR0,#79H

CJNEA,#24H,HOUR

HOUR:

OUTT0:

MOV72H,76H

MOV73H,77H

MOV74H,78H

MOV75H,79H

POPPSW

POPACC

闪动调时程序;

INTT1:

DJNZR2,INTT1OUT

MOVR2,#06H

CPL02H

JB02H,FLASH1

INTT1OUT:

FLASH1:

JB01H,FLASH2

MOV72H,7AH

MOV73H,7AH

AJMPINTT1OUT

FLASH2:

MOV74H,7AH

MOV75H,7AH

加1程序;

ADD1:

MOVA,@R0

DECR0

SWAPA

ORLA,@R0

ADDA,#01H

DAA

MOVR3,A

ANLA,#0FH

MOV@R0,A

清零程序;

CLR0:

CLRA

时钟调整程序;

SETMM:

cLRET0

LCALLDL1S

JBP3.7,CLOSEDIS

SETBET1

SETBTR1

SET2:

JNBP3.7,SET1

SETB00H

SET4:

JBP3.7,SET3

JNBP3.7,SETHH

MOVR0,#77H;

加1分程序

LCALLADD1

CJNEA,#60H,HHH

HHH:

JCSET4

LCALLCLR0

AJMPSET4

CLOSEDIS:

CLOSE:

JBP3.7,CLOSE

WAITH:

JNBP3.7,WAITH

LJMPSTART1

SETHH:

CLR00H

SETHH1:

JNBP3.7,SET5

SETB01H

SET6:

JBP3.7