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cahhuang02@sina.com
cahhuang02@gs.zzu.edu.cn
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http://www.51c51.com/test/11HUA.htm

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2 ÅܵÆ£¬p1.0---1.7ÁÁµãÁ÷¶¯£º

3 Á÷Ë®µÆ£» p1.0-1.7 ÒÀ´ÎµãÁÁ

4 ½»´íµÈ; p0.O£¬P0.2£¬P0.4£¬P0.6ºÍp0.1£¬P0.3£¬P0.5£¬P0.7ÂÖÁ÷µãÁÁ

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¡¡

;************;

;ÁÁµÆ¿ØÖƳÌÐò;

;************;

;

;************;

;ÖжÏÈë¿Ú³ÌÐò;

;************;

;

ORG 0000H

LJMP START

ORG 0003H

RETI

ORG 000BH

RETI

ORG 0013H

RETI

ORG 001BH

RETI

ORG 0023H

RETI

;

;************;

; ³õʼ»¯³ÌÐò ;

;************;

;

CLEAR: RET

;

;************;

; Ö÷ ³Ì Ðò ;

;************;

;

START:ACALL CLEAR

STAR1:MOV P3,#0FFH

JNB P3.4,FUN0

JNB P3.5,FUN1

JNB P3.2,FUN2

JNB P3.3,FUN3 ;¹Ø±Õ°´Å¦

JNB F0,STAR1 ;Ôø¾­Óмü°´ÏÂF0ÖÃ1

RET

;

FUN0:LCALL DL10MS ;Ïû°¶¶¶¶¯

JB P3.4,STAR1

WAITL0:JNB P3.4,WAITL0 ;µÈ´ý¼üÊÍ·Å

SETB F0

FUN01:LCALL FUN00

LCALL STAR1

LJMP FUN01

;

FUN1:LCALL DL10MS ;Ïû°¶¶¶¶¯

JB P3.5,STAR1

WAITL1:JNB P3.5,WAITL1 ;µÈ´ý¼üÊÍ·Å

SETB F0

FUN10:LCALL FUN11

LCALL STAR1

LJMP FUN10

;

FUN2:LCALL DL10MS ;Ïû°¶¶¶¶¯

JB P3.2,STAR1

WAITL2:JNB P3.2,WAITL2 ;µÈ´ý¼üÊÍ·Å

SETB F0

FUN20:LCALL FUN22

LCALL STAR1

LJMP FUN20

;

FUN3:LCALL DL10MS ;Ïû°¶¶¶¶¯

JB P3.3,STAR1

WAITL3:JNB P3.3,WAITL3 ;µÈ´ý¼üÊÍ·Å

CLR F0

MOV P1,#0FFH ;¹ØÏÔʾ

LJMP STAR1

;

FUN00:MOV A,#0FEH

FUN000:MOV P1,A

LCALL DL05S

JNB ACC.7,OUT

RL A

AJMP FUN000

OUT: RET

;

FUN11:MOV A,#0FEH

FUN111:MOV P1,A

LCALL DL05S

JZ OUT

RL A

ANL A,P1

AJMP FUN111

;

FUN22:MOV A,#0AAH

MOV P1,A

LCALL DL30S

CPL A

MOV P1,A

LCALL DL30S

RET

;

;************;

; ÑÓʱ³ÌÐò ;

;************;

;

DL512:MOV R2,#0FFH

LOOP1: DJNZ R2,LOOP1

RET

DL10MS:MOV R3,#14H

LOOP2: LCALL DL512

DJNZ R3,LOOP2

RET

DL05S:MOV R4,#0AH

LOOP3: LCALL DL10MS

DJNZ R4,LOOP3

RET

DL30S:MOV R5,#03H

LOOP4:LCALL DL05S

DJNZ R5,LOOP4

RET

end