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  • 2025/5/4 3:44:47

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¼üÅÌ×Ó³ÌÐò

KEYS£º CLR EX0 CLR

EA

£»¹ØÖжÏ

PUSH PSW

PUSH ACC

CC£º

JB

P3.2 AA

LCALL DLY10MS £»Ïû¶¶

BB: JB AA: POP .

SETB 5DH MOV A£¬25H MOV B£¬#10H

DIV A B MOV 52H£¬A MOV A, B MOV

51H, A

MOV R0,#50H

LCALL DIR NOP

LCALL DLY10MS NOP

LCALL DLY10MS JB

P1.7 ,BB

MOV R1,#25H LCALL DAAD1 NOP LCALL DLY10MS AJMP CC

P1.6 CC MOV R1,#25H

LCALL DEEC1

NOP

LCALL DLY10MS AJMP CC

ACC

POP PSW SETB EX0

£»Öá°ÏÔʾÉ趨ֵζÈÖµ±êÖ¾¡±

£»È¡ÔËËãλµÄÖµ

£»BCDÂëת»¯

£»ÏÔʾÉ趨ζÈ.

SETB EA £»³öÕ» RETI

ÏÔʾ×Ó³ÌÐò

DIR: MOV

SCON ,#00H £»Öô®ÐпÚÒÆÎ»¼Ä´æÆ÷״̬ SETB P1.4 £»¿ªÏÔʾ

JB

DL2: MOV DL0: MOV

MOVC A,@A+DPTR MOV LOOP1: JNB CLR

INC MOV MOVC ANL MOV

LOOP2: JNB

CLR INC MOV MOVC MOV

LOOP3: JNB

CLR CLR CLR RET

DL1: MOV

AJMP SEGT: DB ¼ÓÒ»×Ó³ÌÐò

DAAD1: MOV ORL ADD

.

5DH,DL1 £»ÏÔʾÉ趨ζÈ

DPTR,#SEGT A,@R0

SBUF ,A

TI, LOOP1 TI R0 A,@R0

A,@A+DPTR

A, #7FH £»Ê¹Êý´øÐ¡Êýµã SBUF ,A TI,LOOP2 TI R0 A,@R0 A,@A+DPTR

SBUF,A TI,LOOP3 TI P1.4 5DH

50H,#0AH £»Ð¡ÊýλºÚÆÁ

DL2

0C0H ,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,0FFH

A,#00H A,@R1 A,#01H

.

CJNE A,#30H,DAAD2 £»³¬¹ý48¶ÈÁËÂð?

DAAD3: MOV DAA: RET DAAD2: JC

MOV

DAAD3

@R1,#15EH £»³¬¹ý48Ôòת»Øµ½355 @R1,A

AJMP DAA

¼õÒ»×Ó³ÌÐò

DEEC1: MOV

A,@R1 DEC A CJNE A,#15EH,DEEC2 DEEC3: MOV @R1,A DEE : RET DEEC2: JNC DEEC3

MOV

@R1,#30H

AJMP

DEE

T0ÖжÏ×Ó³ÌÐò

PTT0:

CLR EA

PUSH ACC PUSH PSW PUAH DPL PUSH DPH

SETB EA PPP: LCALL SMAP LCALL FILTER MOV A,2AH ;CJNE A,#07H,AAA AJMP BBB

AAA: JC

CCC CJNE

A,#0FEH ,DDD AJMP BBB

DDD: JC

BB

CLR P1.2 SETB 5EH CLR

P1.1

AJMP PPP

.

355¶ÈÁËÂð?

£»µÍÓÚ355Ôòת»Øµ½48

£»Ñ¹Õ»ºó¿ªÖжÏÏìÓ¦¼üÅÌ

£»²ÉÑùÊý¾Ý

È¡²ÉÑùÖµ £»ÏÂÏÞ48±È½Ï £»Ð¡ÓÚ48¶Èת £»ÉÏÏÞ355±È½Ï

£»×ªÖÁ48~355Õý³£·¶Î§´¦Àí355»ÆµÆÁÁ £»ÖñêÖ¾ Æô¶¯·çÉÈ

£»µÍÓÚ£»Êý×ÖÂ˲¨

£»´óÓÚ.

CCC: CLR P1.3 £»Ð¡ÓÚ48ºìµÆÁÁ

SETB 5FH

BBB: CLR P1.0 £»ÖñêÖ¾Æô¶¯µç¯

AJMP

PPP

SETB P1.0 SETB P1.1 SETB P1.2 SETB P1.3 CLR CLR JNB MOV CLR

5EH

5FH £»50~350Ö®¼äÕý³£

20H,EEF £»É趨ζÈСÓÚʵ¼Êֵתµ½·çÉÈ A,29H P1.0

£»´æ·ÅÏà³Ë½á¹ûµÄÊ×Ö·

LCALL PID

LCALL FFF

LOOP10: MOV R0,#56H

MOV R1,#55H £»¸³ÏÔʾ»º³åÇø×î¸ßλµØÖ· LCALL SCACOV £»±ê¶Èת»¯ MOV JB CLR POP

R0,#53H

£»;¸³ÏÔʾÊ×Ö·

CLR DIR

D5H,LOOP10 £»µÈ´ýT1ÖÐ¶Ï EA DPH

POP DPL POP PSW

SETB RETI

EEE: MOV A,28H £»·çÉÈ´¦Àí LCALL FFF CLR

P1.1

AJMP LOOP10

FFF: CRL A £»¸ù¾ÝPID½á¹û¼ÆËãT1³õÖµ INC A MOV TL1,A

EA

POP ACC

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