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標(biāo)題: 請(qǐng)求電機(jī)正反轉(zhuǎn)程序 [打印本頁(yè)]

作者: selko112 時(shí)間: 2008-8-14 15:37

RB0－正轉(zhuǎn)按鈕 RB1－反轉(zhuǎn)按鈕 RB2－停止按鈕 RD0－電動(dòng)機(jī)正轉(zhuǎn) RD1－電動(dòng)機(jī)反轉(zhuǎn)

程序：

INCLUDE”P(pán)16F877”.INC

ORG 0000H

NOP

BSF STATUS,RPO

MOVLW 00H

MOVWF TRISD

MOVLW 07H

MOVWF TRISB

BCF STATUS,RP0

CLRF PORTD

ST NOP

N1 BTFSS PORTB,0

GOTO N3

CALL DELAY10MS

BTFSS PORTB,0

GOTO N3

N2 BTFSC PORTD,1

GOTO N3

BCF PORTD,1

BSF PORTD,0

N3 BTFSS PORTB,1

GOTO N5

CALL DELAY10MS

BTFSS PORTB,1

GOTO N5

N4 BTFSS PORTD,0

GOTO N5

BCF PORTD,0

BSF PORTD,1

N5 BTFSS PORTB,2

GOTO N1

CALL DELAY10MS

BTFSS PORTB,2

GOTO N1

BCF PORTD,0

BCF PORTD,1

GOTO ST
DELAY10MS MOVLW 0DH

MOVWF 20H

LOOP1 MOVLW 0FFH

MOVWF 21H

LOOP2 DECFSZ 21H

GOTO LOOP2

DECFSZ 20H

GOTO LOOP1

RETURN

END
;我是新手，寫(xiě)的不好不要見(jiàn)笑

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