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P. 195
OFF3: JNB P0.2,OFF3
AJMP OK
;-------------------------
SUB4: MOV R1,#32H ;50 步
MOV P2,#03H ;MC1,MC2 ON
MOV P1,#99H ; 4
XX4: RR A
MOV P3,A
MOV R5,#01H
ACALL DELAY1
DJNZ R1,XX4
MOV R5,#10H ;2S
ACALL DELAY
MOV P2,#00H
MOV P1,#C0H
OFF4: JNB P0.2,OFF4
AJMP BEGIN
;------------------------
DELAY: MOV R6,#FAH
DE1: MOV R7,#FAH
DE2: DJNZ R7,DE2
JNB P0.3,STOP
DJNZ R6,DE1
JNB P0.3,STOP
DJNZ R5,DELAY
JNB P0.3,STOP
RET
;------------------------
STOP: MOV SP,#07H
AJMP BEGIN
;------------------------
DELAY1: MOV R6,#60H
DE11: MOV R7,#60H
DE22: DJNZ R7,DE22
JNB P0.3,STOP
DJNZ R6,DE11
JNB P0.3,STOP
DJNZ R5,DELAY1
JNB P0.3,STOP
