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K1 BIT P3.2
ORG 0000H
LJMP MAIN
ORG 0100H
MAIN:
MOV A, #0FEH
LABLE1:
JNB K1, LABLE2
SJMP LABLE1
LABLE2:
MOV P1, A
MOV R3, #04H
LCALL DELAY
RL A
SJMP LABLE1
DELAY:
MOV R4, #100
DELAY1:
MOV R5, #100
DELAY2:
NOP
NOP
NOP
DJNZ R5, DELAY2
DJNZ R4, DELAY1
DJNZ R3, DELAY
RET
END
這些是代碼
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