標題:
單片機89c51流水燈程序
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作者:
mmzz
時間:
2017-11-21 15:51
標題:
單片機89c51流水燈程序
MOV A,#0FEH
LOOP:MOV P1,A
PUSH PSW
MOV PSW,#08H
ACALL DELAY
POP PSW
RL A
SJMP LOOP
DELAY:MOV R0,#100
DEL1:MOV R1,#10
DEL2:MOV R2,#7DH
DEL3:NOP
NOP
DJNZ R2,DEL3
DJNZ R1,DEL2
DJNZ R0,DEL1
RET
END
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