#1楼主：瞧瞧俺的变速流水灯
文章发表于：2008-06-12 05:25
ORG 0000H
AJMP 0100H
ORG 0100H
START:
ACALL DELAY
CPL P0.0
ACALL DELAY
CPL P0.1
ACALL DELAY
CPL P0.2
ACALL DELAY
CPL P0.3
ACALL DELAY
CPL P0.4
ACALL DELAY
CPL P0.5
ACALL DELAY
CPL P0.6
ACALL DELAY
CPL P0.7
ACALL DELAY
AJMP START
DELAY:
MOV R6,A
D1:
MOV R5,#01H
DJNZ R5,$ ;
DJNZ R6,D1
DJNZ R7,DELAY
ADD A,#01H
RET
END
刚上电时，流动速度很快，然后逐渐变慢 。