单片机。编程。实现流水灯循环不断。8个发光二极管。晶振为6mhz

Question

急救

Answer 1

用的是P1口org 000h
start:
mov r0,#07h
mov r1,#07h
mov a,#01h
mov p1,a
acall time
loop1:
RL a
mov p1,a
acall time
djnz r0,loop1
loop2:
rr a
mov p1,a
acall time
djnz r1,loop2
ljmp start
time:MOV R5,#20
LP3:MOV R6,#100
LP2:MOV R7,#100
LP1:DJNZ R7,LP1
DJNZ R6,LP2
DJNz R5,LP3
RET
END