org 0000h
ljmp reset
org 000bh
ljmp int_time
ORG 0030H
RESET: mov sp,#07h
mov r0,#7fh
clear0: mov @r0,a
djnz r0,clear0
MOV TMOD,#01H ;设定定时器0
MOV TL0,#0cH ;设定定时初值65536-500
MOV TH0,#0FeH
setb ea
setb ET0
setb tr0
ajmp $
int_time:
mov tl0,#0ch
mov th0,#0feh
cpl p1.1
reti
end
温馨提示:答案为网友推荐,仅供参考