时间不对，定时查询20次后再改变不然50ms加一次，不是一秒
ORG 00H
MOV A,#0FFH
MOV P0,A
MOV P1,A
MOV P2,A
MOV P3,A
START:
MOV TMOD,#01H
MOV TH0,#3CH
MOV TL0,#0B0H
SETB ET0
SETB EA
SETB TR0
MOV R0,#0
MOV R1,#10
MOV R2,#20
SUI:
MOV A,R0
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P0,A
LOOP:
JNB TF0,LOOP
CLR TF0
MOV TH0,#3CH
MOV TL0,#0B0H
DJNZ R2,LOOP
MOV R2,#20
INC R0
DJNZ R1, SUI
MOV R0, #0
MOV R1, #10
LJMP SUI
TAB:
DB 090H,080H,0F8H,082H,092H,099H,0B0H,0A4H,0F9H,0C0H
END
我也不是很记得汇编了
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