设单片机晶振频率为12MHZ，试编写一延时1s的子程序？

MOVTH0,#3CH

MOVTL0,#0B0H

MOVR0,#20

SETBEA

SETBTR0

SETBET0

SJMP$

DJNZR0,ZDFH

MOVR0,#20

SJMP$

ZDFH:MOVTH0,#3CH

MOVTL0,#0B0H

RETI

匿名回答于2024-05-17 09:40:49