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proteus 单片机仿真基于int0中断的计数器

把这个改成在int1上中断请问要怎么改具体代码要怎么写?

2025-03-15 21:25:49

推荐回答（2个）

回答1：

;本程序晶振为：12MHZ，报警输出频率为：100HZ
ORG 0000H
LJMP MAIN
ORG 0003H ;INT0中断入口
LJMP XC_INT0
ORG 000BH ;T0中断入口
LJMP BJ_T0
ORG 0030H
MAIN: MOV TMOD,#01H
MOV TH0,#0ECH ;定时初值，定时值为5ms
MOV TL0,#78H
SETB EA
SETB EX0
SETB ET0
CLR IT0
SJMP $
;===int0外部中断子程序===
XC_INT0:PUSH ACC
PUSH PSW
SETB TR0
POP PSW
POP ACC
RETI
;===报警频率产生T0中断===
BJ_T0: CPL p2.3
MOV TH0,#0ECH
MOV TL0,#78H
RETI

回答2：

你现在在家吗

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