1,采用定时器⼀计数器T0对外部脉冲计数,每计数1000个脉冲后,使用T1定时2ms后,T0又？

void Timer0_init() {
TMOD |=0x1d; //方式1，16位定时/计数器，T0计数，T1定时

TH0 = (65536-1000)/256; //计数器装初值1000,

TL0 = (65536-1000)%256;
TH1 = (65536-1000)/256; //定时器装初值1000, 即 2000uS 中断一次
TL1 = (65536-1000)%256;
EA=1; ET0=1; ET1=1;

TR0=1; //先启动T0
TR1=0;
}

void timer0() interrupt 1 { //T0中断

TR0=0; //停止T0
TH1 = (65536-1000)/256; //定时器装初值1000, 即 2000uS 中断一次
TL1 = (65536-1000)%256;
TR1=1; //启动T1
}
void timer1() interrupt 3 { //T1中断

TR1=0; //停止T1
TH0 = (65536-1000)/256; //计数器装初值1000,
TL0 = (65536-1000)%256;
TR0=1; //启动T0
}
void main(){

Timer0_init();
while(1) { }
}