中断计数器.txt

单片机写的程序都含有Protues仿真结果

 #include<reg51.h>
unsigned char code SEG7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned int a;
void main()
{TMOD=0X05;
EA=1;
EX0=1;
IT0=1;
TR0=1;

while(1);
}
void t0() interrupt 1	using 0
{

   a++;
   	P1=SEG7[a/10];
	P2=SEG7[a%10];
	if(a==99)
	{a=0;}

}