关于单片机的程序的请教

只看该作者 · 2011-5-28 16:28

本帖最后由 qq124469142 于 2011-5-28 16:32 编辑

#include <AT89X52.H>
unsigned char code dispbit[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,

0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x40};
unsigned char dispbuf[8]={0,0,0,0,0,0,10,10};
unsigned char temp[8];
unsigned char dispcount;
unsigned char T0count;
unsigned char timecount;
bit flag;
unsigned long x;
void main(void)
{

unsigned char i;

TMOD=0x15;

TH0=0;

TL0=0;

TH1=(65536-4000)/256;

TL1=(65536-4000)%256;

TR1=1;

TR0=1;

ET0=1;

ET1=1;

EA=1;

while(1)

{

if(flag==1)

{

flag=0;

x=T0count*65536+TH0*256+TL0;

for(i=0;i<8;i++)

{

temp=0;

}

i=0;

while(x/10)

{

temp=x%10;

x=x/10;

i++;

}

temp=x;

for(i=0;i<6;i++)

{

dispbuf=temp;

}

timecount=0;

T0count=0;

TH0=0;

TL0=0;

TR0=1;

}

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

T0count++;
}
void t1(void) interrupt 3 using 0
{

TH1=(65536-4000)/256;

TL1=(65536-4000)%256;

timecount++;

if(timecount==250)

{

TR0=0;

timecount=0;

flag=1;

}

P0=dispcode[dispbuf[dispcount]];

P2=dispbit[dispcount];

dispcount++;

if(dispcount==8)

{

dispcount=0;

}
}
想利用AT89S51单片机的T0、T1的定时计数器功能，来完成对输入的信号进行频率计数，计数的频率结果通过8位动态数码管显示出来，请各位高人，给点意见！！！谢谢！！