定时器的应用
经过调试,间隔时间几近为1s
#include<reg52.h>
sbit A2=P2^2;
sbit A1=P2^1;
sbit A0=P2^0;
sbit ENLED=P1^1;
unsigned char code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
void main()
{
unsigned int m=0;
unsigned char n=0;
A2=1;
A1=0;
A0=1;
ENLED=0;
TMOD=0x01; //T0ÎaÄ£ê½1
TH0=0xb8; //¸øT0¸33õê¼Öμ0xb800(T0Îa16¸ö×Ö½ú)
TL0=0x00;
TR0=1; //T0Æô¶ˉ
while(1)
{
if(TF0==1) //ÅD¶ÏT0êÇ·ñòç3ö
{
TF0=0; //T0òç3öoó£¬ÇåáãÖD¶Ï±êÖ¾
TH0=0xb8;
TL0=0x00;
m++;
if(m>=150) //ÅD¶ÏT0òç3öêÇ·ñ′ïμ½150′Î
{
m=0;
P0=table[n];
n++;
if(n>=10)
{
n=0;
}
}
}
}
}
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