第1个回答 2010-08-07
#include <AT89X51.H>
#define uint unsigned int
#define uchar unsigned char
uchar num;
uchar code table[]={
0x28,0x7e,0xa2,0x62,0x74,
0x61,0x21,0x7a,0x20,0x60,
0x30,0x25,0xA9,0x26,0xa1,0xB1};
void delay(unsigned int z);
uint k,tt;
void main()
{
TMOD=0X01;//定时器0设置方式1
TH0=(65536-50000)/256;
TL0=(65535-50000)%256;
EA=1;//开总中断
ET0=1;//开定时器0中断
TR0=1;//定时器0开始工作
k=0;
tt=0;
P2=0x00;
while(1)
{
if(tt==20)
{
tt=0;
P0=table[k];
k++;
if(k==16)
k=0;
P1_1=1;
}
}
}
void exter0() interrupt 1
{
P1_1=0;
TH0=(65536-50000)/256;
TL0=(65535-50000)%256;
tt++;
}
我自己写的 定时器基本程序
还有 中断基本程序
#include <AT89X51.H>
#define uint unsigned int
#define uchar unsigned char
uchar num;
uchar code table[]={
0x28,0x7e,0xa2,0x62,0x74,
0x61,0x21,0x7a,0x20,0x60,
0x30,0x25,0xA9,0x26,0xa1,0xB1};
void delay(unsigned int z);
uint k;
void main()
{
P2=0x00;
while(1)
{
for (k=0;k<16;k++)
{
P0=table[k];
delay(200);
}
}
}
void delay(unsigned int z) //延时函数,z的取值为这个函数的延时ms数,如delay(200);大约延时200ms.
{ //delay(500);大约延时500ms.
unsigned int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
可以了吧