gg1.c

基于AVR,和51两种单片机的实验例子,非常有用

#include<AT89x51.H>
/*unsigned char code dispcode[]={
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,
0xf8,0x80,0x90};*/
unsigned char b,c,e,temp;
unsigned int a;
/*unsigned char i,j,k,n,m,f,h,g;
void delay1ms(void)
{
for(i=0;i<2;i++)
for(j=0;j<248;j++);
}*/
main()
{
temp=0xfe;
TMOD=0x02;
TH0=0x06;
TL0=0x06;
EA=1;
ET0=1;
TR0=1;
/*while(1)
{
if(n==125)
{
n=0;
m++;
if(m==10)
{
m=0;
f++;
if(f==10)
{
f=0;
h++;
if(h==10)
{
h=0;
g++;
if(g==10)
g=0;
}
}
}
}
P0=0xbf;
P2=dispcode[m];
delay1ms();
P0=0xef;
P2=dispcode[f];
delay1ms();
P0=0xdf;
P2=dispcode[h];
delay1ms();
P0=0xf7;
P2=dispcode[g];
delay1ms();
n++;
}*/
while(1);
}void timerr(void) interrupt 1
{
a++;
if(a==800)
{
a=0;
for(b=1;b<7;b++)
{
c=temp>>b;
e=temp<<(8-b);
P1=c|e;
}
}
}