#include<regx51.h>
#define uchar unsigned char
#define uint unsigned int
uchar y;
bit ce_anjian ( )
{
bit key=0;
P1=0xf3;
if(P1!=0xf3)
key=1;
else
key=0;
return(key);
}
void doudong_ys( )
{
uchar i,j;
for(i=0;i<30;i++)
for(j=0;j<248;j++);
}
void ce_jianzhi ( )
{
{
uchar i,j,p;
P1=0xf3;
i=P1&0x03;
if(i==0x02) j=1;
if(i==0x01) j=3;
P1=0xfc;
i=P1&0x0c;
if(i==0x08) p=0;
if(i==0x04) p=1;
y=j+p;
}
doudong_ys();
do
{
while(ce_anjian()==1);
doudong_ys();
}while(ce_anjian()==1);
}
void main()
{
while(1)
{
if(ce_anjian()==1)
{
ce_jianzhi();
switch(y)
{
case 1:P2=0xfe;break;
case 2:P2=0xfd;break;
case 3:P2=0xfb;break;
case 4:P2=0xf7;break;
default:break;
}
}
}
}
这个是2X2的怎么改为3X3的?
|