#include <reg51.h>
sbit NBL=P1^0;
sbit NBY=P1^1;
sbit NBH=P1^2;
sbit DXL=P1^3;
sbit DXY=P1^4;
sbit DXH=P1^5;
unsigned int a;
void djs()
{
a=60000;
while(a--);
}
void main()
{
P1=0;
while(1)
{
P1=0X21; //00100001 //NBL=1;//1.0
//DXH=1;//1.5
djs();
djs();
djs();
DXH=0;
NBL=1;
DXY=1;
a=40000;
while(a--);
DXY=0;
DXL=1;
NBL=0;
NBH=1;
djs();
djs();
djs();
DXL=1;
NBH=0;
NBY=1;
a=40000;
while(a--);
DXL=0;
NBY=0;
}
}
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