#include <reg52.h>
sfr CKCON = 0x8F,
void delay(unsined long);
void main()
{
unsigned int j;
CKCON =0x01;
P2 = 0x00;
while(1)
{
}
P2 = 0x01;
delay (50000);
P2 = 0x01;
delay (50000);
P2 = 0x02;
delay (50000);
P2 = 0x04;
delay (50000);
P2 = 0x08;
delay (50000);
P2 = 0x10;
delay (50000);
P2 = 0x20;
delay (50000);
P2 = 0x40;
delay (50000);
P2 = 0x80;
delay (50000);
}
}
void delay(unsigned long i)
{
while(i >0){i--;}
}
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