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******************************************************************/
#include <reg51.h>
sbit led=P1^0;
void delay(unsigned int i)
{
unsigned int j;
unsigned char k;
for(j=i;j>0;j--)
for(k=125;k>0;k--);
}
void main()
{
unsigned char m;
for(m=20;m>0;m--)
{
led=~led;
delay(3000); }
while(1);
}
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