#include <STC89C5xRC.H>
#include <INTRINS.H>
void Delay500ms() //@12.000MHz
{
unsigned char i, j, k;
_nop_();
i = 4;
j = 205;
k = 187;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void main()
{
while(1)
{
P2 = 0XFE;
Delay500ms();
P2 = 0XFF;
Delay500ms();
}
}
