LED effect with micro 89c51

Pretty simple LED effect with a simple code and schematic


#include
#define first P1
#define second P2
//sbit first P1^0
//sbit second P2^0
void wait()
{
int i,j;
for(i=0;i<=1000;i++)
for(j=0;j<=10;j++);
}
main()
{
unsigned int i; /* Delay var */
unsigned char j,m; /* LED var */
while (1)
{
for(m=0x01;m!=0xff;m=m(m<<1))
{
for(i=1;i<=7;i++)
{ /* Loop forever */
for (j=m; j!= 0x00; j<<=i) { /* Blink LED 0, 1, 2, 3, 4, 5, 6 */
P1 = j; /* Output to LED Port */
wait (); /* call wait function */
}
P1=0;
for (j=m; j!=0x00; j<<=i) { /* Blink LED 6, 5, 4, 3, 2, 1 */
P2 = j; /* Output to LED Port */
wait ();
} /* call wait function */
P2=0;
}
}
}
}


schematic :


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