slavr934.c

单片机开发资料光盘-双龙-686M.zip

#include <io8515.h>
#define BIT(x)	(1 << (x))
void delay(void)
{
 unsigned char i,j;
  for (i=1;i;i++)
   for(j=1;j;j++);
}            
void led_pb(void)
{
 unsigned char i;
   DDRB=0xff;
    for (i=0;i<8;i++)
      {
       PORTB=~BIT(i);
       delay( );
      }
}
void main (void) 
{
  while (1)
      led_pb( );
}