main.c

mc9s08aw16单片机LED实例程序

#include <hidef.h> /* for EnableInterrupts macro */
#include "derivative.h" /* include peripheral declarations */

  unsigned int i;
  

void main(void) {

  EnableInterrupts; /* enable interrupts */
  /* include your code here */

PTADD_PTADD0=1;

PTADD_PTADD1=1;

PTBDD_PTBDD0=1;
          
PTBDD_PTBDD1=1;

PTBDD_PTBDD2=1;

PTBDD_PTBDD3=1;

PTAD_PTAD0=1;

PTAD_PTAD1=0;

PTBD_PTBD0=1;

PTBD_PTBD1=0;

PTBD_PTBD2=1;

PTBD_PTBD3=0;


  for(;;) {
  
  for(i=0;i<0xafff;i++)
  
    __RESET_WATCHDOG(); /* feeds the dog */
    
    
   
PTAD_PTAD0=~PTAD_PTAD0;

PTAD_PTAD1=~PTAD_PTAD1;

PTBD_PTBD0=~PTBD_PTBD0;

PTBD_PTBD1=~PTBD_PTBD1;

PTBD_PTBD2=~PTBD_PTBD2;

PTBD_PTBD3=~PTBD_PTBD3;
 
    
    
  } /* loop forever */
  /* please make sure that you never leave main */
}