main.c

MC9s12d系列单片机中断程序实例

#include <hidef.h>      /* common defines and macros */
#include <mc9s12dg128.h>     /* derivative information */
#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"




void main(void) {
  /* put your own code here */
  DDRB   = 0XFF;
  PERP   |= 0X80;
  PIEP   |=0X80;
  EnableInterrupts;

  for(;;) {} /* wait forever */
  /* please make sure that you never leave this function */
}


void interrupt 56 PP7_ISR() 
{
  PIFP |= 0X80;
  PORTB +=1;
}