main.c.bak

来自「Freescal MC9S08GT60的一些实例源码」· BAK 代码 · 共 23 行

#include <hidef.h> /* for EnableInterrupts macro */
#include <MC9S08GB60.h> /* include peripheral declarations */

void main(void) {
  DisableInterrupts;	//Disable Interrupts
  
  PTADD = 0x00; //Set Port A as input port
  PTBDD = 0xFF; //Set Port B as output port
  IRQSC = 0x16; //IRQ Interrupt Enable and event on falling edges sensitive
  PTBD = PTAD;  //Send Port A value to Port B
  
  EnableInterrupts; /* enable interrupts */
  
  for(;;) {
    __RESET_WATCHDOG(); /* feeds the dog */
  } /* loop forever */
}

interrupt IRQ() {
  IRQSC_IRQACK = 1; //IRQ interrupt acknowledge
  
  PTBD = PTAD;  //Send Port A value to Port B
}