main.c

来自「Freescale Code Warrior中C的编程」· C语言 代码 · 共 48 行

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

#pragma DATA_SEG MY_ZEROPAGE
  char near DataZeroP;

#pragma DATA_SEG DEFAULT
  char far DataAnyP;

void MCU_init(void); /* Device initialization function declaration */

void main(void) {

  /* Uncomment this function call after using Device Initialization
     to use the generated code */
  /* MCU_init(); */
  volatile char * far FarPointer;
  volatile char * near NearPointer;
  EnableInterrupts; /* enable interrupts */
  
  /* Minimal Startup, No global copydown */
  DataZeroP = 0x55;
  DataAnyP = 0xAA;
  
  /* include your code here */

  FarPointer = &DataAnyP;
  NearPointer = &DataAnyP;
  FarPointer = &DataZeroP;
  NearPointer = &DataZeroP;

  for(;;) {
      
    DataAnyP++;
    DataZeroP++;
    FarPointer++;
    NearPointer++;
  
    if(NearPointer == (volatile unsigned char *)0xFF)
    {
      asm("NOP");
    }
  
    __RESET_WATCHDOG(); /* feeds the dog */
  } /* loop forever */
  /* please make sure that you never leave this function */
}