flash.c

来自「keilc pic的版本 才搞到的 希望对大家有帮助」· C语言 代码 · 共 32 行

/* FLASH.C - LED Flasher for the Phytec KC164CI Board */

#include <reg164.h>

void wait (void)  {                   /* wait function */
  ;                                   /* only to delay for LED flashes */
}

void main (void)  {
  unsigned int i;                     /* Delay var */
  unsigned int j;                     /* LED var */


  DP1L = 0xFF;

  while (1) {                         /* Loop forever */
    for (j=0x0001; j < 0x100; j<<=1){ /* Blink LED */
      P1L = ~j & 0xFF;                /* Output to LED Port */
      for (i = 0; i < 10000; i++)  {  /* Delay for 10000 Counts */
        wait ();                      /* call wait function */
      }
    }

    for (j=0x0080; j != 0; j>>=1){    /* Blink LED */
      P1L = ~j & 0x00FF;              /* Output to LED Port */
      for (i = 0; i < 10000; i++)  {  /* Delay for 10000 Counts */
        wait ();                      /* call wait function */
      }
    }
  }
}