idle_test.c

IARSOURCECODE是基于LPC2478嵌入式软件IAR EWARM V4.42的应用实例代码

/*****************************************************************************
 *   wdttest.c:  main C entry file for NXP LPC23xx/24xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.07.19  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC2468.h"                        /* LPC23xx/24xx definitions */
#include "type.h"
#include "target.h"
#include "irq.h"
#include "timer.h"

#include "fio.h"
#include "extint.h"

extern volatile DWORD timer0_counter,eint0_counter;
volatile DWORD feed_counter = 0;

/*****************************************************************************
**   Main Function  main()
******************************************************************************/
int main (void)
{ 	    		
  int i=0;

  TargetResetInit();
  GPIOInit(3,1,1);
  LedsInit();
  EINTInit();
  enable_timer(0);

  PCONP = 0x0002;                   // 除了Timer0之外，所有外设都关闭

  while(1)
  {
    PCON = 0x01;                   // 进入Idle状态，CPU停止

    //ConfigurePLL();             // 由于PowerDown状态会关闭PLL，从PowerDown状态唤醒时需要重新配置PLL

    LedOn(i);                     // 当接收到EINT0按键中断时唤醒CPU，继续运行点亮LED
    delayMs(0,1000);
    LedOff(i);
    delayMs(0,1000);

    i++;
  }

  return 0;
}

/*********************************************************************************
**                            End Of File
*********************************************************************************/