pmtest.c

NXP产品LPC23XX的开发板的源文件

/*****************************************************************************
 *   pmtest.c:  main C entry file for NXP LPC23xx/24xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.07.20  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC23xx.h"                        /* LPC23xx/24xx definitions */
#include "type.h"
#include "irq.h"
#include "target.h"
#include "timer.h"
#include "pwrman.h"


extern volatile DWORD timer_counter;

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

    /* The power management routine is tested on the Keil MCB23xx board */
	/* It has be to tested when the code is running in the flash. In the
	debugging mode, the debugger link may be broken when the MCU is in the
	power down mode. The link can't be reestablished when EINT0 button is
	pressed. */
    FIO2DIR = 0x000000FF;		/* P2.0..7 defined as Outputs */
    FIO2CLR = 0x000000FF;		/* turn off all the LEDs */
    
    init_timer( TIME_INTERVAL );
    enable_timer( 0 );
	    
    if ( PM_Init( ) != TRUE )
    {
		while( 1 );			/* fatal error */
    }

	/* After setting up the wake up source, go to power down mode, 
	when the push button on EXTINT0 is pressed, the system will wake
	up, Reset_MainClock() will be the first routine to be executed, 
	the PLL will be reconfigured, finally, LEDs are blinking happily. */
	PCON = 0x2;	 			
  
	ConfigurePLL();

	counter = 0;
	timer_counter = 0;
	while ( 1 )
    {
		if ( timer_counter >= (0x20 * counter) )
		{
			FIO2SET = 1 << counter;
			counter++;
			if ( counter > 8 )
			{
		    	counter = 0;	
		    	timer_counter = 0;
		    	FIO2CLR = 0x000000FF;
			}
	    }
    }
    return 0;
}

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