tmrtest.c

来自「NXP产品LPC23XX的开发板的源文件」· C语言 代码 · 共 54 行

/*****************************************************************************
 *   tmrtest.c:  main C entry file for NXP LPC23xx/24xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.09.01  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC23xx.H"                        /* LPC23xx/24xx definitions */
#include "type.h"
#include "target.h"
#include "irq.h"
#include "timer.h"

extern DWORD timer_counter;

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

	/************ The main Function is an endless loop ************/
    /* The timer routine is tested on the Keil MCB214x board */
    FIO2DIR = 0x000000FF;		/* P1.16..23 defined as Outputs */
    FIO2CLR = 0x000000FF;		/* turn off all the LEDs */
    
    init_timer( TIME_INTERVAL );
    enable_timer( 0 );

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

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