fiotest.c

arm lpc2300 GPIO设计 实现lpc2300通用IO口的数据传输

/*****************************************************************************
 *   fiotest.c:  GPIO test main C entry file for NXP LPC23xx/24xx Family 
 *    Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.07.14  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC23xx.h"                        /* LPC2xxx definitions */
#include "type.h"
#include "irq.h"
#include "target.h"
#include "timer.h"
#include "fio.h"

extern DWORD timer0_counter;

/*****************************************************************************
**   Main Function  main()
******************************************************************************/
int main (void)
{
  DWORD counter;
		    		
  /********* The main Function is an endless loop ***********/
  init_timer( 0, TIME_INTERVAL );

  /* GPIOInit() need to be carefully called if you want to run some
  other peripherals, it will set the PINSEL to default value and change
  the direction of IOs. */

  /* Initialize port for LED display, the LEDs on Keil MCB2300 is Port 2.0~2.7 */
  GPIOInit( 2, FAST_PORT, DIR_OUT );

  /* Initialize timer for GPIO toggling timing */
  enable_timer( 0 );

  counter = 0;
  FIO2SET = 1 << counter;
  while ( 1 )
  {
	if ( timer0_counter >= (0x20 * counter) )
	{
	  FIO2SET = 1 << counter;
	  counter++;
	  if ( counter > 8 )
	  {
		counter = 0;	
		timer0_counter = 0;
		FIO2CLR = 0x000000FF;
	  }
	}
  }
  return 0;
}

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