FreeRTOS-Kernel/Demo/ARM7_LPC2129_IAR/ParTest/ParTest.c

/*
	FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

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	***************************************************************************

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*/

/*-----------------------------------------------------------
 * Simple parallel port IO routines for the LED's.
 *-----------------------------------------------------------*/


/* Scheduler includes. */
#include "FreeRTOS.h"

/* Demo application includes. */
#include "partest.h"

/* Board specific defines. */
#define partstFIRST_IO		( ( unsigned portLONG ) 0x10000 )
#define partstNUM_LEDS		( 8 )

/*-----------------------------------------------------------*/

void vParTestInitialise( void )
{	
	/* The ports are setup within prvInitialiseHardware(), called by main(). */
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
unsigned portLONG ulLED = partstFIRST_IO;

	if( uxLED < partstNUM_LEDS )
	{
		/* Rotate to the wanted bit of port 1.  Only P16 to P23 have an LED
		attached. */
		ulLED <<= ( unsigned portLONG ) uxLED;

		/* Set or clear the output. */
		if( xValue )
		{
			IO1SET = ulLED;
		}
		else
		{
			IO1CLR = ulLED;			
		}
	}	
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
unsigned portLONG ulLED = partstFIRST_IO, ulCurrentState;

	if( uxLED < partstNUM_LEDS )
	{
		/* Rotate to the wanted bit of port 1.  Only P10 to P13 have an LED
		attached. */
		ulLED <<= ( unsigned portLONG ) uxLED;

		/* If this bit is already set, clear it, and visa versa. */
		ulCurrentState = IO1PIN;
		if( ulCurrentState & ulLED )
		{
			IO1CLR = ulLED;
		}
		else
		{
			IO1SET = ulLED;			
		}
	}	
}