www.pudn.com > FreeRTOSV4.0.0.zip > ParTest.c, change:2006-03-21,size:3222b


/* 
	FreeRTOS V4.0.0 - Copyright (C) 2003-2006 Richard Barry. 
 
	This file is part of the FreeRTOS distribution. 
 
	FreeRTOS is free software; you can redistribute it and/or modify 
	it under the terms of the GNU General Public License as published by 
	the Free Software Foundation; either version 2 of the License, or 
	(at your option) any later version. 
 
	FreeRTOS is distributed in the hope that it will be useful, 
	but WITHOUT ANY WARRANTY; without even the implied warranty of 
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
	GNU General Public License for more details. 
 
	You should have received a copy of the GNU General Public License 
	along with FreeRTOS; if not, write to the Free Software 
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 
	A special exception to the GPL can be applied should you wish to distribute 
	a combined work that includes FreeRTOS, without being obliged to provide 
	the source code for any proprietary components.  See the licensing section  
	of http://www.FreeRTOS.org for full details of how and when the exception 
	can be applied. 
 
	*************************************************************************** 
	See http://www.FreeRTOS.org for documentation, latest information, license  
	and contact details.  Please ensure to read the configuration and relevant  
	port sections of the online documentation. 
	*************************************************************************** 
*/ 
 
/* 
	Changes from V2.5.2 
		 
	+ All LED's are turned off to start. 
*/ 
 
 
#include "FreeRTOS.h" 
#include "partest.h" 
 
#define partstFIRST_IO			( ( unsigned portLONG ) 0x400 ) 
#define partstNUM_LEDS			( 4 ) 
#define partstALL_OUTPUTS_OFF	( ( unsigned portLONG ) 0xffffffff ) 
 
/*----------------------------------------------------------- 
 * Simple parallel port IO routines. 
 *-----------------------------------------------------------*/ 
 
void vParTestInitialise( void ) 
{ 
	/* This is performed from main() as the io bits are shared with other setup 
	functions. */ 
 
	/* Turn all outputs off. */ 
	GPIO_IOSET = partstALL_OUTPUTS_OFF; 
} 
/*-----------------------------------------------------------*/ 
 
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 0.  Only P10 to P13 have an LED 
		attached. */ 
		ulLED <<= ( unsigned portLONG ) uxLED; 
 
		/* Set of clear the output. */ 
		if( xValue ) 
		{ 
			GPIO_IOCLR = ulLED; 
		} 
		else 
		{ 
			GPIO_IOSET = ulLED;			 
		} 
	}	 
} 
/*-----------------------------------------------------------*/ 
 
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) 
{ 
unsigned portLONG ulLED = partstFIRST_IO, ulCurrentState; 
 
	if( uxLED < partstNUM_LEDS ) 
	{ 
		/* Rotate to the wanted bit of port 0.  Only P10 to P13 have an LED 
		attached. */ 
		ulLED <<= ( unsigned portLONG ) uxLED; 
 
		/* If this bit is already set, clear it, and visa versa. */ 
		ulCurrentState = GPIO0_IOPIN; 
		if( ulCurrentState & ulLED ) 
		{ 
			GPIO_IOCLR = ulLED; 
		} 
		else 
		{ 
			GPIO_IOSET = ulLED;			 
		} 
	}	 
}