/* | |
FreeRTOS.org V5.2.0 - Copyright (C) 2003-2009 Richard Barry. | |
This file is part of the FreeRTOS.org distribution. | |
FreeRTOS.org is free software; you can redistribute it and/or modify it | |
under the terms of the GNU General Public License (version 2) as published | |
by the Free Software Foundation and modified by the FreeRTOS exception. | |
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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.org; 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 is included to allow you to distribute a | |
combined work that includes FreeRTOS.org without being obliged to provide | |
the source code for any proprietary components. See the licensing section | |
of http://www.FreeRTOS.org for full details. | |
*************************************************************************** | |
* * | |
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation * | |
* * | |
* This is a concise, step by step, 'hands on' guide that describes both * | |
* general multitasking concepts and FreeRTOS specifics. It presents and * | |
* explains numerous examples that are written using the FreeRTOS API. * | |
* Full source code for all the examples is provided in an accompanying * | |
* .zip file. * | |
* * | |
*************************************************************************** | |
1 tab == 4 spaces! | |
Please ensure to read the configuration and relevant port sections of the | |
online documentation. | |
http://www.FreeRTOS.org - Documentation, latest information, license and | |
contact details. | |
http://www.SafeRTOS.com - A version that is certified for use in safety | |
critical systems. | |
http://www.OpenRTOS.com - Commercial support, development, porting, | |
licensing and training services. | |
*/ | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines. | |
*-----------------------------------------------------------*/ | |
/* FreeRTOS includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
/* Demo includes. */ | |
#include "partest.h" | |
#define partstNUM_LEDs 4 | |
#define LED0_MASK ( ( unsigned short ) 0x08 ) | |
#define LED1_MASK ( ( unsigned short ) 0x10 ) | |
#define LED2_MASK ( ( unsigned short ) 0x40 ) | |
#define LED3_MASK ( ( unsigned short ) 0x80 ) | |
static const unsigned short xLEDs[ partstNUM_LEDs ] = { LED0_MASK, LED1_MASK, LED2_MASK, LED3_MASK }; | |
void vParTestInitialise( void ) | |
{ | |
/* Set GPIO to output. */ | |
PM3 &= ~( LED0_MASK | LED1_MASK | LED2_MASK | LED3_MASK ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
unsigned portBASE_TYPE uxLEDMask; | |
if( uxLED < partstNUM_LEDs ) | |
{ | |
uxLEDMask = xLEDs[ uxLED ]; | |
taskENTER_CRITICAL(); | |
{ | |
if( xValue ) | |
{ | |
P3 |= uxLEDMask; | |
} | |
else | |
{ | |
P3 &= ~uxLEDMask; | |
} | |
} | |
taskEXIT_CRITICAL(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned portBASE_TYPE uxLEDMask; | |
if( uxLED < partstNUM_LEDs ) | |
{ | |
uxLEDMask = xLEDs[ uxLED ]; | |
taskENTER_CRITICAL(); | |
{ | |
if( P3 & uxLEDMask ) | |
{ | |
P3 &= ~uxLEDMask; | |
} | |
else | |
{ | |
P3 |= uxLEDMask; | |
} | |
} | |
taskEXIT_CRITICAL(); | |
} | |
} | |