/* | |
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. | |
FreeRTOS.org 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.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. | |
*/ | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
/* Demo app includes. */ | |
#include "partest.h" | |
#define ptOUTPUT 0 | |
#define ptALL_OFF 0 | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines. | |
*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
/* The explorer 16 board has LED's on port A. All bits are set as output | |
so PORTA is read-modified-written directly. */ | |
TRISA = ptOUTPUT; | |
PORTA = ptALL_OFF; | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
unsigned portBASE_TYPE uxLEDBit; | |
/* Which port A bit is being modified? */ | |
uxLEDBit = 1 << uxLED; | |
if( xValue ) | |
{ | |
/* Turn the LED on. */ | |
portENTER_CRITICAL(); | |
{ | |
PORTA |= uxLEDBit; | |
} | |
portEXIT_CRITICAL(); | |
} | |
else | |
{ | |
/* Turn the LED off. */ | |
portENTER_CRITICAL(); | |
{ | |
PORTA &= ~uxLEDBit; | |
} | |
portEXIT_CRITICAL(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned portBASE_TYPE uxLEDBit; | |
uxLEDBit = 1 << uxLED; | |
portENTER_CRITICAL(); | |
{ | |
/* If the LED is already on - turn it off. If the LED is already | |
off, turn it on. */ | |
if( PORTA & uxLEDBit ) | |
{ | |
PORTA &= ~uxLEDBit; | |
} | |
else | |
{ | |
PORTA |= uxLEDBit; | |
} | |
} | |
portEXIT_CRITICAL(); | |
} | |