/* | |
FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd. | |
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 (version 2) as published by the | |
Free Software Foundation and modified by the FreeRTOS exception. | |
**NOTE** The exception to the GPL is included to allow you to distribute a | |
combined work that includes FreeRTOS without being obliged to provide the | |
source code for proprietary components outside of the FreeRTOS kernel. | |
Alternative commercial license and support terms are also available upon | |
request. See the licensing section of http://www.FreeRTOS.org for full | |
license details. | |
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. | |
*************************************************************************** | |
* * | |
* Looking for a quick start? Then check out the FreeRTOS eBook! * | |
* See http://www.FreeRTOS.org/Documentation for details * | |
* * | |
*************************************************************************** | |
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 include files. */ | |
#include "FreeRTOS.h" | |
#include "portable.h" | |
/* Demo application include files. */ | |
#include "partest.h" | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines. | |
* | |
* This is for the demo application which uses port 2 for LED outputs. | |
*-----------------------------------------------------------*/ | |
/* Value for the LED to be off. */ | |
#define partstLED_OUTPUTS ( ( unsigned portCHAR ) 0xff ) | |
/* P2.0 is not used as an output so there are only 7 LEDs on port 2. */ | |
#define partstMAX_LEDs ( 7 ) | |
#define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0 ) | |
/* Maps the LED outputs used by the standard demo application files to | |
convenient outputs for the EDK2329. Mainly this insures that the LED | |
used by the Check task is one of the on board LEDs so the demo can be | |
executed on an EDK without any modification. */ | |
static inline unsigned portCHAR prvMapLED( unsigned portBASE_TYPE uxLED ); | |
/*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
/* LED's are connected to port 2. P2.1 and P2.2 are built onto the EDK. | |
P2.3 to P2.7 are soldered onto the expansion port. */ | |
P2DDR = partstLED_OUTPUTS; | |
P2DR = partstALL_OUTPUTS_OFF; | |
} | |
/*-----------------------------------------------------------*/ | |
/* | |
* Described at the top of the file. | |
*/ | |
static inline unsigned portCHAR prvMapLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
switch( uxLED ) | |
{ | |
case 0 : return ( unsigned portCHAR ) 2; | |
case 1 : return ( unsigned portCHAR ) 3; | |
case 2 : return ( unsigned portCHAR ) 4; | |
case 3 : return ( unsigned portCHAR ) 5; | |
case 4 : return ( unsigned portCHAR ) 6; | |
case 5 : return ( unsigned portCHAR ) 0; | |
case 6 : return ( unsigned portCHAR ) 1; | |
default : return 0; | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
/* | |
* Turn an LED on or off. | |
*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
unsigned portCHAR ucLED; | |
if( uxLED < partstMAX_LEDs ) | |
{ | |
ucLED = prvMapLED( uxLED ); | |
/* Set a bit in the required LED position. LED 0 is bit 1. */ | |
ucLED = ( unsigned portCHAR ) 1 << ( ucLED + 1 ); | |
if( xValue ) | |
{ | |
portENTER_CRITICAL(); | |
P2DR |= ucLED; | |
portEXIT_CRITICAL(); | |
} | |
else | |
{ | |
portENTER_CRITICAL(); | |
P2DR &= ~ucLED; | |
portEXIT_CRITICAL(); | |
} | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned portCHAR ucLED; | |
if( uxLED < partstMAX_LEDs ) | |
{ | |
ucLED = prvMapLED( uxLED ); | |
/* Set a bit in the required LED position. LED 0 is bit 1. */ | |
ucLED = ( unsigned portCHAR ) 1 << ( ucLED + 1 ); | |
portENTER_CRITICAL(); | |
{ | |
if( P2DR & ucLED ) | |
{ | |
P2DR &= ~ucLED; | |
} | |
else | |
{ | |
P2DR |= ucLED; | |
} | |
} | |
portEXIT_CRITICAL(); | |
} | |
} | |