/* | |
FreeRTOS V6.0.4 - Copyright (C) 2010 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* If you are: * | |
* * | |
* + New to FreeRTOS, * | |
* + Wanting to learn FreeRTOS or multitasking in general quickly * | |
* + Looking for basic training, * | |
* + Wanting to improve your FreeRTOS skills and productivity * | |
* * | |
* then take a look at the FreeRTOS eBook * | |
* * | |
* "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
* A pdf reference manual is also available. Both are usually delivered * | |
* to your inbox within 20 minutes to two hours when purchased between 8am * | |
* and 8pm GMT (although please allow up to 24 hours in case of * | |
* exceptional circumstances). Thank you for your support! * | |
* * | |
*************************************************************************** | |
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. | |
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 and the FreeRTOS license exception along with FreeRTOS; if not it | |
can be viewed here: http://www.freertos.org/a00114.html and also obtained | |
by writing to Richard Barry, contact details for whom are available on the | |
FreeRTOS WEB site. | |
1 tab == 4 spaces! | |
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(); | |
} | |
} | |