mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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138 lines
4.9 KiB
C
138 lines
4.9 KiB
C
/*
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FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.
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***************************************************************************
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* *
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* FreeRTOS tutorial books are available in pdf and paperback. *
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* Complete, revised, and edited pdf reference manuals are also *
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* available. *
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* *
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* Purchasing FreeRTOS documentation will not only help you, by *
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* ensuring you get running as quickly as possible and with an *
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* in-depth knowledge of how to use FreeRTOS, it will also help *
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* the FreeRTOS project to continue with its mission of providing *
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* professional grade, cross platform, de facto standard solutions *
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* for microcontrollers - completely free of charge! *
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* *
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* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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* *
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* Thank you for using FreeRTOS, and thank you for your support! *
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* *
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***************************************************************************
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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>>>NOTE<<< The modification to the GPL is included to allow you to
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distribute a combined work that includes FreeRTOS without being obliged to
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provide the source code for proprietary components outside of the FreeRTOS
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kernel. FreeRTOS is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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1 tab == 4 spaces!
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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/*-----------------------------------------------------------
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* Simple GPIO (parallel port) IO routines.
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*-----------------------------------------------------------*/
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/* Kernel includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* Standard demo include. */
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#include "partest.h"
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/* Freescale includes. */
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#include "common.h"
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/* Only the LEDs on one of the two seven segment displays are used. */
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#define partstMAX_LEDS 4
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/* The bits used to control the LEDs on the TWR-K60N512. */
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const unsigned long ulLEDs[ partstMAX_LEDS ] = { ( 1UL << 10UL ), ( 1UL << 29UL ), ( 1UL << 28UL ), ( 1UL << 11UL ) };
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/*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* Set PTA10, PTA11, PTA28, and PTA29 (connected to LED's) for GPIO
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functionality. */
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PORTA_PCR10 = ( 0 | PORT_PCR_MUX( 1 ) );
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PORTA_PCR11 = ( 0 | PORT_PCR_MUX( 1 ) );
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PORTA_PCR28 = ( 0 | PORT_PCR_MUX( 1 ) );
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PORTA_PCR29 = ( 0 | PORT_PCR_MUX( 1 ) );
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/* Change PTA10, PTA11, PTA28, PTA29 to outputs. */
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GPIOA_PDDR=GPIO_PDDR_PDD( ulLEDs[ 0 ] | ulLEDs[ 1 ] | ulLEDs[ 2 ] | ulLEDs[ 3 ] );
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/* Start with LEDs off. */
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GPIOA_PTOR = ~0U;
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( unsigned long ulLED, signed portBASE_TYPE xValue )
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{
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if( ulLED < partstMAX_LEDS )
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{
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if( xValue == pdTRUE )
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{
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GPIOA_PCOR = ulLEDs[ ulLED ];
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}
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else
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{
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GPIOA_PSOR = ulLEDs[ ulLED ];
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}
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}
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned long ulLED )
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{
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if( ulLED < partstMAX_LEDS )
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{
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GPIOA_PTOR = ulLEDs[ ulLED ];
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}
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}
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/*-----------------------------------------------------------*/
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long lParTestGetLEDState( unsigned long ulLED )
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{
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long lReturn = pdFALSE;
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if( ulLED < partstMAX_LEDS )
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{
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lReturn = GPIOA_PDOR & ulLEDs[ ulLED ];
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if( lReturn == 0 )
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{
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lReturn = pdTRUE;
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}
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else
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{
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lReturn = pdFALSE;
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}
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}
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return lReturn;
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}
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