2 FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.
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5 ***************************************************************************
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7 * FreeRTOS tutorial books are available in pdf and paperback. *
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8 * Complete, revised, and edited pdf reference manuals are also *
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11 * Purchasing FreeRTOS documentation will not only help you, by *
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12 * ensuring you get running as quickly as possible and with an *
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13 * in-depth knowledge of how to use FreeRTOS, it will also help *
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14 * the FreeRTOS project to continue with its mission of providing *
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15 * professional grade, cross platform, de facto standard solutions *
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16 * for microcontrollers - completely free of charge! *
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18 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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20 * Thank you for using FreeRTOS, and thank you for your support! *
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22 ***************************************************************************
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25 This file is part of the FreeRTOS distribution.
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27 FreeRTOS is free software; you can redistribute it and/or modify it under
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28 the terms of the GNU General Public License (version 2) as published by the
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29 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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30 >>>NOTE<<< The modification to the GPL is included to allow you to
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31 distribute a combined work that includes FreeRTOS without being obliged to
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32 provide the source code for proprietary components outside of the FreeRTOS
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33 kernel. FreeRTOS is distributed in the hope that it will be useful, but
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34 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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35 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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36 more details. You should have received a copy of the GNU General Public
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37 License and the FreeRTOS license exception along with FreeRTOS; if not it
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38 can be viewed here: http://www.freertos.org/a00114.html and also obtained
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39 by writing to Richard Barry, contact details for whom are available on the
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44 ***************************************************************************
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46 * Having a problem? Start by reading the FAQ "My application does *
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47 * not run, what could be wrong? *
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49 * http://www.FreeRTOS.org/FAQHelp.html *
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51 ***************************************************************************
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54 http://www.FreeRTOS.org - Documentation, training, latest information,
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55 license and contact details.
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57 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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58 including FreeRTOS+Trace - an indispensable productivity tool.
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60 Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
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61 the code with commercial support, indemnification, and middleware, under
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62 the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
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63 provide a safety engineered and independently SIL3 certified version under
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64 the SafeRTOS brand: http://www.SafeRTOS.com.
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67 /* Scheduler include files. */
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68 #include "FreeRTOS.h"
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69 #include "portable.h"
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71 /* Demo application include files. */
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72 #include "partest.h"
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74 /*-----------------------------------------------------------
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75 * Simple parallel port IO routines.
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77 * This is for the demo application which uses port 2 for LED outputs.
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78 *-----------------------------------------------------------*/
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80 /* Value for the LED to be off. */
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81 #define partstLED_OUTPUTS ( ( unsigned char ) 0xff )
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83 /* P2.0 is not used as an output so there are only 7 LEDs on port 2. */
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84 #define partstMAX_LEDs ( 7 )
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85 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0 )
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87 /* Maps the LED outputs used by the standard demo application files to
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88 convenient outputs for the EDK2329. Mainly this insures that the LED
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89 used by the Check task is one of the on board LEDs so the demo can be
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90 executed on an EDK without any modification. */
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91 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED );
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93 /*-----------------------------------------------------------*/
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95 void vParTestInitialise( void )
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97 /* LED's are connected to port 2. P2.1 and P2.2 are built onto the EDK.
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98 P2.3 to P2.7 are soldered onto the expansion port. */
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99 P2DDR = partstLED_OUTPUTS;
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100 P2DR = partstALL_OUTPUTS_OFF;
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102 /*-----------------------------------------------------------*/
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105 * Described at the top of the file.
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107 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED )
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111 case 0 : return ( unsigned char ) 2;
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112 case 1 : return ( unsigned char ) 3;
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113 case 2 : return ( unsigned char ) 4;
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114 case 3 : return ( unsigned char ) 5;
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115 case 4 : return ( unsigned char ) 6;
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116 case 5 : return ( unsigned char ) 0;
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117 case 6 : return ( unsigned char ) 1;
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118 default : return 0;
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121 /*-----------------------------------------------------------*/
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124 * Turn an LED on or off.
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126 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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128 unsigned char ucLED;
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130 if( uxLED < partstMAX_LEDs )
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132 ucLED = prvMapLED( uxLED );
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134 /* Set a bit in the required LED position. LED 0 is bit 1. */
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135 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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139 portENTER_CRITICAL();
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141 portEXIT_CRITICAL();
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145 portENTER_CRITICAL();
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147 portEXIT_CRITICAL();
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151 /*-----------------------------------------------------------*/
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153 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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155 unsigned char ucLED;
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157 if( uxLED < partstMAX_LEDs )
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159 ucLED = prvMapLED( uxLED );
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161 /* Set a bit in the required LED position. LED 0 is bit 1. */
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162 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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164 portENTER_CRITICAL();
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175 portEXIT_CRITICAL();
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