2 FreeRTOS V7.4.1 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
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5 http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS tutorial books are available in pdf and paperback. *
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10 * Complete, revised, and edited pdf reference manuals are also *
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13 * Purchasing FreeRTOS documentation will not only help you, by *
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14 * ensuring you get running as quickly as possible and with an *
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15 * in-depth knowledge of how to use FreeRTOS, it will also help *
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16 * the FreeRTOS project to continue with its mission of providing *
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17 * professional grade, cross platform, de facto standard solutions *
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18 * for microcontrollers - completely free of charge! *
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20 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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22 * Thank you for using FreeRTOS, and thank you for your support! *
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24 ***************************************************************************
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27 This file is part of the FreeRTOS distribution.
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29 FreeRTOS is free software; you can redistribute it and/or modify it under
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30 the terms of the GNU General Public License (version 2) as published by the
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31 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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33 >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
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34 distribute a combined work that includes FreeRTOS without being obliged to
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35 provide the source code for proprietary components outside of the FreeRTOS
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38 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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39 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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40 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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41 details. You should have received a copy of the GNU General Public License
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42 and the FreeRTOS license exception along with FreeRTOS; if not it can be
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43 viewed here: http://www.freertos.org/a00114.html and also obtained by
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44 writing to Real Time Engineers Ltd., contact details for whom are available
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45 on the FreeRTOS WEB site.
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49 ***************************************************************************
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51 * Having a problem? Start by reading the FAQ "My application does *
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52 * not run, what could be wrong?" *
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54 * http://www.FreeRTOS.org/FAQHelp.html *
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56 ***************************************************************************
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59 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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60 license and Real Time Engineers Ltd. contact details.
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62 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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63 including FreeRTOS+Trace - an indispensable productivity tool, and our new
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64 fully thread aware and reentrant UDP/IP stack.
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66 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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67 Integrity Systems, who sell the code with commercial support,
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68 indemnification and middleware, under the OpenRTOS brand.
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70 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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71 engineered and independently SIL3 certified version for use in safety and
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72 mission critical applications that require provable dependability.
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75 /* Scheduler include files. */
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76 #include "FreeRTOS.h"
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77 #include "portable.h"
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79 /* Demo application include files. */
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80 #include "partest.h"
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82 /*-----------------------------------------------------------
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83 * Simple parallel port IO routines.
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85 * This is for the demo application which uses port 2 for LED outputs.
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86 *-----------------------------------------------------------*/
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88 /* Value for the LED to be off. */
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89 #define partstLED_OUTPUTS ( ( unsigned char ) 0xff )
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91 /* P2.0 is not used as an output so there are only 7 LEDs on port 2. */
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92 #define partstMAX_LEDs ( 7 )
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93 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0 )
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95 /* Maps the LED outputs used by the standard demo application files to
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96 convenient outputs for the EDK2329. Mainly this insures that the LED
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97 used by the Check task is one of the on board LEDs so the demo can be
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98 executed on an EDK without any modification. */
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99 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED );
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101 /*-----------------------------------------------------------*/
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103 void vParTestInitialise( void )
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105 /* LED's are connected to port 2. P2.1 and P2.2 are built onto the EDK.
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106 P2.3 to P2.7 are soldered onto the expansion port. */
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107 P2DDR = partstLED_OUTPUTS;
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108 P2DR = partstALL_OUTPUTS_OFF;
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110 /*-----------------------------------------------------------*/
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113 * Described at the top of the file.
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115 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED )
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119 case 0 : return ( unsigned char ) 2;
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120 case 1 : return ( unsigned char ) 3;
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121 case 2 : return ( unsigned char ) 4;
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122 case 3 : return ( unsigned char ) 5;
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123 case 4 : return ( unsigned char ) 6;
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124 case 5 : return ( unsigned char ) 0;
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125 case 6 : return ( unsigned char ) 1;
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126 default : return 0;
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129 /*-----------------------------------------------------------*/
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132 * Turn an LED on or off.
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134 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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136 unsigned char ucLED;
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138 if( uxLED < partstMAX_LEDs )
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140 ucLED = prvMapLED( uxLED );
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142 /* Set a bit in the required LED position. LED 0 is bit 1. */
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143 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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147 portENTER_CRITICAL();
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149 portEXIT_CRITICAL();
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153 portENTER_CRITICAL();
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155 portEXIT_CRITICAL();
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159 /*-----------------------------------------------------------*/
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161 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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163 unsigned char ucLED;
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165 if( uxLED < partstMAX_LEDs )
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167 ucLED = prvMapLED( uxLED );
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169 /* Set a bit in the required LED position. LED 0 is bit 1. */
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170 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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172 portENTER_CRITICAL();
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183 portEXIT_CRITICAL();
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