2 FreeRTOS V7.4.2 - 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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78 + Types used updated.
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79 + Add vParTestToggleLED();
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84 + Use scheduler suspends in place of critical sections.
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87 #include "FreeRTOS.h"
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88 #include "partest.h"
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91 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0x00 )
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92 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
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94 /*lint -e956 File scope parameters okay here. */
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95 static unsigned short usPortAddress = partstDEFAULT_PORT_ADDRESS;
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96 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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100 /*-----------------------------------------------------------
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101 * Simple parallel port IO routines
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102 *-----------------------------------------------------------*/
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104 void vParTestInitialise( void )
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106 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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108 portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF );
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110 /*-----------------------------------------------------------*/
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112 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
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114 unsigned char ucBit = ( unsigned char ) 1;
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116 if( uxLED <= partstMAX_OUTPUT_LED )
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123 if( xValue == pdTRUE )
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125 ucBit ^= ( unsigned char ) 0xff;
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126 ucCurrentOutputValue &= ucBit;
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130 ucCurrentOutputValue |= ucBit;
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133 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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137 /*-----------------------------------------------------------*/
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139 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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141 unsigned char ucBit;
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143 if( uxLED <= partstMAX_OUTPUT_LED )
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145 ucBit = ( ( unsigned char ) 1 ) << uxLED;
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149 if( ucCurrentOutputValue & ucBit )
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151 ucCurrentOutputValue &= ~ucBit;
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155 ucCurrentOutputValue |= ucBit;
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158 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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