2 FreeRTOS V7.3.0 - Copyright (C) 2012 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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32 >>>NOTE<<< The modification to the GPL is included to allow you to
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33 distribute a combined work that includes FreeRTOS without being obliged to
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34 provide the source code for proprietary components outside of the FreeRTOS
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35 kernel. FreeRTOS is distributed in the hope that it will be useful, but
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36 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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37 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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38 more details. You should have received a copy of the GNU General Public
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39 License and the FreeRTOS license exception along with FreeRTOS; if not it
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40 can be viewed here: http://www.freertos.org/a00114.html and also obtained
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41 by writing to Richard Barry, contact details for whom are available on the
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46 ***************************************************************************
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48 * Having a problem? Start by reading the FAQ "My application does *
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49 * not run, what could be wrong?" *
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51 * http://www.FreeRTOS.org/FAQHelp.html *
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53 ***************************************************************************
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56 http://www.FreeRTOS.org - Documentation, training, latest versions, license
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57 and contact details.
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59 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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60 including FreeRTOS+Trace - an indispensable productivity tool.
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62 Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
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63 the code with commercial support, indemnification, and middleware, under
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64 the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
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65 provide a safety engineered and independently SIL3 certified version under
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66 the SafeRTOS brand: http://www.SafeRTOS.com.
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72 + Use scheduler suspends in place of critical sections.
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76 + Replaced the inb() and outb() functions with direct memory
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77 access. This allows the port to be built with the 20050414 build of
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81 #include "FreeRTOS.h"
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83 #include "partest.h"
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85 /*-----------------------------------------------------------
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86 * Simple parallel port IO routines.
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87 *-----------------------------------------------------------*/
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89 #define partstALL_BITS_OUTPUT ( ( unsigned char ) 0xff )
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90 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0xff )
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91 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
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93 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF; /*lint !e956 File scope parameters okay here. */
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95 /*-----------------------------------------------------------*/
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97 void vParTestInitialise( void )
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99 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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101 /* Set port B direction to outputs. Start with all output off. */
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102 DDRB = partstALL_BITS_OUTPUT;
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103 PORTB = ucCurrentOutputValue;
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105 /*-----------------------------------------------------------*/
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107 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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109 unsigned char ucBit = ( unsigned char ) 1;
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111 if( uxLED <= partstMAX_OUTPUT_LED )
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117 if( xValue == pdTRUE )
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119 ucBit ^= ( unsigned char ) 0xff;
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120 ucCurrentOutputValue &= ucBit;
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124 ucCurrentOutputValue |= ucBit;
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127 PORTB = ucCurrentOutputValue;
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132 /*-----------------------------------------------------------*/
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134 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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136 unsigned char ucBit;
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138 if( uxLED <= partstMAX_OUTPUT_LED )
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140 ucBit = ( ( unsigned char ) 1 ) << uxLED;
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144 if( ucCurrentOutputValue & ucBit )
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146 ucCurrentOutputValue &= ~ucBit;
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150 ucCurrentOutputValue |= ucBit;
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153 PORTB = ucCurrentOutputValue;
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