2 FreeRTOS V7.0.2 - Copyright (C) 2011 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 http://www.FreeRTOS.org - Documentation, latest information, license and
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47 http://www.SafeRTOS.com - A version that is certified for use in safety
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50 http://www.OpenRTOS.com - Commercial support, development, porting,
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51 licensing and training services.
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57 + Use scheduler suspends in place of critical sections.
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61 + Replaced the inb() and outb() functions with direct memory
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62 access. This allows the port to be built with the 20050414 build of
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66 #include "FreeRTOS.h"
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68 #include "partest.h"
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70 /*-----------------------------------------------------------
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71 * Simple parallel port IO routines.
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72 *-----------------------------------------------------------*/
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74 #define partstALL_BITS_OUTPUT ( ( unsigned char ) 0xff )
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75 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0xff )
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76 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
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78 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF; /*lint !e956 File scope parameters okay here. */
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80 /*-----------------------------------------------------------*/
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82 void vParTestInitialise( void )
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84 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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86 /* Set port B direction to outputs. Start with all output off. */
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87 DDRB = partstALL_BITS_OUTPUT;
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88 PORTB = ucCurrentOutputValue;
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90 /*-----------------------------------------------------------*/
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92 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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94 unsigned char ucBit = ( unsigned char ) 1;
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96 if( uxLED <= partstMAX_OUTPUT_LED )
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102 if( xValue == pdTRUE )
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104 ucBit ^= ( unsigned char ) 0xff;
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105 ucCurrentOutputValue &= ucBit;
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109 ucCurrentOutputValue |= ucBit;
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112 PORTB = ucCurrentOutputValue;
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117 /*-----------------------------------------------------------*/
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119 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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121 unsigned char ucBit;
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123 if( uxLED <= partstMAX_OUTPUT_LED )
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125 ucBit = ( ( unsigned char ) 1 ) << uxLED;
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129 if( ucCurrentOutputValue & ucBit )
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131 ucCurrentOutputValue &= ~ucBit;
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135 ucCurrentOutputValue |= ucBit;
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138 PORTB = ucCurrentOutputValue;
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