2 FreeRTOS.org V5.2.0 - Copyright (C) 2003-2009 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License (version 2) as published
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8 by the Free Software Foundation and modified by the FreeRTOS exception.
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10 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 You should have received a copy of the GNU General Public License along
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16 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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17 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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19 A special exception to the GPL is included to allow you to distribute a
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20 combined work that includes FreeRTOS.org without being obliged to provide
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21 the source code for any proprietary components. See the licensing section
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22 of http://www.FreeRTOS.org for full details.
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25 ***************************************************************************
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27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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29 * This is a concise, step by step, 'hands on' guide that describes both *
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30 * general multitasking concepts and FreeRTOS specifics. It presents and *
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31 * explains numerous examples that are written using the FreeRTOS API. *
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32 * Full source code for all the examples is provided in an accompanying *
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35 ***************************************************************************
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39 Please ensure to read the configuration and relevant port sections of the
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40 online documentation.
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42 http://www.FreeRTOS.org - Documentation, latest information, license and
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45 http://www.SafeRTOS.com - A version that is certified for use in safety
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48 http://www.OpenRTOS.com - Commercial support, development, porting,
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49 licensing and training services.
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55 + Use scheduler suspends in place of critical sections.
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59 + Replaced the inb() and outb() functions with direct memory
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60 access. This allows the port to be built with the 20050414 build of
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64 #include "FreeRTOS.h"
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66 #include "partest.h"
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68 /*-----------------------------------------------------------
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69 * Simple parallel port IO routines.
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70 *-----------------------------------------------------------*/
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72 #define partstALL_BITS_OUTPUT ( ( unsigned portCHAR ) 0xff )
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73 #define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0xff )
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74 #define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
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76 static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF; /*lint !e956 File scope parameters okay here. */
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78 /*-----------------------------------------------------------*/
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80 void vParTestInitialise( void )
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82 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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84 /* Set port B direction to outputs. Start with all output off. */
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85 DDRB = partstALL_BITS_OUTPUT;
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86 PORTB = ucCurrentOutputValue;
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88 /*-----------------------------------------------------------*/
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90 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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92 unsigned portCHAR ucBit = ( unsigned portCHAR ) 1;
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94 if( uxLED <= partstMAX_OUTPUT_LED )
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100 if( xValue == pdTRUE )
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102 ucBit ^= ( unsigned portCHAR ) 0xff;
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103 ucCurrentOutputValue &= ucBit;
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107 ucCurrentOutputValue |= ucBit;
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110 PORTB = ucCurrentOutputValue;
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115 /*-----------------------------------------------------------*/
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117 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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119 unsigned portCHAR ucBit;
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121 if( uxLED <= partstMAX_OUTPUT_LED )
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123 ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED;
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127 if( ucCurrentOutputValue & ucBit )
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129 ucCurrentOutputValue &= ~ucBit;
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133 ucCurrentOutputValue |= ucBit;
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136 PORTB = ucCurrentOutputValue;
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