2 FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 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
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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28 Please ensure to read the configuration and relevant port sections of the
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29 online documentation.
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31 +++ http://www.FreeRTOS.org +++
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32 Documentation, latest information, license and contact details.
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34 +++ http://www.SafeRTOS.com +++
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35 A version that is certified for use in safety critical systems.
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37 +++ http://www.OpenRTOS.com +++
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38 Commercial support, development, porting, licensing and training services.
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40 ***************************************************************************
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46 + Use scheduler suspends in place of critical sections.
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50 + Replaced the inb() and outb() functions with direct memory
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51 access. This allows the port to be built with the 20050414 build of
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55 #include "FreeRTOS.h"
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57 #include "partest.h"
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59 /*-----------------------------------------------------------
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60 * Simple parallel port IO routines.
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61 *-----------------------------------------------------------*/
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63 #define partstALL_BITS_OUTPUT ( ( unsigned portCHAR ) 0xff )
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64 #define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0xff )
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65 #define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
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67 static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF; /*lint !e956 File scope parameters okay here. */
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69 /*-----------------------------------------------------------*/
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71 void vParTestInitialise( void )
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73 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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75 /* Set port B direction to outputs. Start with all output off. */
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76 DDRB = partstALL_BITS_OUTPUT;
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77 PORTB = ucCurrentOutputValue;
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79 /*-----------------------------------------------------------*/
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81 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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83 unsigned portCHAR ucBit = ( unsigned portCHAR ) 1;
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85 if( uxLED <= partstMAX_OUTPUT_LED )
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92 if( xValue == pdTRUE )
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94 ucBit ^= ( unsigned portCHAR ) 0xff;
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95 ucCurrentOutputValue &= ucBit;
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99 ucCurrentOutputValue |= ucBit;
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102 PORTB = ucCurrentOutputValue;
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106 /*-----------------------------------------------------------*/
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108 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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110 unsigned portCHAR ucBit;
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112 if( uxLED <= partstMAX_OUTPUT_LED )
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114 ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED;
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118 if( ucCurrentOutputValue & ucBit )
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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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