2 FreeRTOS.org V5.1.2 - 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
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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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27 ***************************************************************************
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29 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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31 * This is a concise, step by step, 'hands on' guide that describes both *
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32 * general multitasking concepts and FreeRTOS specifics. It presents and *
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33 * explains numerous examples that are written using the FreeRTOS API. *
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34 * Full source code for all the examples is provided in an accompanying *
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37 ***************************************************************************
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38 ***************************************************************************
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40 Please ensure to read the configuration and relevant port sections of the
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41 online documentation.
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43 http://www.FreeRTOS.org - Documentation, latest information, license and
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46 http://www.SafeRTOS.com - A version that is certified for use in safety
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49 http://www.OpenRTOS.com - Commercial support, development, porting,
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50 licensing and training services.
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56 + Types used updated.
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57 + Add vParTestToggleLED();
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62 + Use scheduler suspends in place of critical sections.
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65 #include "FreeRTOS.h"
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66 #include "partest.h"
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69 #define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0x00 )
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70 #define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
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72 /*lint -e956 File scope parameters okay here. */
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73 static unsigned portSHORT usPortAddress = partstDEFAULT_PORT_ADDRESS;
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74 static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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78 /*-----------------------------------------------------------
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79 * Simple parallel port IO routines
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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 portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF );
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88 /*-----------------------------------------------------------*/
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90 void vParTestSetLED( unsigned portBASE_TYPE uxLED, 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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101 if( xValue == pdTRUE )
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103 ucBit ^= ( unsigned portCHAR ) 0xff;
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104 ucCurrentOutputValue &= ucBit;
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108 ucCurrentOutputValue |= ucBit;
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111 portOUTPUT_BYTE( usPortAddress, ( unsigned ) 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 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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