2 FreeRTOS.org V4.2.0 - Copyright (C) 2003-2007 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 See http://www.FreeRTOS.org for documentation, latest information, license
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28 and contact details. Please ensure to read the configuration and relevant
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29 port sections of the online documentation.
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30 ***************************************************************************
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36 + Types used updated.
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37 + Add vParTestToggleLED();
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42 + Use scheduler suspends in place of critical sections.
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45 #include "FreeRTOS.h"
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46 #include "partest.h"
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49 #define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0x00 )
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50 #define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
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52 /*lint -e956 File scope parameters okay here. */
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53 static unsigned portSHORT usPortAddress = partstDEFAULT_PORT_ADDRESS;
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54 static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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58 /*-----------------------------------------------------------
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59 * Simple parallel port IO routines
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60 *-----------------------------------------------------------*/
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62 void vParTestInitialise( void )
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64 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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66 portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF );
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68 /*-----------------------------------------------------------*/
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70 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
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72 unsigned portCHAR ucBit = ( unsigned portCHAR ) 1;
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74 if( uxLED <= partstMAX_OUTPUT_LED )
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81 if( xValue == pdTRUE )
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83 ucBit ^= ( unsigned portCHAR ) 0xff;
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84 ucCurrentOutputValue &= ucBit;
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88 ucCurrentOutputValue |= ucBit;
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91 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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95 /*-----------------------------------------------------------*/
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97 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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99 unsigned portCHAR ucBit;
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101 if( uxLED <= partstMAX_OUTPUT_LED )
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103 ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED;
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107 if( ucCurrentOutputValue & ucBit )
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109 ucCurrentOutputValue &= ~ucBit;
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113 ucCurrentOutputValue |= ucBit;
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116 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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