2 FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.
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4 ***************************************************************************
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8 * + New to FreeRTOS, *
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9 * + Wanting to learn FreeRTOS or multitasking in general quickly *
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10 * + Looking for basic training, *
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11 * + Wanting to improve your FreeRTOS skills and productivity *
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13 * then take a look at the FreeRTOS eBook *
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15 * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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16 * http://www.FreeRTOS.org/Documentation *
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18 * A pdf reference manual is also available. Both are usually delivered *
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19 * to your inbox within 20 minutes to two hours when purchased between 8am *
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20 * and 8pm GMT (although please allow up to 24 hours in case of *
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21 * exceptional circumstances). Thank you for your support! *
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23 ***************************************************************************
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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 exception to the GPL is included to allow you to distribute
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31 a combined work that includes FreeRTOS without being obliged to provide the
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32 source code for proprietary components outside of the FreeRTOS kernel.
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33 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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34 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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35 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 + Types used updated.
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58 + Add vParTestToggleLED();
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63 + Use scheduler suspends in place of critical sections.
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66 #include "FreeRTOS.h"
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67 #include "partest.h"
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70 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0x00 )
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71 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
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73 /*lint -e956 File scope parameters okay here. */
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74 static unsigned short usPortAddress = partstDEFAULT_PORT_ADDRESS;
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75 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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79 /*-----------------------------------------------------------
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80 * Simple parallel port IO routines
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81 *-----------------------------------------------------------*/
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83 void vParTestInitialise( void )
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85 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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87 portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF );
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89 /*-----------------------------------------------------------*/
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91 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
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93 unsigned char ucBit = ( unsigned char ) 1;
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95 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 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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116 /*-----------------------------------------------------------*/
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118 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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120 unsigned char ucBit;
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122 if( uxLED <= partstMAX_OUTPUT_LED )
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124 ucBit = ( ( unsigned char ) 1 ) << uxLED;
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128 if( ucCurrentOutputValue & ucBit )
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130 ucCurrentOutputValue &= ~ucBit;
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134 ucCurrentOutputValue |= ucBit;
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137 portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
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