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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54 /*-----------------------------------------------------------
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55 * Simple parallel port IO routines.
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56 *-----------------------------------------------------------*/
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58 /* FreeRTOS includes. */
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59 #include "FreeRTOS.h"
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62 /* Demo includes. */
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63 #include "partest.h"
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65 #define partstTOTAL_NUM_LEDs 16
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66 #define partstNUM_LEDs_PER_DISPLAY 8
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68 volatile unsigned char *pucDisplayOutput[ 2 ] = { ( unsigned portCHAR * ) 3, ( unsigned portCHAR * ) 5 };
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70 void vParTestInitialise( void )
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72 /* In this case all the initialisation is performed in prvSetupHardware()
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75 /*-----------------------------------------------------------*/
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77 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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79 unsigned portBASE_TYPE uxLEDMask = 0x01;
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81 if( uxLED < partstNUM_LEDs_PER_DISPLAY )
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83 uxLEDMask <<= uxLED;
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85 taskENTER_CRITICAL();
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89 *pucDisplayOutput[ 0 ] &= ~uxLEDMask;
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93 *pucDisplayOutput[ 0 ] |= uxLEDMask;
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96 taskEXIT_CRITICAL();
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98 else if( uxLED < partstTOTAL_NUM_LEDs )
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100 uxLED -= partstNUM_LEDs_PER_DISPLAY;
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102 uxLEDMask <<= uxLED;
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104 taskENTER_CRITICAL();
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108 *pucDisplayOutput[ 1 ] &= ~uxLEDMask;
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112 *pucDisplayOutput[ 1 ] |= uxLEDMask;
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115 taskEXIT_CRITICAL();
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118 /*-----------------------------------------------------------*/
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120 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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122 unsigned portBASE_TYPE uxLEDMask = 0x01;
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124 if( uxLED < partstNUM_LEDs_PER_DISPLAY )
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126 uxLEDMask <<= uxLED;
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128 taskENTER_CRITICAL();
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130 if( *pucDisplayOutput[ 0 ] & uxLEDMask )
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132 *pucDisplayOutput[ 0 ] &= ~uxLEDMask;
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136 *pucDisplayOutput[ 0 ] |= uxLEDMask;
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139 taskEXIT_CRITICAL();
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141 else if( uxLED < partstTOTAL_NUM_LEDs )
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143 uxLED -= partstNUM_LEDs_PER_DISPLAY;
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145 uxLEDMask <<= uxLED;
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147 taskENTER_CRITICAL();
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149 if( *pucDisplayOutput[ 1 ] & uxLEDMask )
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151 *pucDisplayOutput[ 1 ] &= ~uxLEDMask;
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155 *pucDisplayOutput[ 1 ] |= uxLEDMask;
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158 taskEXIT_CRITICAL();
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