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 /* Scheduler include files. */
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55 #include "FreeRTOS.h"
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56 #include "portable.h"
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58 /* Demo application include files. */
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59 #include "partest.h"
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61 /*-----------------------------------------------------------
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62 * Simple parallel port IO routines.
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64 * This is for the demo application which uses port 2 for LED outputs.
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65 *-----------------------------------------------------------*/
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67 /* Value for the LED to be off. */
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68 #define partstLED_OUTPUTS ( ( unsigned char ) 0xff )
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70 /* P2.0 is not used as an output so there are only 7 LEDs on port 2. */
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71 #define partstMAX_LEDs ( 7 )
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72 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0 )
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74 /* Maps the LED outputs used by the standard demo application files to
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75 convenient outputs for the EDK2329. Mainly this insures that the LED
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76 used by the Check task is one of the on board LEDs so the demo can be
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77 executed on an EDK without any modification. */
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78 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED );
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80 /*-----------------------------------------------------------*/
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82 void vParTestInitialise( void )
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84 /* LED's are connected to port 2. P2.1 and P2.2 are built onto the EDK.
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85 P2.3 to P2.7 are soldered onto the expansion port. */
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86 P2DDR = partstLED_OUTPUTS;
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87 P2DR = partstALL_OUTPUTS_OFF;
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89 /*-----------------------------------------------------------*/
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92 * Described at the top of the file.
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94 static inline unsigned char prvMapLED( unsigned portBASE_TYPE uxLED )
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98 case 0 : return ( unsigned char ) 2;
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99 case 1 : return ( unsigned char ) 3;
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100 case 2 : return ( unsigned char ) 4;
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101 case 3 : return ( unsigned char ) 5;
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102 case 4 : return ( unsigned char ) 6;
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103 case 5 : return ( unsigned char ) 0;
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104 case 6 : return ( unsigned char ) 1;
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105 default : return 0;
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108 /*-----------------------------------------------------------*/
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111 * Turn an LED on or off.
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113 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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115 unsigned char ucLED;
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117 if( uxLED < partstMAX_LEDs )
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119 ucLED = prvMapLED( uxLED );
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121 /* Set a bit in the required LED position. LED 0 is bit 1. */
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122 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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126 portENTER_CRITICAL();
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128 portEXIT_CRITICAL();
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132 portENTER_CRITICAL();
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134 portEXIT_CRITICAL();
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138 /*-----------------------------------------------------------*/
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140 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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142 unsigned char ucLED;
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144 if( uxLED < partstMAX_LEDs )
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146 ucLED = prvMapLED( uxLED );
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148 /* Set a bit in the required LED position. LED 0 is bit 1. */
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149 ucLED = ( unsigned char ) 1 << ( ucLED + 1 );
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151 portENTER_CRITICAL();
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162 portEXIT_CRITICAL();
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