2 FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 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 * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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30 * and even write all or part of your application on your behalf. *
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31 * See http://www.OpenRTOS.com for details of the services we provide to *
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32 * expedite your project. *
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34 ***************************************************************************
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35 ***************************************************************************
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37 Please ensure to read the configuration and relevant port sections of the
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38 online documentation.
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40 http://www.FreeRTOS.org - Documentation, latest information, license and
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43 http://www.SafeRTOS.com - A version that is certified for use in safety
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46 http://www.OpenRTOS.com - Commercial support, development, porting,
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47 licensing and training services.
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50 #include "FreeRTOS.h"
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56 #define diceRUN_MIN 600000L
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57 #define diceRUN_MAX 1200000L
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59 #define diceSTATE_STOPPED 0
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60 #define diceSTATE_STARTUP 1
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61 #define diceSTATE_RUNNING 2
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63 #define diceEND_DELAY ( 5000 / portTICK_RATE_MS )
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65 #define dice7SEG_Value( x ) *( pucDisplayOutput[ x ] )
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67 #define prvButtonHit( ucIndex, xTicksToWait ) xSemaphoreTake( xSemaphores[ ucIndex ], xTicksToWait )
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69 static const char cDisplaySegments[ 2 ][ 11 ] =
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71 { 0x48, 0xeb, 0x8c, 0x89, 0x2b, 0x19, 0x18, 0xcb, 0x08, 0x09, 0xf7 },
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72 { 0xa0, 0xf3, 0xc4, 0xc1, 0x93, 0x89, 0x88, 0xe3, 0x80, 0x81, 0x7f }
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75 static xSemaphoreHandle xSemaphores[ 2 ] = { 0 };
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77 extern volatile unsigned char *pucDisplayOutput[ 2 ];
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79 /*-----------------------------------------------------------*/
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81 void vDiceTask( void *pvParameters )
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83 char cDiceState = diceSTATE_STOPPED;
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84 unsigned char ucDiceValue, ucIndex;
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85 unsigned long ulDiceRunTime, ulDiceDelay, ulDiceDelayReload;
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86 extern void vToggleFlashTaskSuspendState( void );
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88 ucIndex = ( unsigned char ) pvParameters;
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89 vSemaphoreCreateBinary( xSemaphores[ ucIndex ] );
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90 srand( ( unsigned char ) diceRUN_MIN );
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94 switch( cDiceState )
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96 case diceSTATE_STOPPED:
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98 prvButtonHit( ucIndex, portMAX_DELAY );
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99 ulDiceRunTime = diceRUN_MIN;
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100 cDiceState = diceSTATE_RUNNING;
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102 ulDiceDelayReload = 1;
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103 cDiceState = diceSTATE_RUNNING;
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106 vToggleFlashTaskSuspendState();
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111 case diceSTATE_RUNNING:
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118 ucDiceValue = rand() % 6 + 1;
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119 dice7SEG_Value( ucIndex ) = ( dice7SEG_Value( ucIndex ) | 0xf7 ) & cDisplaySegments[ ucIndex ][ ucDiceValue ];
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120 ulDiceDelayReload = ulDiceDelayReload + 100;
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121 ulDiceDelay = ulDiceDelayReload;
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124 if( ulDiceRunTime == 0 )
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126 dice7SEG_Value( ucIndex ) = ( dice7SEG_Value( ucIndex ) | 0xf7 ) & cDisplaySegments[ ucIndex ][ rand() % 6 + 1 ];
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127 cDiceState = diceSTATE_STOPPED;
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131 vTaskDelay( diceEND_DELAY );
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132 *pucDisplayOutput[ ucIndex ] = 0xff;
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133 vToggleFlashTaskSuspendState();
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141 /*-----------------------------------------------------------*/
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143 __interrupt void vExternalInt8Handler( void )
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145 short sHigherPriorityTaskWoken = pdFALSE;
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147 /* Reset the interrupt. */
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150 xSemaphoreGiveFromISR( xSemaphores[ 0 ], &sHigherPriorityTaskWoken );
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152 if( sHigherPriorityTaskWoken != pdFALSE )
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154 portYIELD_FROM_ISR();
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157 /*-----------------------------------------------------------*/
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159 __interrupt void vExternalInt9Handler( void )
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161 short sHigherPriorityTaskWoken = pdFALSE;
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163 /* Reset the interrupt. */
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166 xSemaphoreGiveFromISR( xSemaphores[ 1 ], &sHigherPriorityTaskWoken );
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168 if( sHigherPriorityTaskWoken != pdFALSE )
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170 portYIELD_FROM_ISR();
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