2 FreeRTOS V7.0.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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5 ***************************************************************************
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7 * FreeRTOS tutorial books are available in pdf and paperback. *
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8 * Complete, revised, and edited pdf reference manuals are also *
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11 * Purchasing FreeRTOS documentation will not only help you, by *
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12 * ensuring you get running as quickly as possible and with an *
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13 * in-depth knowledge of how to use FreeRTOS, it will also help *
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14 * the FreeRTOS project to continue with its mission of providing *
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15 * professional grade, cross platform, de facto standard solutions *
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16 * for microcontrollers - completely free of charge! *
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18 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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20 * Thank you for using FreeRTOS, and thank you for your support! *
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22 ***************************************************************************
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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 modification to the GPL is included to allow you to
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31 distribute a combined work that includes FreeRTOS without being obliged to
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32 provide the source code for proprietary components outside of the FreeRTOS
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33 kernel. FreeRTOS is distributed in the hope that it will be useful, but
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34 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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35 or 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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55 *******************************************************************************
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56 * -NOTE- The Win32 port is a simulation (or is that emulation?) only! Do not
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57 * expect to get real time behaviour from the Win32 port or this demo
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58 * application. It is provided as a convenient development and demonstration
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59 * test bed only. This was tested using Windows XP on a dual core laptop.
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61 * - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
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62 *******************************************************************************
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64 * main() creates all the demo application tasks, then starts the scheduler.
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65 * The web documentation provides more details of the standard demo application
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66 * tasks, which provide no particular functionality but do provide a good
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67 * example of how to use the FreeRTOS API.
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69 * In addition to the standard demo tasks, the following tasks and tests are
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70 * defined and/or created within this file:
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72 * "Check" task - This only executes every five seconds but has a high priority
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73 * to ensure it gets processor time. Its main function is to check that all the
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74 * standard demo tasks are still operational. While no errors have been
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75 * discovered the check task will print out "OK" and the current simulated tick
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76 * time. If an error is discovered in the execution of a task then the check
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77 * task will print out an appropriate error message.
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82 /* Standard includes. */
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85 /* Kernel includes. */
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86 #include <FreeRTOS.h>
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90 /* Standard demo includes. */
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92 #include "integer.h"
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93 #include "semtest.h"
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95 #include "GenQTest.h"
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97 #include "recmutex.h"
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99 #include "TimerDemo.h"
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100 #include "countsem.h"
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102 /* Priorities at which the tasks are created. */
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103 #define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
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104 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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105 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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106 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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107 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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108 #define mainFLASH_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
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109 #define mainuIP_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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110 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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111 #define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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112 #define mainFLOP_TASK_PRIORITY ( tskIDLE_PRIORITY )
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114 #define mainTIMER_TEST_PERIOD ( 50 )
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116 /* Task function prototypes. */
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117 static void prvCheckTask( void *pvParameters );
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119 /*-----------------------------------------------------------*/
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123 /* Start the check task as described at the top of this file. */
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124 xTaskCreate( prvCheckTask, ( signed char * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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126 /* Create the standard demo tasks. */
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127 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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128 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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129 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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130 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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131 vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
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132 vStartQueuePeekTasks();
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133 vStartMathTasks( mainFLOP_TASK_PRIORITY );
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134 vStartRecursiveMutexTasks();
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135 vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
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136 vStartCountingSemaphoreTasks();
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138 /* Start the scheduler itself. */
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139 vTaskStartScheduler();
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141 /* Should never get here unless there was not enough heap space to create
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142 the idle and other system tasks. */
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145 /*-----------------------------------------------------------*/
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147 static void prvCheckTask( void *pvParameters )
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149 portTickType xNextWakeTime;
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150 const portTickType xCycleFrequency = 1000 / portTICK_RATE_MS;
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151 char *pcStatusMessage = "OK";
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153 /* Just to remove compiler warning. */
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154 ( void ) pvParameters;
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156 /* Initialise xNextWakeTime - this only needs to be done once. */
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157 xNextWakeTime = xTaskGetTickCount();
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161 /* Place this task in the blocked state until it is time to run again. */
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162 vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
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164 /* Check the standard demo tasks are running without error. */
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165 if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
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167 pcStatusMessage = "Error: TimerDemo";
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169 else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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171 pcStatusMessage = "Error: IntMath";
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173 else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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175 pcStatusMessage = "Error: GenQueue";
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177 else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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179 pcStatusMessage = "Error: QueuePeek";
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181 else if( xAreBlockingQueuesStillRunning() != pdTRUE )
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183 pcStatusMessage = "Error: BlockQueue";
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185 else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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187 pcStatusMessage = "Error: SemTest";
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189 else if( xArePollingQueuesStillRunning() != pdTRUE )
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191 pcStatusMessage = "Error: PollQueue";
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193 else if( xAreMathsTaskStillRunning() != pdPASS )
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195 pcStatusMessage = "Error: Flop";
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197 else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
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199 pcStatusMessage = "Error: RecMutex";
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201 else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
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203 pcStatusMessage = "Error: CountSem";
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206 /* This is the only task that uses stdout so its ok to call printf()
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208 printf( "%s - %d\r\n", pcStatusMessage, xTaskGetTickCount() );
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211 /*-----------------------------------------------------------*/
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213 void vApplicationIdleHook( void )
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215 const unsigned long ulMSToSleep = 5;
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217 /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are
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218 tasks waiting to be terminated by the idle task. */
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219 Sleep( ulMSToSleep );
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221 /*-----------------------------------------------------------*/
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223 void vApplicationMallocFailedHook( void )
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225 /* Can be implemented if required, but probably not required in this
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226 environment and running this demo. */
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228 /*-----------------------------------------------------------*/
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230 void vApplicationStackOverflowHook( void )
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232 /* Can be implemented if required, but not required in this
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233 environment and running this demo. */
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235 /*-----------------------------------------------------------*/
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237 void vApplicationTickHook( void )
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239 /* Call the periodic timer test, which tests the timer API functions that
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240 can be called from an ISR. */
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241 vTimerPeriodicISRTests();
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243 /*-----------------------------------------------------------*/
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245 void vAssertCalled( void )
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247 taskDISABLE_INTERRUPTS();
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