2 FreeRTOS V8.2.0rc1 - Copyright (C) 2014 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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13 >>! NOTE: The modification to the GPL is included to allow you to !<<
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14 >>! distribute a combined work that includes FreeRTOS without being !<<
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15 >>! obliged to provide the source code for proprietary components !<<
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16 >>! outside of the FreeRTOS kernel. !<<
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18 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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19 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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20 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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21 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * Having a problem? Start by reading the FAQ "My application does *
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28 * not run, what could be wrong?". Have you defined configASSERT()? *
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30 * http://www.FreeRTOS.org/FAQHelp.html *
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32 ***************************************************************************
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34 ***************************************************************************
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36 * FreeRTOS provides completely free yet professionally developed, *
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37 * robust, strictly quality controlled, supported, and cross *
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38 * platform software that is more than just the market leader, it *
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39 * is the industry's de facto standard. *
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41 * Help yourself get started quickly while simultaneously helping *
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42 * to support the FreeRTOS project by purchasing a FreeRTOS *
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43 * tutorial book, reference manual, or both: *
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44 * http://www.FreeRTOS.org/Documentation *
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46 ***************************************************************************
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48 ***************************************************************************
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50 * Investing in training allows your team to be as productive as *
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51 * possible as early as possible, lowering your overall development *
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52 * cost, and enabling you to bring a more robust product to market *
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53 * earlier than would otherwise be possible. Richard Barry is both *
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54 * the architect and key author of FreeRTOS, and so also the world's *
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55 * leading authority on what is the world's most popular real time *
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56 * kernel for deeply embedded MCU designs. Obtaining your training *
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57 * from Richard ensures your team will gain directly from his in-depth *
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58 * product knowledge and years of usage experience. Contact Real Time *
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59 * Engineers Ltd to enquire about the FreeRTOS Masterclass, presented *
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60 * by Richard Barry: http://www.FreeRTOS.org/contact
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62 ***************************************************************************
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64 ***************************************************************************
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66 * You are receiving this top quality software for free. Please play *
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67 * fair and reciprocate by reporting any suspected issues and *
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68 * participating in the community forum: *
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69 * http://www.FreeRTOS.org/support *
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73 ***************************************************************************
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75 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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76 license and Real Time Engineers Ltd. contact details.
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78 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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79 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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80 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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82 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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83 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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85 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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86 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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87 licenses offer ticketed support, indemnification and commercial middleware.
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89 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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90 engineered and independently SIL3 certified version for use in safety and
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91 mission critical applications that require provable dependability.
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98 * Creates all the demo application tasks, then starts the scheduler. The WEB
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99 * documentation provides more details of the standard demo application tasks.
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100 * In addition to the standard demo tasks, the following tasks and tests are
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101 * defined and/or created within this file:
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103 * "Web server" - Very basic demonstration of the lwIP stack. The WEB server
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104 * simply generates a page that shows the current state of all the tasks within
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105 * the system, including the high water mark of each task stack. The high water
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106 * mark is displayed as the amount of stack that has never been used, so the
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107 * closer the value is to zero the closer the task has come to overflowing its
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108 * stack. The IP address and net mask are set within FreeRTOSConfig.h.
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110 * "Check" task - This only executes every five seconds but has a high priority
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111 * to ensure it gets processor time. Its main function is to check that all the
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112 * standard demo tasks are still operational. While no errors have been
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113 * discovered the check task will toggle an LED every 5 seconds - the toggle
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114 * rate increasing to 500ms being a visual indication that at least one task has
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115 * reported unexpected behaviour.
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117 * "Reg test" tasks - These fill the registers with known values, then check
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118 * that each register still contains its expected value. Each task uses
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119 * different values. The tasks run with very low priority so get preempted very
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120 * frequently. A register containing an unexpected value is indicative of an
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121 * error in the context switching mechanism.
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125 /* Standard includes. */
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128 /* Scheduler includes. */
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129 #include "FreeRTOS.h"
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132 #include "semphr.h"
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134 /* Demo app includes. */
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135 #include "BlockQ.h"
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138 #include "partest.h"
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139 #include "semtest.h"
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141 #include "GenQTest.h"
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143 #include "recmutex.h"
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145 /*-----------------------------------------------------------*/
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147 /* The time between cycles of the 'check' functionality - as described at the
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148 top of this file. */
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149 #define mainNO_ERROR_PERIOD ( ( TickType_t ) 5000 / portTICK_PERIOD_MS )
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151 /* The rate at which the LED controlled by the 'check' task will flash should an
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152 error have been detected. */
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153 #define mainERROR_PERIOD ( ( TickType_t ) 500 / portTICK_PERIOD_MS )
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155 /* The LED controlled by the 'check' task. */
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156 #define mainCHECK_LED ( 3 )
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158 /* ComTest constants - there is no free LED for the comtest tasks. */
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159 #define mainCOM_TEST_BAUD_RATE ( ( unsigned long ) 19200 )
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160 #define mainCOM_TEST_LED ( 5 )
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162 /* Task priorities. */
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163 #define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
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164 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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165 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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166 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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167 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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168 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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169 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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170 #define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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171 #define mainWEB_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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174 * Configure the hardware for the demo.
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176 static void prvSetupHardware( void );
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179 * Implements the 'check' task functionality as described at the top of this
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182 static void prvCheckTask( void *pvParameters );
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185 * Implement the 'Reg test' functionality as described at the top of this file.
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187 static void vRegTest1Task( void *pvParameters );
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188 static void vRegTest2Task( void *pvParameters );
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190 /*-----------------------------------------------------------*/
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192 /* Counters used to detect errors within the reg test tasks. */
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193 static volatile unsigned long ulRegTest1Counter = 0x11111111, ulRegTest2Counter = 0x22222222;
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195 /*-----------------------------------------------------------*/
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199 extern void vBasicWEBServer( void *pv );
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201 /* Setup the hardware ready for this demo. */
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202 prvSetupHardware();
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203 ( void )sys_thread_new("HTTPD", vBasicWEBServer, NULL, 320, mainWEB_TASK_PRIORITY );
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205 /* Start the standard demo tasks. */
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206 vStartLEDFlashTasks( tskIDLE_PRIORITY );
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207 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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208 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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209 vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
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210 vStartQueuePeekTasks();
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211 vStartRecursiveMutexTasks();
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212 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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214 /* Start the reg test tasks - defined in this file. */
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215 xTaskCreate( vRegTest1Task, "Reg1", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest1Counter, tskIDLE_PRIORITY, NULL );
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216 xTaskCreate( vRegTest2Task, "Reg2", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest2Counter, tskIDLE_PRIORITY, NULL );
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218 /* Create the check task. */
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219 xTaskCreate( prvCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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221 /* The suicide tasks must be created last as they need to know how many
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222 tasks were running prior to their creation in order to ascertain whether
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223 or not the correct/expected number of tasks are running at any given time. */
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224 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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226 /* Start the scheduler. */
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227 vTaskStartScheduler();
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229 /* Will only get here if there was insufficient memory to create the idle
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235 /*-----------------------------------------------------------*/
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237 static void prvCheckTask( void *pvParameters )
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239 unsigned ulTicksToWait = mainNO_ERROR_PERIOD, ulError = 0, ulLastRegTest1Count = 0, ulLastRegTest2Count = 0;
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240 TickType_t xLastExecutionTime;
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242 ( void ) pvParameters;
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244 /* Initialise the variable used to control our iteration rate prior to
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246 xLastExecutionTime = xTaskGetTickCount();
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250 /* Wait until it is time to run the tests again. */
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251 vTaskDelayUntil( &xLastExecutionTime, ulTicksToWait );
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253 /* Has an error been found in any task? */
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254 if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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259 if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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264 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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269 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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274 if( xArePollingQueuesStillRunning() != pdTRUE )
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279 if( xIsCreateTaskStillRunning() != pdTRUE )
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284 if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
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286 ulError |= 0x200UL;
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289 if( ulLastRegTest1Count == ulRegTest1Counter )
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291 ulError |= 0x1000UL;
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294 if( ulLastRegTest2Count == ulRegTest2Counter )
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296 ulError |= 0x1000UL;
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299 ulLastRegTest1Count = ulRegTest1Counter;
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300 ulLastRegTest2Count = ulRegTest2Counter;
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302 /* If an error has been found then increase our cycle rate, and in so
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303 going increase the rate at which the check task LED toggles. */
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306 ulTicksToWait = mainERROR_PERIOD;
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309 /* Toggle the LED each itteration. */
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310 vParTestToggleLED( mainCHECK_LED );
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313 /*-----------------------------------------------------------*/
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315 void prvSetupHardware( void )
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317 portDISABLE_INTERRUPTS();
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319 /* Setup the port used to toggle LEDs. */
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320 vParTestInitialise();
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322 /*-----------------------------------------------------------*/
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324 void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName )
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326 /* This will get called if a stack overflow is detected during the context
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327 switch. Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack
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328 problems within nested interrupts, but only do this for debug purposes as
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329 it will increase the context switch time. */
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332 ( void ) pcTaskName;
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338 /*-----------------------------------------------------------*/
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340 static void vRegTest1Task( void *pvParameters )
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342 /* Sanity check - did we receive the parameter expected? */
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343 if( pvParameters != &ulRegTest1Counter )
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345 /* Change here so the check task can detect that an error occurred. */
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351 /* Set all the registers to known values, then check that each retains its
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352 expected value - as described at the top of this file. If an error is
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353 found then the loop counter will no longer be incremented allowing the check
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354 task to recognise the error. */
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355 asm volatile ( "reg_test_1_start: \n\t"
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356 " moveq #1, d0 \n\t"
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357 " moveq #2, d1 \n\t"
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358 " moveq #3, d2 \n\t"
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359 " moveq #4, d3 \n\t"
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360 " moveq #5, d4 \n\t"
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361 " moveq #6, d5 \n\t"
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362 " moveq #7, d6 \n\t"
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363 " moveq #8, d7 \n\t"
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364 " move #9, a0 \n\t"
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365 " move #10, a1 \n\t"
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366 " move #11, a2 \n\t"
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367 " move #12, a3 \n\t"
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368 " move #13, a4 \n\t"
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369 " move #14, a5 \n\t"
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370 " move #15, a6 \n\t"
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372 " cmpi.l #1, d0 \n\t"
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373 " bne reg_test_1_error \n\t"
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374 " cmpi.l #2, d1 \n\t"
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375 " bne reg_test_1_error \n\t"
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376 " cmpi.l #3, d2 \n\t"
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377 " bne reg_test_1_error \n\t"
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378 " cmpi.l #4, d3 \n\t"
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379 " bne reg_test_1_error \n\t"
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380 " cmpi.l #5, d4 \n\t"
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381 " bne reg_test_1_error \n\t"
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382 " cmpi.l #6, d5 \n\t"
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383 " bne reg_test_1_error \n\t"
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384 " cmpi.l #7, d6 \n\t"
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385 " bne reg_test_1_error \n\t"
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386 " cmpi.l #8, d7 \n\t"
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387 " bne reg_test_1_error \n\t"
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388 " move a0, d0 \n\t"
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389 " cmpi.l #9, d0 \n\t"
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390 " bne reg_test_1_error \n\t"
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391 " move a1, d0 \n\t"
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392 " cmpi.l #10, d0 \n\t"
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393 " bne reg_test_1_error \n\t"
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394 " move a2, d0 \n\t"
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395 " cmpi.l #11, d0 \n\t"
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396 " bne reg_test_1_error \n\t"
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397 " move a3, d0 \n\t"
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398 " cmpi.l #12, d0 \n\t"
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399 " bne reg_test_1_error \n\t"
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400 " move a4, d0 \n\t"
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401 " cmpi.l #13, d0 \n\t"
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402 " bne reg_test_1_error \n\t"
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403 " move a5, d0 \n\t"
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404 " cmpi.l #14, d0 \n\t"
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405 " bne reg_test_1_error \n\t"
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406 " move a6, d0 \n\t"
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407 " cmpi.l #15, d0 \n\t"
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408 " bne reg_test_1_error \n\t"
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409 " move ulRegTest1Counter, d0 \n\t"
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410 " addq #1, d0 \n\t"
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411 " move d0, ulRegTest1Counter \n\t"
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412 " bra reg_test_1_start \n\t"
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413 "reg_test_1_error: \n\t"
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414 " bra reg_test_1_error \n\t"
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417 /*-----------------------------------------------------------*/
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419 static void vRegTest2Task( void *pvParameters )
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421 /* Sanity check - did we receive the parameter expected? */
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422 if( pvParameters != &ulRegTest2Counter )
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424 /* Change here so the check task can detect that an error occurred. */
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430 /* Set all the registers to known values, then check that each retains its
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431 expected value - as described at the top of this file. If an error is
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432 found then the loop counter will no longer be incremented allowing the check
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433 task to recognise the error. */
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434 asm volatile ( "reg_test_2_start: \n\t"
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435 " moveq #10, d0 \n\t"
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436 " moveq #20, d1 \n\t"
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437 " moveq #30, d2 \n\t"
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438 " moveq #40, d3 \n\t"
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439 " moveq #50, d4 \n\t"
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440 " moveq #60, d5 \n\t"
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441 " moveq #70, d6 \n\t"
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442 " moveq #80, d7 \n\t"
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443 " move #90, a0 \n\t"
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444 " move #100, a1 \n\t"
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445 " move #110, a2 \n\t"
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446 " move #120, a3 \n\t"
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447 " move #130, a4 \n\t"
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448 " move #140, a5 \n\t"
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449 " move #150, a6 \n\t"
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451 " cmpi.l #10, d0 \n\t"
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452 " bne reg_test_2_error \n\t"
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453 " cmpi.l #20, d1 \n\t"
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454 " bne reg_test_2_error \n\t"
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455 " cmpi.l #30, d2 \n\t"
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456 " bne reg_test_2_error \n\t"
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457 " cmpi.l #40, d3 \n\t"
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458 " bne reg_test_2_error \n\t"
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459 " cmpi.l #50, d4 \n\t"
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460 " bne reg_test_2_error \n\t"
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461 " cmpi.l #60, d5 \n\t"
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462 " bne reg_test_2_error \n\t"
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463 " cmpi.l #70, d6 \n\t"
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464 " bne reg_test_2_error \n\t"
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465 " cmpi.l #80, d7 \n\t"
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466 " bne reg_test_2_error \n\t"
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467 " move a0, d0 \n\t"
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468 " cmpi.l #90, d0 \n\t"
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469 " bne reg_test_2_error \n\t"
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470 " move a1, d0 \n\t"
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471 " cmpi.l #100, d0 \n\t"
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472 " bne reg_test_2_error \n\t"
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473 " move a2, d0 \n\t"
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474 " cmpi.l #110, d0 \n\t"
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475 " bne reg_test_2_error \n\t"
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476 " move a3, d0 \n\t"
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477 " cmpi.l #120, d0 \n\t"
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478 " bne reg_test_2_error \n\t"
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479 " move a4, d0 \n\t"
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480 " cmpi.l #130, d0 \n\t"
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481 " bne reg_test_2_error \n\t"
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482 " move a5, d0 \n\t"
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483 " cmpi.l #140, d0 \n\t"
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484 " bne reg_test_2_error \n\t"
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485 " move a6, d0 \n\t"
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486 " cmpi.l #150, d0 \n\t"
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487 " bne reg_test_2_error \n\t"
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488 " move ulRegTest1Counter, d0 \n\t"
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489 " addq #1, d0 \n\t"
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490 " move d0, ulRegTest2Counter \n\t"
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491 " bra reg_test_2_start \n\t"
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492 "reg_test_2_error: \n\t"
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493 " bra reg_test_2_error \n\t"
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496 /*-----------------------------------------------------------*/
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projects / freertos / blob