2 FreeRTOS V8.0.1 - 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 ***************************************************************************
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9 * FreeRTOS provides completely free yet professionally developed, *
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10 * robust, strictly quality controlled, supported, and cross *
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11 * platform software that has become a de facto standard. *
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13 * Help yourself get started quickly and support the FreeRTOS *
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14 * project by purchasing a FreeRTOS tutorial book, reference *
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15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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19 ***************************************************************************
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21 This file is part of the FreeRTOS distribution.
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23 FreeRTOS is free software; you can redistribute it and/or modify it under
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24 the terms of the GNU General Public License (version 2) as published by the
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25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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27 >>! NOTE: The modification to the GPL is included to allow you to !<<
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28 >>! distribute a combined work that includes FreeRTOS without being !<<
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29 >>! obliged to provide the source code for proprietary components !<<
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30 >>! outside of the FreeRTOS kernel. !<<
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32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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35 link: http://www.freertos.org/a00114.html
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39 ***************************************************************************
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41 * Having a problem? Start by reading the FAQ "My application does *
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42 * not run, what could be wrong?" *
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44 * http://www.FreeRTOS.org/FAQHelp.html *
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46 ***************************************************************************
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48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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49 license and Real Time Engineers Ltd. contact details.
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51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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57 licenses offer ticketed support, indemnification and middleware.
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59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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60 engineered and independently SIL3 certified version for use in safety and
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61 mission critical applications that require provable dependability.
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67 * Creates all the application tasks, then starts the scheduler.
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69 * A task is also created called "uIP". This executes the uIP stack and small
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70 * WEB server sample. All the other tasks are from the set of standard
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71 * demo tasks. The WEB documentation provides more details of the standard
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72 * demo application tasks.
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74 * Main.c also creates a task called "Check". This only executes every three
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75 * seconds but has the highest priority so is guaranteed to get processor time.
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76 * Its main function is to check the status of all the other demo application
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77 * tasks. LED mainCHECK_LED is toggled every three seconds by the check task
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78 * should no error conditions be detected in any of the standard demo tasks.
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79 * The toggle rate increasing to 500ms indicates that at least one error has
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84 /* Standard includes. */
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88 /* Scheduler includes. */
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89 #include "FreeRTOS.h"
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92 /* Demo application includes. */
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93 #include "partest.h"
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95 #include "dynamic.h"
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96 #include "semtest.h"
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98 #include "integer.h"
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100 #include "BlockQ.h"
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102 #include "uip_task.h"
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104 /*-----------------------------------------------------------*/
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106 /* Priorities/stacks for the demo application tasks. */
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107 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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108 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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109 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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110 #define mainUIP_PRIORITY ( tskIDLE_PRIORITY + 3 )
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111 #define mainFLASH_PRIORITY ( tskIDLE_PRIORITY + 2 )
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112 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 1 )
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113 #define mainDEATH_PRIORITY ( tskIDLE_PRIORITY + 2 )
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114 #define mainUIP_TASK_STACK_SIZE ( 250 )
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116 /* The rate at which the on board LED will toggle when there is/is not an
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118 #define mainNO_ERROR_FLASH_PERIOD ( ( TickType_t ) 3000 / portTICK_PERIOD_MS )
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119 #define mainERROR_FLASH_PERIOD ( ( TickType_t ) 500 / portTICK_PERIOD_MS )
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121 /* The LED used by the check task to indicate the system status. */
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122 #define mainCHECK_LED ( 3 )
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123 /*-----------------------------------------------------------*/
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126 * Checks that all the demo application tasks are still executing without error
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127 * - as described at the top of the file.
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129 static long prvCheckOtherTasksAreStillRunning( void );
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132 * The task that executes at the highest priority and calls
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133 * prvCheckOtherTasksAreStillRunning(). See the description at the top
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136 static void vErrorChecks( void *pvParameters );
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139 * Configure the processor for use with the Atmel demo board. This is very
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140 * minimal as most of the setup is performed in the startup code.
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142 static void prvSetupHardware( void );
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144 /*-----------------------------------------------------------*/
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147 * Starts all the other tasks, then starts the scheduler.
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151 /* Configure the processor. */
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152 prvSetupHardware();
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154 /* Setup the port used to flash the LED's. */
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155 vParTestInitialise();
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157 /* Start the task that handles the TCP/IP and WEB server functionality. */
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158 xTaskCreate( vuIP_TASK, "uIP", mainUIP_TASK_STACK_SIZE, NULL, mainUIP_PRIORITY, NULL );
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160 /* Start the demo/test application tasks. These are created in addition
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161 to the TCP/IP task for demonstration and test purposes. */
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162 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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163 vStartDynamicPriorityTasks();
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164 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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165 vStartLEDFlashTasks( mainFLASH_PRIORITY );
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166 vStartIntegerMathTasks( tskIDLE_PRIORITY );
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167 vStartMathTasks( tskIDLE_PRIORITY );
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168 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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170 /* Start the check task - which is defined in this file. */
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171 xTaskCreate( vErrorChecks, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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173 /* Must be last to get created. */
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174 vCreateSuicidalTasks( mainDEATH_PRIORITY );
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176 /* Now all the tasks have been started - start the scheduler. */
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177 vTaskStartScheduler();
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179 /* Should never reach here because the tasks should now be executing! */
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182 /*-----------------------------------------------------------*/
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184 static void prvSetupHardware( void )
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186 /* When using the JTAG debugger the hardware is not always initialised to
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187 the correct default state. This line just ensures that this does not
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188 cause all interrupts to be masked at the start. */
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189 AT91C_BASE_AIC->AIC_EOICR = 0;
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191 /* Most setup is performed by the low level init function called from the
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194 Configure the PIO Lines corresponding to LED1 to LED4 to be outputs as
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195 well as the UART Tx line. */
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196 AT91F_PIO_CfgOutput( AT91C_BASE_PIOB, LED_MASK );
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198 /* Enable the peripheral clock. */
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199 AT91F_PMC_EnablePeriphClock( AT91C_BASE_PMC, 1 << AT91C_ID_PIOA );
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200 AT91F_PMC_EnablePeriphClock( AT91C_BASE_PMC, 1 << AT91C_ID_PIOB ) ;
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201 AT91F_PMC_EnablePeriphClock( AT91C_BASE_PMC, 1 << AT91C_ID_EMAC ) ;
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203 /*-----------------------------------------------------------*/
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205 static void vErrorChecks( void *pvParameters )
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207 TickType_t xDelayPeriod = mainNO_ERROR_FLASH_PERIOD;
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208 TickType_t xLastWakeTime;
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210 /* Initialise xLastWakeTime to ensure the first call to vTaskDelayUntil()
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211 functions correctly. */
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212 xLastWakeTime = xTaskGetTickCount();
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214 /* Cycle for ever, delaying then checking all the other tasks are still
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215 operating without error. If an error is detected then the delay period
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216 is decreased from mainNO_ERROR_FLASH_PERIOD to mainERROR_FLASH_PERIOD so
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217 the Check LED flash rate will increase. */
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220 /* Delay until it is time to execute again. The delay period is
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221 shorter following an error. */
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222 vTaskDelayUntil( &xLastWakeTime, xDelayPeriod );
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224 /* Check all the standard demo application tasks are executing without
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226 if( prvCheckOtherTasksAreStillRunning() != pdPASS )
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228 /* An error has been detected in one of the tasks - flash faster. */
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229 xDelayPeriod = mainERROR_FLASH_PERIOD;
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232 vParTestToggleLED( mainCHECK_LED );
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235 /*-----------------------------------------------------------*/
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237 static long prvCheckOtherTasksAreStillRunning( void )
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239 long lReturn = ( long ) pdPASS;
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242 /* Check all the demo tasks (other than the flash tasks) to ensure
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243 that they are all still running, and that none of them have detected
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246 if( xArePollingQueuesStillRunning() != pdTRUE )
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248 lReturn = ( long ) pdFAIL;
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251 if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
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253 lReturn = ( long ) pdFAIL;
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256 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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258 lReturn = ( long ) pdFAIL;
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261 if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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263 lReturn = ( long ) pdFAIL;
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266 if( xAreMathsTaskStillRunning() != pdTRUE )
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268 lReturn = ( long ) pdFAIL;
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271 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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273 lReturn = ( long ) pdFAIL;
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276 if( xIsCreateTaskStillRunning() != pdTRUE )
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278 lReturn = ( long ) pdFAIL;
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