2 * FreeRTOS Kernel V10.1.0
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3 * Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://www.FreeRTOS.org
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23 * http://aws.amazon.com/freertos
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25 * 1 tab == 4 spaces!
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29 *******************************************************************************
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30 * NOTE 1: The Win32 port is a simulation (or is that emulation?) only! Do not
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31 * expect to get real time behaviour from the Win32 port or this demo
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32 * application. It is provided as a convenient development and demonstration
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35 * Windows will not be running the FreeRTOS simulator threads continuously, so
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36 * the timing information in the FreeRTOS+Trace logs have no meaningful units.
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37 * See the documentation page for the Windows simulator for an explanation of
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39 * http://www.freertos.org/FreeRTOS-Windows-Simulator-Emulator-for-Visual-Studio-and-Eclipse-MingW.html
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40 * - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
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42 * NOTE 2: This project provides two demo applications. A simple blinky style
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43 * project, and a more comprehensive test and demo application. The
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44 * mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
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45 * between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
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46 * in main.c. This file implements the comprehensive test and demo version.
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48 * NOTE 3: This file only contains the source code that is specific to the
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49 * full demo. Generic functions, such FreeRTOS hook functions, are defined in
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51 *******************************************************************************
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53 * main() creates all the demo application tasks, then starts the scheduler.
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54 * The web documentation provides more details of the standard demo application
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55 * tasks, which provide no particular functionality but do provide a good
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56 * example of how to use the FreeRTOS API.
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58 * In addition to the standard demo tasks, the following tasks and tests are
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59 * defined and/or created within this file:
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61 * "Check" task - This only executes every five seconds but has a high priority
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62 * to ensure it gets processor time. Its main function is to check that all the
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63 * standard demo tasks are still operational. While no errors have been
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64 * discovered the check task will print out "OK" and the current simulated tick
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65 * time. If an error is discovered in the execution of a task then the check
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66 * task will print out an appropriate error message.
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71 /* Standard includes. */
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75 /* Kernel includes. */
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76 #include <FreeRTOS.h>
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82 /* Standard demo includes. */
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84 #include "integer.h"
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85 #include "semtest.h"
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87 #include "GenQTest.h"
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89 #include "recmutex.h"
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91 #include "TimerDemo.h"
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92 #include "countsem.h"
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94 #include "dynamic.h"
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95 #include "QueueSet.h"
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96 #include "QueueOverwrite.h"
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97 #include "EventGroupsDemo.h"
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98 #include "IntSemTest.h"
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99 #include "TaskNotify.h"
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100 #include "QueueSetPolling.h"
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101 #include "StaticAllocation.h"
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102 #include "blocktim.h"
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103 #include "AbortDelay.h"
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104 #include "MessageBufferDemo.h"
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105 #include "StreamBufferDemo.h"
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106 #include "StreamBufferInterrupt.h"
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107 #include "MessageBufferAMP.h"
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109 /* Priorities at which the tasks are created. */
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110 #define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
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111 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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112 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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113 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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114 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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115 #define mainFLASH_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
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116 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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117 #define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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118 #define mainFLOP_TASK_PRIORITY ( tskIDLE_PRIORITY )
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119 #define mainQUEUE_OVERWRITE_PRIORITY ( tskIDLE_PRIORITY )
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121 #define mainTIMER_TEST_PERIOD ( 50 )
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123 /* Task function prototypes. */
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124 static void prvCheckTask( void *pvParameters );
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126 /* A task that is created from the idle task to test the functionality of
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127 eTaskStateGet(). */
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128 static void prvTestTask( void *pvParameters );
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131 * Called from the idle task hook function to demonstrate a few utility
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132 * functions that are not demonstrated by any of the standard demo tasks.
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134 static void prvDemonstrateTaskStateAndHandleGetFunctions( void );
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137 * Called from the idle task hook function to demonstrate the use of
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138 * xTimerPendFunctionCall() as xTimerPendFunctionCall() is not demonstrated by
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139 * any of the standard demo tasks.
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141 static void prvDemonstratePendingFunctionCall( void );
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144 * The function that is pended by prvDemonstratePendingFunctionCall().
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146 static void prvPendedFunction( void *pvParameter1, uint32_t ulParameter2 );
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149 * prvDemonstrateTimerQueryFunctions() is called from the idle task hook
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150 * function to demonstrate the use of functions that query information about a
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151 * software timer. prvTestTimerCallback() is the callback function for the
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152 * timer being queried.
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154 static void prvDemonstrateTimerQueryFunctions( void );
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155 static void prvTestTimerCallback( TimerHandle_t xTimer );
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158 * A task to demonstrate the use of the xQueueSpacesAvailable() function.
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160 static void prvDemoQueueSpaceFunctions( void *pvParameters );
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163 * Tasks that ensure indefinite delays are truly indefinite.
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165 static void prvPermanentlyBlockingSemaphoreTask( void *pvParameters );
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166 static void prvPermanentlyBlockingNotificationTask( void *pvParameters );
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168 /*-----------------------------------------------------------*/
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170 /* The variable into which error messages are latched. */
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171 static char *pcStatusMessage = "No errors";
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173 /* This semaphore is created purely to test using the vSemaphoreDelete() and
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174 semaphore tracing API functions. It has no other purpose. */
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175 static SemaphoreHandle_t xMutexToDelete = NULL;
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177 /*-----------------------------------------------------------*/
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179 int main_full( void )
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181 /* Start the check task as described at the top of this file. */
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182 xTaskCreate( prvCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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184 /* Create the standard demo tasks. */
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185 vStartTaskNotifyTask();
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186 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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187 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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188 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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189 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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190 vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
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191 vStartQueuePeekTasks();
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192 vStartMathTasks( mainFLOP_TASK_PRIORITY );
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193 vStartRecursiveMutexTasks();
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194 vStartCountingSemaphoreTasks();
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195 vStartDynamicPriorityTasks();
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196 vStartQueueSetTasks();
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197 vStartQueueOverwriteTask( mainQUEUE_OVERWRITE_PRIORITY );
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198 vStartEventGroupTasks();
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199 vStartInterruptSemaphoreTasks();
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200 vStartQueueSetPollingTask();
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201 vCreateBlockTimeTasks();
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202 vCreateAbortDelayTasks();
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203 xTaskCreate( prvDemoQueueSpaceFunctions, "QSpace", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
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204 xTaskCreate( prvPermanentlyBlockingSemaphoreTask, "BlockSem", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
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205 xTaskCreate( prvPermanentlyBlockingNotificationTask, "BlockNoti", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
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207 vStartMessageBufferTasks( configMINIMAL_STACK_SIZE );
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208 vStartStreamBufferTasks();
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209 vStartStreamBufferInterruptDemo();
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210 vStartMessageBufferAMPTasks( configMINIMAL_STACK_SIZE );
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212 #if( configSUPPORT_STATIC_ALLOCATION == 1 )
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214 vStartStaticallyAllocatedTasks();
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218 #if( configUSE_PREEMPTION != 0 )
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220 /* Don't expect these tasks to pass when preemption is not used. */
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221 vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
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225 /* The suicide tasks must be created last as they need to know how many
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226 tasks were running prior to their creation. This then allows them to
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227 ascertain whether or not the correct/expected number of tasks are running at
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229 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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231 /* Create the semaphore that will be deleted in the idle task hook. This
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232 is done purely to test the use of vSemaphoreDelete(). */
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233 xMutexToDelete = xSemaphoreCreateMutex();
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235 /* Start the scheduler itself. */
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236 vTaskStartScheduler();
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238 /* Should never get here unless there was not enough heap space to create
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239 the idle and other system tasks. */
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242 /*-----------------------------------------------------------*/
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244 static void prvCheckTask( void *pvParameters )
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246 TickType_t xNextWakeTime;
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247 const TickType_t xCycleFrequency = pdMS_TO_TICKS( 2500UL );
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249 /* Just to remove compiler warning. */
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250 ( void ) pvParameters;
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252 /* Initialise xNextWakeTime - this only needs to be done once. */
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253 xNextWakeTime = xTaskGetTickCount();
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257 /* Place this task in the blocked state until it is time to run again. */
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258 vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
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260 /* Check the standard demo tasks are running without error. */
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261 #if( configUSE_PREEMPTION != 0 )
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263 /* These tasks are only created when preemption is used. */
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264 if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
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266 pcStatusMessage = "Error: TimerDemo";
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271 if( xAreStreamBufferTasksStillRunning() != pdTRUE )
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273 pcStatusMessage = "Error: StreamBuffer";
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275 else if( xAreMessageBufferTasksStillRunning() != pdTRUE )
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277 pcStatusMessage = "Error: MessageBuffer";
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279 else if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
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281 pcStatusMessage = "Error: Notification";
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283 else if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
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285 pcStatusMessage = "Error: IntSem";
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287 else if( xAreEventGroupTasksStillRunning() != pdTRUE )
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289 pcStatusMessage = "Error: EventGroup";
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291 else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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293 pcStatusMessage = "Error: IntMath";
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295 else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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297 pcStatusMessage = "Error: GenQueue";
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299 else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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301 pcStatusMessage = "Error: QueuePeek";
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303 else if( xAreBlockingQueuesStillRunning() != pdTRUE )
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305 pcStatusMessage = "Error: BlockQueue";
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307 else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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309 pcStatusMessage = "Error: SemTest";
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311 else if( xArePollingQueuesStillRunning() != pdTRUE )
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313 pcStatusMessage = "Error: PollQueue";
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315 else if( xAreMathsTaskStillRunning() != pdPASS )
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317 pcStatusMessage = "Error: Flop";
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319 else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
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321 pcStatusMessage = "Error: RecMutex";
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323 else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
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325 pcStatusMessage = "Error: CountSem";
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327 else if( xIsCreateTaskStillRunning() != pdTRUE )
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329 pcStatusMessage = "Error: Death";
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331 else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
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333 pcStatusMessage = "Error: Dynamic";
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335 else if( xAreQueueSetTasksStillRunning() != pdPASS )
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337 pcStatusMessage = "Error: Queue set";
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339 else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
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341 pcStatusMessage = "Error: Queue overwrite";
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343 else if( xAreQueueSetPollTasksStillRunning() != pdPASS )
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345 pcStatusMessage = "Error: Queue set polling";
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347 else if( xAreBlockTimeTestTasksStillRunning() != pdPASS )
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349 pcStatusMessage = "Error: Block time";
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351 else if( xAreAbortDelayTestTasksStillRunning() != pdPASS )
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353 pcStatusMessage = "Error: Abort delay";
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355 else if( xIsInterruptStreamBufferDemoStillRunning() != pdPASS )
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357 pcStatusMessage = "Error: Stream buffer interrupt";
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359 else if( xAreMessageBufferAMPTasksStillRunning() != pdPASS )
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361 pcStatusMessage = "Error: Message buffer AMP";
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364 #if( configSUPPORT_STATIC_ALLOCATION == 1 )
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365 else if( xAreStaticAllocationTasksStillRunning() != pdPASS )
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367 pcStatusMessage = "Error: Static allocation";
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369 #endif /* configSUPPORT_STATIC_ALLOCATION */
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371 /* This is the only task that uses stdout so its ok to call printf()
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373 printf( "%s - tick count %zu - free heap %zu - min free heap %zu\r\n", pcStatusMessage,
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374 xTaskGetTickCount(),
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375 xPortGetFreeHeapSize(),
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376 xPortGetMinimumEverFreeHeapSize() );
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379 /*-----------------------------------------------------------*/
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381 static void prvTestTask( void *pvParameters )
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383 const unsigned long ulMSToSleep = 5;
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385 /* Just to remove compiler warnings. */
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386 ( void ) pvParameters;
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388 /* This task is just used to test the eTaskStateGet() function. It
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389 does not have anything to do. */
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392 /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are
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393 tasks waiting to be terminated by the idle task. */
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394 Sleep( ulMSToSleep );
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397 /*-----------------------------------------------------------*/
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399 /* Called from vApplicationIdleHook(), which is defined in main.c. */
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400 void vFullDemoIdleFunction( void )
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402 const unsigned long ulMSToSleep = 15;
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405 /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are
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406 tasks waiting to be terminated by the idle task. */
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407 Sleep( ulMSToSleep );
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409 /* Demonstrate a few utility functions that are not demonstrated by any of
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410 the standard demo tasks. */
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411 prvDemonstrateTaskStateAndHandleGetFunctions();
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413 /* Demonstrate the use of xTimerPendFunctionCall(), which is not
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414 demonstrated by any of the standard demo tasks. */
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415 prvDemonstratePendingFunctionCall();
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417 /* Demonstrate the use of functions that query information about a software
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419 prvDemonstrateTimerQueryFunctions();
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422 /* If xMutexToDelete has not already been deleted, then delete it now.
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423 This is done purely to demonstrate the use of, and test, the
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424 vSemaphoreDelete() macro. Care must be taken not to delete a semaphore
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425 that has tasks blocked on it. */
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426 if( xMutexToDelete != NULL )
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428 /* For test purposes, add the mutex to the registry, then remove it
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429 again, before it is deleted - checking its name is as expected before
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430 and after the assertion into the registry and its removal from the
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432 configASSERT( pcQueueGetName( xMutexToDelete ) == NULL );
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433 vQueueAddToRegistry( xMutexToDelete, "Test_Mutex" );
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434 configASSERT( strcmp( pcQueueGetName( xMutexToDelete ), "Test_Mutex" ) == 0 );
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435 vQueueUnregisterQueue( xMutexToDelete );
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436 configASSERT( pcQueueGetName( xMutexToDelete ) == NULL );
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438 vSemaphoreDelete( xMutexToDelete );
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439 xMutexToDelete = NULL;
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442 /* Exercise heap_5 a bit. The malloc failed hook will trap failed
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443 allocations so there is no need to test here. */
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444 pvAllocated = pvPortMalloc( ( rand() % 500 ) + 1 );
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445 vPortFree( pvAllocated );
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447 /*-----------------------------------------------------------*/
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449 /* Called by vApplicationTickHook(), which is defined in main.c. */
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450 void vFullDemoTickHookFunction( void )
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452 TaskHandle_t xTimerTask;
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454 /* Call the periodic timer test, which tests the timer API functions that
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455 can be called from an ISR. */
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456 #if( configUSE_PREEMPTION != 0 )
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458 /* Only created when preemption is used. */
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459 vTimerPeriodicISRTests();
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463 /* Call the periodic queue overwrite from ISR demo. */
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464 vQueueOverwritePeriodicISRDemo();
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466 /* Write to a queue that is in use as part of the queue set demo to
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467 demonstrate using queue sets from an ISR. */
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468 vQueueSetAccessQueueSetFromISR();
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469 vQueueSetPollingInterruptAccess();
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471 /* Exercise event groups from interrupts. */
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472 vPeriodicEventGroupsProcessing();
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474 /* Exercise giving mutexes from an interrupt. */
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475 vInterruptSemaphorePeriodicTest();
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477 /* Exercise using task notifications from an interrupt. */
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478 xNotifyTaskFromISR();
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480 /* Writes to stream buffer byte by byte to test the stream buffer trigger
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481 level functionality. */
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482 vPeriodicStreamBufferProcessing();
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484 /* Writes a string to a string buffer four bytes at a time to demonstrate
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485 a stream being sent from an interrupt to a task. */
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486 vBasicStreamBufferSendFromISR();
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488 /* For code coverage purposes. */
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489 xTimerTask = xTimerGetTimerDaemonTaskHandle();
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490 configASSERT( uxTaskPriorityGetFromISR( xTimerTask ) == configTIMER_TASK_PRIORITY );
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492 /*-----------------------------------------------------------*/
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494 static void prvPendedFunction( void *pvParameter1, uint32_t ulParameter2 )
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496 static uint32_t ulLastParameter1 = 1000UL, ulLastParameter2 = 0UL;
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497 uint32_t ulParameter1;
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499 ulParameter1 = ( uint32_t ) pvParameter1;
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501 /* Ensure the parameters are as expected. */
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502 configASSERT( ulParameter1 == ( ulLastParameter1 + 1 ) );
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503 configASSERT( ulParameter2 == ( ulLastParameter2 + 1 ) );
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505 /* Remember the parameters for the next time the function is called. */
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506 ulLastParameter1 = ulParameter1;
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507 ulLastParameter2 = ulParameter2;
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509 /*-----------------------------------------------------------*/
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511 static void prvTestTimerCallback( TimerHandle_t xTimer )
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513 /* This is the callback function for the timer accessed by
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514 prvDemonstrateTimerQueryFunctions(). The callback does not do anything. */
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517 /*-----------------------------------------------------------*/
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519 static void prvDemonstrateTimerQueryFunctions( void )
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521 static TimerHandle_t xTimer = NULL;
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522 const char *pcTimerName = "TestTimer";
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523 volatile TickType_t xExpiryTime;
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524 const TickType_t xDontBlock = 0;
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526 if( xTimer == NULL )
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528 xTimer = xTimerCreate( pcTimerName, portMAX_DELAY, pdTRUE, NULL, prvTestTimerCallback );
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530 if( xTimer != NULL )
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532 /* Called from the idle task so a block time must not be
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534 xTimerStart( xTimer, xDontBlock );
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538 if( xTimer != NULL )
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540 /* Demonstrate querying a timer's name. */
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541 configASSERT( strcmp( pcTimerGetName( xTimer ), pcTimerName ) == 0 );
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543 /* Demonstrate querying a timer's period. */
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544 configASSERT( xTimerGetPeriod( xTimer ) == portMAX_DELAY );
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546 /* Demonstrate querying a timer's next expiry time, although nothing is
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547 done with the returned value. Note if the expiry time is less than the
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548 maximum tick count then the expiry time has overflowed from the current
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549 time. In this case the expiry time was set to portMAX_DELAY, so it is
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550 expected to be less than the current time until the current time has
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551 itself overflowed. */
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552 xExpiryTime = xTimerGetExpiryTime( xTimer );
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553 ( void ) xExpiryTime;
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556 /*-----------------------------------------------------------*/
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558 static void prvDemonstratePendingFunctionCall( void )
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560 static uint32_t ulParameter1 = 1000UL, ulParameter2 = 0UL;
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561 const TickType_t xDontBlock = 0; /* This is called from the idle task so must *not* attempt to block. */
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563 /* prvPendedFunction() just expects the parameters to be incremented by one
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564 each time it is called. */
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568 /* Pend the function call, sending the parameters. */
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569 xTimerPendFunctionCall( prvPendedFunction, ( void * ) ulParameter1, ulParameter2, xDontBlock );
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571 /*-----------------------------------------------------------*/
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573 static void prvDemonstrateTaskStateAndHandleGetFunctions( void )
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575 TaskHandle_t xIdleTaskHandle, xTimerTaskHandle;
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577 static portBASE_TYPE xPerformedOneShotTests = pdFALSE;
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578 TaskHandle_t xTestTask;
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579 TaskStatus_t xTaskInfo;
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580 extern StackType_t uxTimerTaskStack[];
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582 /* Demonstrate the use of the xTimerGetTimerDaemonTaskHandle() and
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583 xTaskGetIdleTaskHandle() functions. Also try using the function that sets
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584 the task number. */
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585 xIdleTaskHandle = xTaskGetIdleTaskHandle();
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586 xTimerTaskHandle = xTimerGetTimerDaemonTaskHandle();
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588 /* This is the idle hook, so the current task handle should equal the
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589 returned idle task handle. */
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590 if( xTaskGetCurrentTaskHandle() != xIdleTaskHandle )
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592 pcStatusMessage = "Error: Returned idle task handle was incorrect";
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595 /* Check the same handle is obtained using the idle task's name. First try
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596 with the wrong name, then the right name. */
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597 if( xTaskGetHandle( "Idle" ) == xIdleTaskHandle )
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599 pcStatusMessage = "Error: Returned handle for name Idle was incorrect";
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602 if( xTaskGetHandle( "IDLE" ) != xIdleTaskHandle )
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604 pcStatusMessage = "Error: Returned handle for name Idle was incorrect";
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607 /* Check the timer task handle was returned correctly. */
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608 pcTaskName = pcTaskGetName( xTimerTaskHandle );
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609 if( strcmp( pcTaskName, "Tmr Svc" ) != 0 )
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611 pcStatusMessage = "Error: Returned timer task handle was incorrect";
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614 if( xTaskGetHandle( "Tmr Svc" ) != xTimerTaskHandle )
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616 pcStatusMessage = "Error: Returned handle for name Tmr Svc was incorrect";
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619 /* This task is running, make sure it's state is returned as running. */
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620 if( eTaskStateGet( xIdleTaskHandle ) != eRunning )
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622 pcStatusMessage = "Error: Returned idle task state was incorrect";
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625 /* If this task is running, then the timer task must be blocked. */
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626 if( eTaskStateGet( xTimerTaskHandle ) != eBlocked )
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628 pcStatusMessage = "Error: Returned timer task state was incorrect";
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631 /* Also with the vTaskGetInfo() function. */
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632 vTaskGetInfo( xTimerTaskHandle, /* The task being queried. */
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633 &xTaskInfo, /* The structure into which information on the task will be written. */
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634 pdTRUE, /* Include the task's high watermark in the structure. */
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635 eInvalid ); /* Include the task state in the structure. */
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637 /* Check the information returned by vTaskGetInfo() is as expected. */
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638 if( ( xTaskInfo.eCurrentState != eBlocked ) ||
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639 ( strcmp( xTaskInfo.pcTaskName, "Tmr Svc" ) != 0 ) ||
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640 ( xTaskInfo.uxCurrentPriority != configTIMER_TASK_PRIORITY ) ||
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641 ( xTaskInfo.pxStackBase != uxTimerTaskStack ) ||
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642 ( xTaskInfo.xHandle != xTimerTaskHandle ) )
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644 pcStatusMessage = "Error: vTaskGetInfo() returned incorrect information about the timer task";
\r
647 /* Other tests that should only be performed once follow. The test task
\r
648 is not created on each iteration because to do so would cause the death
\r
649 task to report an error (too many tasks running). */
\r
650 if( xPerformedOneShotTests == pdFALSE )
\r
652 /* Don't run this part of the test again. */
\r
653 xPerformedOneShotTests = pdTRUE;
\r
655 /* Create a test task to use to test other eTaskStateGet() return values. */
\r
656 if( xTaskCreate( prvTestTask, "Test", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, &xTestTask ) == pdPASS )
\r
658 /* If this task is running, the test task must be in the ready state. */
\r
659 if( eTaskStateGet( xTestTask ) != eReady )
\r
661 pcStatusMessage = "Error: Returned test task state was incorrect 1";
\r
664 /* Now suspend the test task and check its state is reported correctly. */
\r
665 vTaskSuspend( xTestTask );
\r
666 if( eTaskStateGet( xTestTask ) != eSuspended )
\r
668 pcStatusMessage = "Error: Returned test task state was incorrect 2";
\r
671 /* Now delete the task and check its state is reported correctly. */
\r
672 vTaskDelete( xTestTask );
\r
673 if( eTaskStateGet( xTestTask ) != eDeleted )
\r
675 pcStatusMessage = "Error: Returned test task state was incorrect 3";
\r
680 /*-----------------------------------------------------------*/
\r
682 static void prvDemoQueueSpaceFunctions( void *pvParameters )
\r
684 QueueHandle_t xQueue = NULL;
\r
685 const unsigned portBASE_TYPE uxQueueLength = 10;
\r
686 unsigned portBASE_TYPE uxReturn, x;
\r
688 /* Remove compiler warnings. */
\r
689 ( void ) pvParameters;
\r
691 /* Create the queue that will be used. Nothing is actually going to be
\r
692 sent or received so the queue item size is set to 0. */
\r
693 xQueue = xQueueCreate( uxQueueLength, 0 );
\r
694 configASSERT( xQueue );
\r
698 for( x = 0; x < uxQueueLength; x++ )
\r
700 /* Ask how many messages are available... */
\r
701 uxReturn = uxQueueMessagesWaiting( xQueue );
\r
703 /* Check the number of messages being reported as being available
\r
704 is as expected, and force an assert if not. */
\r
705 if( uxReturn != x )
\r
707 /* xQueue cannot be NULL so this is deliberately causing an
\r
708 assert to be triggered as there is an error. */
\r
709 configASSERT( xQueue == NULL );
\r
712 /* Ask how many spaces remain in the queue... */
\r
713 uxReturn = uxQueueSpacesAvailable( xQueue );
\r
715 /* Check the number of spaces being reported as being available
\r
716 is as expected, and force an assert if not. */
\r
717 if( uxReturn != ( uxQueueLength - x ) )
\r
719 /* xQueue cannot be NULL so this is deliberately causing an
\r
720 assert to be triggered as there is an error. */
\r
721 configASSERT( xQueue == NULL );
\r
724 /* Fill one more space in the queue. */
\r
725 xQueueSendToBack( xQueue, NULL, 0 );
\r
728 /* Perform the same check while the queue is full. */
\r
729 uxReturn = uxQueueMessagesWaiting( xQueue );
\r
730 if( uxReturn != uxQueueLength )
\r
732 configASSERT( xQueue == NULL );
\r
735 uxReturn = uxQueueSpacesAvailable( xQueue );
\r
737 if( uxReturn != 0 )
\r
739 configASSERT( xQueue == NULL );
\r
742 /* The queue is full, start again. */
\r
743 xQueueReset( xQueue );
\r
745 #if( configUSE_PREEMPTION == 0 )
\r
750 /*-----------------------------------------------------------*/
\r
752 static void prvPermanentlyBlockingSemaphoreTask( void *pvParameters )
\r
754 SemaphoreHandle_t xSemaphore;
\r
756 /* Prevent compiler warning about unused parameter in the case that
\r
757 configASSERT() is not defined. */
\r
758 ( void ) pvParameters;
\r
760 /* This task should block on a semaphore, and never return. */
\r
761 xSemaphore = xSemaphoreCreateBinary();
\r
762 configASSERT( xSemaphore );
\r
764 xSemaphoreTake( xSemaphore, portMAX_DELAY );
\r
766 /* The above xSemaphoreTake() call should never return, force an assert if
\r
768 configASSERT( pvParameters != NULL );
\r
769 vTaskDelete( NULL );
\r
771 /*-----------------------------------------------------------*/
\r
773 static void prvPermanentlyBlockingNotificationTask( void *pvParameters )
\r
775 /* Prevent compiler warning about unused parameter in the case that
\r
776 configASSERT() is not defined. */
\r
777 ( void ) pvParameters;
\r
779 /* This task should block on a task notification, and never return. */
\r
780 ulTaskNotifyTake( pdTRUE, portMAX_DELAY );
\r
782 /* The above ulTaskNotifyTake() call should never return, force an assert
\r
784 configASSERT( pvParameters != NULL );
\r
785 vTaskDelete( NULL );
\r