2 * FreeRTOS Kernel V10.2.1
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3 * Copyright (C) 2019 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( 4000UL );
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248 HeapStats_t xHeapStats;
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250 /* Just to remove compiler warning. */
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251 ( void ) pvParameters;
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253 /* Initialise xNextWakeTime - this only needs to be done once. */
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254 xNextWakeTime = xTaskGetTickCount();
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258 /* Place this task in the blocked state until it is time to run again. */
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259 vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
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261 /* Check the standard demo tasks are running without error. */
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262 #if( configUSE_PREEMPTION != 0 )
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264 /* These tasks are only created when preemption is used. */
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265 if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
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267 pcStatusMessage = "Error: TimerDemo";
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272 if( xAreStreamBufferTasksStillRunning() != pdTRUE )
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274 pcStatusMessage = "Error: StreamBuffer";
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276 else if( xAreMessageBufferTasksStillRunning() != pdTRUE )
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278 pcStatusMessage = "Error: MessageBuffer";
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280 else if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
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282 pcStatusMessage = "Error: Notification";
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284 else if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
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286 pcStatusMessage = "Error: IntSem";
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288 else if( xAreEventGroupTasksStillRunning() != pdTRUE )
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290 pcStatusMessage = "Error: EventGroup";
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292 else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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294 pcStatusMessage = "Error: IntMath";
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296 else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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298 pcStatusMessage = "Error: GenQueue";
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300 else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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302 pcStatusMessage = "Error: QueuePeek";
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304 else if( xAreBlockingQueuesStillRunning() != pdTRUE )
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306 pcStatusMessage = "Error: BlockQueue";
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308 else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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310 pcStatusMessage = "Error: SemTest";
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312 else if( xArePollingQueuesStillRunning() != pdTRUE )
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314 pcStatusMessage = "Error: PollQueue";
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316 else if( xAreMathsTaskStillRunning() != pdPASS )
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318 pcStatusMessage = "Error: Flop";
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320 else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
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322 pcStatusMessage = "Error: RecMutex";
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324 else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
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326 pcStatusMessage = "Error: CountSem";
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328 else if( xIsCreateTaskStillRunning() != pdTRUE )
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330 pcStatusMessage = "Error: Death";
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332 else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
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334 pcStatusMessage = "Error: Dynamic";
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336 else if( xAreQueueSetTasksStillRunning() != pdPASS )
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338 pcStatusMessage = "Error: Queue set";
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340 else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
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342 pcStatusMessage = "Error: Queue overwrite";
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344 else if( xAreQueueSetPollTasksStillRunning() != pdPASS )
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346 pcStatusMessage = "Error: Queue set polling";
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348 else if( xAreBlockTimeTestTasksStillRunning() != pdPASS )
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350 pcStatusMessage = "Error: Block time";
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352 else if( xAreAbortDelayTestTasksStillRunning() != pdPASS )
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354 pcStatusMessage = "Error: Abort delay";
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356 else if( xIsInterruptStreamBufferDemoStillRunning() != pdPASS )
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358 pcStatusMessage = "Error: Stream buffer interrupt";
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360 else if( xAreMessageBufferAMPTasksStillRunning() != pdPASS )
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362 pcStatusMessage = "Error: Message buffer AMP";
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365 #if( configSUPPORT_STATIC_ALLOCATION == 1 )
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366 else if( xAreStaticAllocationTasksStillRunning() != pdPASS )
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368 pcStatusMessage = "Error: Static allocation";
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370 #endif /* configSUPPORT_STATIC_ALLOCATION */
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372 /* This is the only task that uses stdout so its ok to call printf()
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374 vPortGetHeapStats( &xHeapStats );
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376 configASSERT( xHeapStats.xAvailableHeapSpaceInBytes == xPortGetFreeHeapSize() );
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377 configASSERT( xHeapStats.xMinimumEverFreeBytesRemaining == xPortGetMinimumEverFreeHeapSize() );
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379 printf( "%s - tick count %zu - free heap %zu - min free heap %zu - largest free block %zu \r\n",
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381 xTaskGetTickCount(),
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382 xHeapStats.xAvailableHeapSpaceInBytes,
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383 xHeapStats.xMinimumEverFreeBytesRemaining,
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384 xHeapStats.xSizeOfLargestFreeBlockInBytes );
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387 /*-----------------------------------------------------------*/
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389 static void prvTestTask( void *pvParameters )
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391 const unsigned long ulMSToSleep = 5;
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393 /* Just to remove compiler warnings. */
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394 ( void ) pvParameters;
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396 /* This task is just used to test the eTaskStateGet() function. It
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397 does not have anything to do. */
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400 /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are
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401 tasks waiting to be terminated by the idle task. */
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402 Sleep( ulMSToSleep );
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405 /*-----------------------------------------------------------*/
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407 /* Called from vApplicationIdleHook(), which is defined in main.c. */
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408 void vFullDemoIdleFunction( void )
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410 const unsigned long ulMSToSleep = 15;
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413 /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are
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414 tasks waiting to be terminated by the idle task. */
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415 Sleep( ulMSToSleep );
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417 /* Demonstrate a few utility functions that are not demonstrated by any of
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418 the standard demo tasks. */
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419 prvDemonstrateTaskStateAndHandleGetFunctions();
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421 /* Demonstrate the use of xTimerPendFunctionCall(), which is not
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422 demonstrated by any of the standard demo tasks. */
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423 prvDemonstratePendingFunctionCall();
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425 /* Demonstrate the use of functions that query information about a software
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427 prvDemonstrateTimerQueryFunctions();
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430 /* If xMutexToDelete has not already been deleted, then delete it now.
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431 This is done purely to demonstrate the use of, and test, the
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432 vSemaphoreDelete() macro. Care must be taken not to delete a semaphore
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433 that has tasks blocked on it. */
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434 if( xMutexToDelete != NULL )
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436 /* For test purposes, add the mutex to the registry, then remove it
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437 again, before it is deleted - checking its name is as expected before
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438 and after the assertion into the registry and its removal from the
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440 configASSERT( pcQueueGetName( xMutexToDelete ) == NULL );
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441 vQueueAddToRegistry( xMutexToDelete, "Test_Mutex" );
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442 configASSERT( strcmp( pcQueueGetName( xMutexToDelete ), "Test_Mutex" ) == 0 );
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443 vQueueUnregisterQueue( xMutexToDelete );
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444 configASSERT( pcQueueGetName( xMutexToDelete ) == NULL );
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446 vSemaphoreDelete( xMutexToDelete );
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447 xMutexToDelete = NULL;
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450 /* Exercise heap_5 a bit. The malloc failed hook will trap failed
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451 allocations so there is no need to test here. */
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452 pvAllocated = pvPortMalloc( ( rand() % 500 ) + 1 );
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453 vPortFree( pvAllocated );
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455 /*-----------------------------------------------------------*/
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457 /* Called by vApplicationTickHook(), which is defined in main.c. */
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458 void vFullDemoTickHookFunction( void )
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460 TaskHandle_t xTimerTask;
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462 /* Call the periodic timer test, which tests the timer API functions that
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463 can be called from an ISR. */
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464 #if( configUSE_PREEMPTION != 0 )
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466 /* Only created when preemption is used. */
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467 vTimerPeriodicISRTests();
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471 /* Call the periodic queue overwrite from ISR demo. */
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472 vQueueOverwritePeriodicISRDemo();
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474 /* Write to a queue that is in use as part of the queue set demo to
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475 demonstrate using queue sets from an ISR. */
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476 vQueueSetAccessQueueSetFromISR();
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477 vQueueSetPollingInterruptAccess();
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479 /* Exercise event groups from interrupts. */
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480 vPeriodicEventGroupsProcessing();
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482 /* Exercise giving mutexes from an interrupt. */
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483 vInterruptSemaphorePeriodicTest();
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485 /* Exercise using task notifications from an interrupt. */
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486 xNotifyTaskFromISR();
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488 /* Writes to stream buffer byte by byte to test the stream buffer trigger
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489 level functionality. */
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490 vPeriodicStreamBufferProcessing();
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492 /* Writes a string to a string buffer four bytes at a time to demonstrate
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493 a stream being sent from an interrupt to a task. */
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494 vBasicStreamBufferSendFromISR();
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496 /* For code coverage purposes. */
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497 xTimerTask = xTimerGetTimerDaemonTaskHandle();
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498 configASSERT( uxTaskPriorityGetFromISR( xTimerTask ) == configTIMER_TASK_PRIORITY );
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500 /*-----------------------------------------------------------*/
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502 static void prvPendedFunction( void *pvParameter1, uint32_t ulParameter2 )
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504 static uint32_t ulLastParameter1 = 1000UL, ulLastParameter2 = 0UL;
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505 uint32_t ulParameter1;
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507 ulParameter1 = ( uint32_t ) pvParameter1;
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509 /* Ensure the parameters are as expected. */
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510 configASSERT( ulParameter1 == ( ulLastParameter1 + 1 ) );
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511 configASSERT( ulParameter2 == ( ulLastParameter2 + 1 ) );
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513 /* Remember the parameters for the next time the function is called. */
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514 ulLastParameter1 = ulParameter1;
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515 ulLastParameter2 = ulParameter2;
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517 /*-----------------------------------------------------------*/
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519 static void prvTestTimerCallback( TimerHandle_t xTimer )
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521 /* This is the callback function for the timer accessed by
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522 prvDemonstrateTimerQueryFunctions(). The callback does not do anything. */
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525 /*-----------------------------------------------------------*/
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527 static void prvDemonstrateTimerQueryFunctions( void )
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529 static TimerHandle_t xTimer = NULL;
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530 const char *pcTimerName = "TestTimer";
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531 volatile TickType_t xExpiryTime;
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532 const TickType_t xDontBlock = 0;
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534 if( xTimer == NULL )
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536 xTimer = xTimerCreate( pcTimerName, portMAX_DELAY, pdTRUE, NULL, prvTestTimerCallback );
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538 if( xTimer != NULL )
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540 /* Called from the idle task so a block time must not be
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542 xTimerStart( xTimer, xDontBlock );
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546 if( xTimer != NULL )
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548 /* Demonstrate querying a timer's name. */
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549 configASSERT( strcmp( pcTimerGetName( xTimer ), pcTimerName ) == 0 );
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551 /* Demonstrate querying a timer's period. */
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552 configASSERT( xTimerGetPeriod( xTimer ) == portMAX_DELAY );
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554 /* Demonstrate querying a timer's next expiry time, although nothing is
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555 done with the returned value. Note if the expiry time is less than the
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556 maximum tick count then the expiry time has overflowed from the current
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557 time. In this case the expiry time was set to portMAX_DELAY, so it is
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558 expected to be less than the current time until the current time has
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559 itself overflowed. */
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560 xExpiryTime = xTimerGetExpiryTime( xTimer );
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561 ( void ) xExpiryTime;
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564 /*-----------------------------------------------------------*/
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566 static void prvDemonstratePendingFunctionCall( void )
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568 static uint32_t ulParameter1 = 1000UL, ulParameter2 = 0UL;
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569 const TickType_t xDontBlock = 0; /* This is called from the idle task so must *not* attempt to block. */
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571 /* prvPendedFunction() just expects the parameters to be incremented by one
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572 each time it is called. */
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576 /* Pend the function call, sending the parameters. */
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577 xTimerPendFunctionCall( prvPendedFunction, ( void * ) ulParameter1, ulParameter2, xDontBlock );
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579 /*-----------------------------------------------------------*/
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581 static void prvDemonstrateTaskStateAndHandleGetFunctions( void )
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583 TaskHandle_t xIdleTaskHandle, xTimerTaskHandle;
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585 static portBASE_TYPE xPerformedOneShotTests = pdFALSE;
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586 TaskHandle_t xTestTask;
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587 TaskStatus_t xTaskInfo;
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588 extern StackType_t uxTimerTaskStack[];
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590 /* Demonstrate the use of the xTimerGetTimerDaemonTaskHandle() and
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591 xTaskGetIdleTaskHandle() functions. Also try using the function that sets
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592 the task number. */
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593 xIdleTaskHandle = xTaskGetIdleTaskHandle();
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594 xTimerTaskHandle = xTimerGetTimerDaemonTaskHandle();
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596 /* This is the idle hook, so the current task handle should equal the
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597 returned idle task handle. */
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598 if( xTaskGetCurrentTaskHandle() != xIdleTaskHandle )
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600 pcStatusMessage = "Error: Returned idle task handle was incorrect";
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603 /* Check the same handle is obtained using the idle task's name. First try
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604 with the wrong name, then the right name. */
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605 if( xTaskGetHandle( "Idle" ) == xIdleTaskHandle )
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607 pcStatusMessage = "Error: Returned handle for name Idle was incorrect";
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610 if( xTaskGetHandle( "IDLE" ) != xIdleTaskHandle )
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612 pcStatusMessage = "Error: Returned handle for name Idle was incorrect";
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615 /* Check the timer task handle was returned correctly. */
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616 pcTaskName = pcTaskGetName( xTimerTaskHandle );
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617 if( strcmp( pcTaskName, "Tmr Svc" ) != 0 )
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619 pcStatusMessage = "Error: Returned timer task handle was incorrect";
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622 if( xTaskGetHandle( "Tmr Svc" ) != xTimerTaskHandle )
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624 pcStatusMessage = "Error: Returned handle for name Tmr Svc was incorrect";
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627 /* This task is running, make sure it's state is returned as running. */
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628 if( eTaskStateGet( xIdleTaskHandle ) != eRunning )
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630 pcStatusMessage = "Error: Returned idle task state was incorrect";
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633 /* If this task is running, then the timer task must be blocked. */
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634 if( eTaskStateGet( xTimerTaskHandle ) != eBlocked )
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636 pcStatusMessage = "Error: Returned timer task state was incorrect";
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639 /* Also with the vTaskGetInfo() function. */
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640 vTaskGetInfo( xTimerTaskHandle, /* The task being queried. */
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641 &xTaskInfo, /* The structure into which information on the task will be written. */
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642 pdTRUE, /* Include the task's high watermark in the structure. */
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643 eInvalid ); /* Include the task state in the structure. */
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645 /* Check the information returned by vTaskGetInfo() is as expected. */
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646 if( ( xTaskInfo.eCurrentState != eBlocked ) ||
\r
647 ( strcmp( xTaskInfo.pcTaskName, "Tmr Svc" ) != 0 ) ||
\r
648 ( xTaskInfo.uxCurrentPriority != configTIMER_TASK_PRIORITY ) ||
\r
649 ( xTaskInfo.pxStackBase != uxTimerTaskStack ) ||
\r
650 ( xTaskInfo.xHandle != xTimerTaskHandle ) )
\r
652 pcStatusMessage = "Error: vTaskGetInfo() returned incorrect information about the timer task";
\r
655 /* Other tests that should only be performed once follow. The test task
\r
656 is not created on each iteration because to do so would cause the death
\r
657 task to report an error (too many tasks running). */
\r
658 if( xPerformedOneShotTests == pdFALSE )
\r
660 /* Don't run this part of the test again. */
\r
661 xPerformedOneShotTests = pdTRUE;
\r
663 /* Create a test task to use to test other eTaskStateGet() return values. */
\r
664 if( xTaskCreate( prvTestTask, "Test", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, &xTestTask ) == pdPASS )
\r
666 /* If this task is running, the test task must be in the ready state. */
\r
667 if( eTaskStateGet( xTestTask ) != eReady )
\r
669 pcStatusMessage = "Error: Returned test task state was incorrect 1";
\r
672 /* Now suspend the test task and check its state is reported correctly. */
\r
673 vTaskSuspend( xTestTask );
\r
674 if( eTaskStateGet( xTestTask ) != eSuspended )
\r
676 pcStatusMessage = "Error: Returned test task state was incorrect 2";
\r
679 /* Now delete the task and check its state is reported correctly. */
\r
680 vTaskDelete( xTestTask );
\r
681 if( eTaskStateGet( xTestTask ) != eDeleted )
\r
683 pcStatusMessage = "Error: Returned test task state was incorrect 3";
\r
688 /*-----------------------------------------------------------*/
\r
690 static void prvDemoQueueSpaceFunctions( void *pvParameters )
\r
692 QueueHandle_t xQueue = NULL;
\r
693 const unsigned portBASE_TYPE uxQueueLength = 10;
\r
694 unsigned portBASE_TYPE uxReturn, x;
\r
696 /* Remove compiler warnings. */
\r
697 ( void ) pvParameters;
\r
699 /* Create the queue that will be used. Nothing is actually going to be
\r
700 sent or received so the queue item size is set to 0. */
\r
701 xQueue = xQueueCreate( uxQueueLength, 0 );
\r
702 configASSERT( xQueue );
\r
706 for( x = 0; x < uxQueueLength; x++ )
\r
708 /* Ask how many messages are available... */
\r
709 uxReturn = uxQueueMessagesWaiting( xQueue );
\r
711 /* Check the number of messages being reported as being available
\r
712 is as expected, and force an assert if not. */
\r
713 if( uxReturn != x )
\r
715 /* xQueue cannot be NULL so this is deliberately causing an
\r
716 assert to be triggered as there is an error. */
\r
717 configASSERT( xQueue == NULL );
\r
720 /* Ask how many spaces remain in the queue... */
\r
721 uxReturn = uxQueueSpacesAvailable( xQueue );
\r
723 /* Check the number of spaces being reported as being available
\r
724 is as expected, and force an assert if not. */
\r
725 if( uxReturn != ( uxQueueLength - x ) )
\r
727 /* xQueue cannot be NULL so this is deliberately causing an
\r
728 assert to be triggered as there is an error. */
\r
729 configASSERT( xQueue == NULL );
\r
732 /* Fill one more space in the queue. */
\r
733 xQueueSendToBack( xQueue, NULL, 0 );
\r
736 /* Perform the same check while the queue is full. */
\r
737 uxReturn = uxQueueMessagesWaiting( xQueue );
\r
738 if( uxReturn != uxQueueLength )
\r
740 configASSERT( xQueue == NULL );
\r
743 uxReturn = uxQueueSpacesAvailable( xQueue );
\r
745 if( uxReturn != 0 )
\r
747 configASSERT( xQueue == NULL );
\r
750 /* The queue is full, start again. */
\r
751 xQueueReset( xQueue );
\r
753 #if( configUSE_PREEMPTION == 0 )
\r
758 /*-----------------------------------------------------------*/
\r
760 static void prvPermanentlyBlockingSemaphoreTask( void *pvParameters )
\r
762 SemaphoreHandle_t xSemaphore;
\r
764 /* Prevent compiler warning about unused parameter in the case that
\r
765 configASSERT() is not defined. */
\r
766 ( void ) pvParameters;
\r
768 /* This task should block on a semaphore, and never return. */
\r
769 xSemaphore = xSemaphoreCreateBinary();
\r
770 configASSERT( xSemaphore );
\r
772 xSemaphoreTake( xSemaphore, portMAX_DELAY );
\r
774 /* The above xSemaphoreTake() call should never return, force an assert if
\r
776 configASSERT( pvParameters != NULL );
\r
777 vTaskDelete( NULL );
\r
779 /*-----------------------------------------------------------*/
\r
781 static void prvPermanentlyBlockingNotificationTask( void *pvParameters )
\r
783 /* Prevent compiler warning about unused parameter in the case that
\r
784 configASSERT() is not defined. */
\r
785 ( void ) pvParameters;
\r
787 /* This task should block on a task notification, and never return. */
\r
788 ulTaskNotifyTake( pdTRUE, portMAX_DELAY );
\r
790 /* The above ulTaskNotifyTake() call should never return, force an assert
\r
792 configASSERT( pvParameters != NULL );
\r
793 vTaskDelete( NULL );
\r