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    • What is an RTOS/FreeRTOS?
    • A Compelling Free Solution
    • A Better Type of Open Source
    • Features Overview
    • Coding Standard & Style
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  • Features / Getting Started...
    • Quick Start Guide
    • Tasks & Co-routines
    • More About Tasks...
      • Task States
      • Task Priorities
      • Implementing a Task
      • Idle Task and Idle Hook
    • More About Co-routines...
      • Co-routine Status
      • Co-routine Priorities
      • Implementing a Co-routine
      • Scheduling Co-routines
      • Limitations and Restrictions
      • Quick Co-routine Example
      • Standard Demo Examples
    • Queues, Mutexes, Semaphores...
      • Queues
      • Binary Semaphores
      • Counting Semaphores
      • Mutexes
      • Recursive Mutexes
    • Direct To Task Notifications
      • Introduction
      • ...As Binary Semaphore
      • ...As Counting Semaphore
      • ...As Event Group
      • ...As Mailbox
    • Software Timers
      • Introduction
      • Timer Service Daemon Task
      • Timer Daemon Configuration
      • One-Shot Vs Auto-Reload
      • Resetting a Timer
    • Event Groups (or 'flags')
    • Source Code Organisation
  • More Advanced...
    • Creating a New Project
    • FreeRTOSConfig.h
    • Trace Features
    • Low Power Support
    • Run Time Stats
    • Blocking on Multiple Objects
    • Deferred Interrupt Handling
    • Static Vs Dynamic Memory
    • Memory Management
    • Memory Protection Support
    • Stack Overflow Protection
    • Hook Functions
    • Thread Local Storage Pointers
    • How FreeRTOS Works
      • Introduction
      • Fundamentals
        • Multitasking Basics
        • Scheduling Basics
        • Context Switching
        • Real Time Applications
        • Real Time Scheduling
      • Implementation
        • Building Blocks
          • Development Tools
          • The RTOS Tick
          • GCC Signal Attribute
          • GCC Naked Attribute
          • FreeRTOS Tick Code
          • AVR Context
          • Saving the Context
          • Restoring the Context
        • Detailed Example
          • Putting It All Together
          • Step 1
          • Step 2
          • Step 3
          • Step 4
          • Step 5
          • Step 6
          • Step 7
    • RAM Constrained Design Tips
      • Page 1
      • Page 2
      • Page 3
      • Page 4
      • Page 5
    • Porting Guide
    • Windows Simulator
    • Posix/Linux Simulator
    • Legacy Trace Facility
  • Demo Projects
    • Standard Demos
    • Basic Demos
    • Hardware Independent
    • Modifying a Demo
    • TCP/IP Demos
  • Supported Devices & Demos
    • Official & Contributed Definitions
    • Simple List of Ports
    • Officially Supported Demos
    • TCP/IP Demos
  • API Reference
    • PDF Reference Manual
    • Task Creation
      • TaskHandle_t (type)
      • xTaskCreate()
      • xTaskCreateStatic()
      • vTaskDelete()
    • Task Control
      • vTaskDelay()
      • vTaskDelayUntil()
      • uxTaskPriorityGet()
      • vTaskPrioritySet()
      • vTaskSuspend()
      • vTaskResume()
      • xTaskResumeFromISR()
      • xTaskAbortDelay()
    • Task Utilities
      • uxTaskGetSystemState()
      • vTaskGetInfo()
      • xTaskGetApplicationTaskTag()
      • xTaskGetCurrentTaskHandle()
      • xTaskGetHandle()
      • xTaskGetIdleTaskHandle()
      • uxTaskGetStackHighWaterMark()
      • eTaskGetState()
      • pcTaskGetName()
      • xTaskGetTickCount()
      • xTaskGetTickCountFromISR()
      • xTaskGetSchedulerState()
      • uxTaskGetNumberOfTasks()
      • vTaskList()
      • vTaskStartTrace()
      • ulTaskEndTrace()
      • vTaskGetRunTimeStats()
      • vTaskSetApplicationTaskTag()
      • xTaskCallApplicationTaskHook()
      • 'SetThreadLocalStoragePointer()
      • 'GetThreadLocalStoragePointer()
      • vTaskSetTimeOutState()
      • xTaskCheckForTimeOut()
    • RTOS Kernel Control
      • taskYIELD()
      • taskENTER_CRITICAL()
      • taskEXIT_CRITICAL()
      • taskENTER_CRITICAL_FROM_ISR()
      • taskEXIT_CRITICAL_FROM_ISR()
      • taskDISABLE_INTERRUPTS()
      • taskENABLE_INTERRUPTS()
      • vTaskStartScheduler()
      • vTaskEndScheduler()
      • vTaskSuspendAll()
      • xTaskResumeAll()
      • vTaskStepTick()
    • Direct To Task Notifications
      • xTaskNotifyGive()
      • vTaskNotifyGiveFromISR()
      • ulTaskNotifyTake()
      • xTaskNotify()
      • xTaskNotifyAndQuery()
      • xTaskNotifyAndQueryFromISR()
      • xTaskNotifyFromISR()
      • xTaskNotifyWait()
      • xTaskNotifyStateClear()
    • FreeRTOS-MPU Specific
      • xTaskCreateRestricted()
      • vTaskAllocateMPURegions()
      • 'SWITCH_TO_USER_MODE()
    • Queues
      • xQueueCreate()
      • xQueueCreateStatic()
      • vQueueDelete()
      • xQueueSend()
      • xQueueSendFromISR()
      • xQueueSendToBack()
      • xQueueSendToBackFromISR()
      • xQueueSendToFront()
      • xQueueSendToFrontFromISR()
      • xQueueReceive()
      • xQueueReceiveFromISR()
      • uxQueueMessagesWaiting()
      • uxQueueMessagesWaitingFromISR()
      • uxQueueSpacesAvailable()
      • xQueueReset()
      • xQueueOverwrite()
      • xQueueOverwriteFromISR()
      • xQueuePeek()
      • xQueuePeekFromISR()
      • vQueueAddToRegistry()
      • vQueueUnregisterQueue()
      • pcQueueGetName()
      • xQueueIsQueueFullFromISR()
      • xQueueIsQueueEmptyFromISR()
    • Queue Sets
      • xQueueCreateSet()
      • xQueueAddToSet()
      • xQueueRemoveFromSet()
      • xQueueSelectFromSet()
      • xQueueSelectFromSetFromISR()
    • Semaphore / Mutexes
      • xSemaphoreCreateBinary()
      • xSemaphoreCreateBinaryStatic()
      • vSemaphoreCreateBinary()
      • xSemaphoreCreateCounting()
      • xSemaphoreCreateCountingStatic()
      • xSemaphoreCreateMutex()
      • xSemaphoreCreateMutexStatic()
      • xSem'CreateRecursiveMutex()
      • xSem'CreateRecursiveMutexStatic()
      • vSemaphoreDelete()
      • xSemaphoreGetMutexHolder()
      • uxSemaphoreGetCount()
      • xSemaphoreTake()
      • xSemaphoreTakeFromISR()
      • xSemaphoreTakeRecursive()
      • xSemaphoreGive()
      • xSemaphoreGiveRecursive()
      • xSemaphoreGiveFromISR()
    • Software Timers
      • xTimerCreate()
      • xTimerCreateStatic()
      • xTimerIsTimerActive()
      • xTimerStart()
      • xTimerStop()
      • xTimerChangePeriod()
      • xTimerDelete()
      • xTimerReset()
      • xTimerStartFromISR()
      • xTimerStopFromISR()
      • xTimerChangePeriodFromISR()
      • xTimerResetFromISR()
      • pvTimerGetTimerID()
      • vTimerSetTimerID()
      • xTimerGetTimerDaemonTaskHandle()
      • xTimerPendFunctionCall()
      • xTimerPendFunctionCallFromISR()
      • pcTimerGetName()
      • xTimerGetPeriod()
      • xTimerGetExpiryTime()
    • Event Groups (or 'flags')
      • xEventGroupCreate()
      • xEventGroupCreateStatic()
      • vEventGroupDelete()
      • xEventGroupWaitBits()
      • xEventGroupSetBits()
      • xEventGroupSetBitsFromISR()
      • xEventGroupClearBits()
      • xEventGroupClearBitsFromISR()
      • xEventGroupGetBits()
      • xEventGroupGetBitsFromISR()
      • xEventGroupSync()
    • Co-routines
      • CoRoutineHandle_t (type)
      • xCoRoutineCreate()
      • crDELAY()
      • crQUEUE_SEND()
      • crQUEUE_RECEIVE()
      • crQUEUE_SEND_FROM_ISR()
      • crQUEUE_RECEIVE_FROM_ISR()
      • vCoRoutineSchedule()
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  • Contributed Vs Official Code
  • Contributing Source Code
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Using FreeRTOS on ARM Cortex-A9 embedded processors
Setting ARM Cortex-M3 and ARM Cortex-M4 interrupt priorities for use with the FreeRTOS interrupt nesting model
Using project relative paths in the Eclipse project explorer