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Getting Started...
Quick Start Guide + Videos
Tasks & Co-routines
More About Tasks...
Task States
Task Priorities
Implementing a Task
The Idle Task
Idle Task Hook
More About Co-routines...
Co-routine States
Co-routine Priorities
Implementing a Co-routine
Scheduling Co-routines
Mixing Co-routines & Tasks
Limitations and Restrictions
Quick Example
Other Examples
Inter-task Communication
Queues
Binary Semaphores
Counting Semaphores
Mutexes
Recursive Mutexes
Software Timers
In a Nutshell
Timer Service Task
Implementation Efficiency
Writing Callback Functions
One-Shot and Auto-Reload
Resetting a Timer
Source Code Organisation
Coding Standard
Coding Standard
Naming Conventions
Data Types
Style Guide
Demo Projects
Standard Demos
Basic Demos
Modifying a Demo
TCP/IP Demos
More Advanced...
Trace Features
Run Time Stats
Legacy Trace Facility
How FreeRTOS Works
Customisation
Memory Management
Memory Protection Support
Stack Overflow Protection
Hook Functions
Design Tips
Porting Guide
Windows Simulator
Posix/Linux Simulator
Supported Devices & Demos
Official & Contributed Definitions
Simple List of Ports
Officially Supported Demos
Actel (SmartFusion)
Altera (Nios II)
Atmel (Cortex-M3, ARM7, ARM9, AVR)
Cortus (APS3)
Cypress (PSoC 5)
Energy Micro (EFM32 Cortex-M3)
Freescale (Cortex-M4, HCS12, Coldfire, PPC)
Fujitsu (32bit, 16bit, Cortex-M3)
Infineon (TriCore, XMC4000)
Luminary Micro (Cortex-M3 - See TI)
Microchip (PIC32, PIC24, dsPIC)
MicroSemi (SmartFusion)
NEC (V850ES, 78K0R - See Renesas)
NXP (Cortex-M3, Cortex-M0, Cortex-M4F, ARM7)
Renesas (RX62N, RX210, RL78, SuperH, H8S)
Renesas (V850ES, 78K0R)
Silicon Labs (8051 comp.)
ST (Cortex-M3, ARM7, ARM9)
TI (MSP430X, MSP430, Cortex-M3)
Xilinx (Microblaze, PowerPC)
Windows simulator
x86 (Real Mode)
Contributed Ports (lots!)
TCP/IP Demos
API Reference
PDF Reference Manual
Task Creation
xTaskHandle (type)
xTaskCreate()
vTaskDelete()
TaskControl
vTaskDelay()
vTaskDelayUntil()
uxTaskPriorityGet()
vTaskPrioritySet()
vTaskSuspend()
vTaskResume()
xTaskResumeFromISR()
Task Utilities
xTaskGetCurrentTaskHandle()
uxTaskGetStackHighWaterMark()
xTaskGetTickCount()
xTaskGetTickCountFromISR()
xTaskGetSchedulerState()
uxTaskGetNumberOfTasks()
vTaskList()
vTaskStartTrace()
ulTaskEndTrace()
vTaskGetRunTimeStats()
vTaskSetApplicationTag()
xTaskCallApplicationTaskHook()
Kernel Control
taskYIELD()
taskENTER_CRITICAL()
taskEXIT_CRITICAL()
taskDISABLE_INTERRUPTS()
taskENABLE_INTERRUPTS()
vTaskStartScheduler()
vTaskEndScheduler()
vTaskSuspendAll()
xTaskResumeAll()
FreeRTOS-MPU Specific
xTaskCreateRestricted()
vTaskAllocateMPURegions()
portSWITCH_TO_USER_MODE()
Queues
uxQueueMessagesWaiting()
xQueueCreate()
vQueueDelete()
xQueueSend()
xQueueSendToBack()
xQueueSendToFront()
xQueueReceive()
xQueuePeek()
xQueueSendFromISR()
xQueueSendToBackFromISR()
xQueueSendToFrontFromISR()
xQueueReceiveFromISR()
vQueueAddToRegistry()
vQueueUnregisterQueue()
Semaphore / Mutexes
vSemaphoreCreateBinary()
vSemaphoreCreateCounting()
xSemaphoreCreateMutex()
xSemaphoreCreateRecursiveMutex()
xSemaphoreTake()
xSemaphoreTakeRecursive()
xSemaphoreGive()
xSemaphoreGiveRecursive()
xSemaphoreGiveFromISR()
Software Timers
xTimerCreate()
xTimerIsTimerActive()
xTimerStart()
xTimerStop()
xTimerChangePeriod()
xTimerDelete()
xTimerReset()
xTimerStartFromISR()
xTimerStopFromISR()
xTimerChangePeriodFromISR()
xTimerResetFromISR()
pvTimerGetTimerID()
Co-routines
xCoRoutineHandle (type)
xCoRoutineCreate()
crDELAY()
crQUEUE_SEND()
crQUEUE_RECEIVE()
crQUEUE_SEND_FROM_ISR()
crQUEUE_RECEIVE_FROM_ISR()
vCoRoutineSchedule()
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Community Contributions
Contributing Source Code
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Last site update January 23 2012