FREERTOS API函数总结

目录

一、任务创建 ................................................................................................................................... 4

1. xTaskCreate ............................................................................................................................... 4

2. vTaskDelete ............................................................................................................................... 5

二、任务控制 ................................................................................................................................... 5

3. vTaskDelay ................................................................................................................................. 5

4. vTaskDelayUntil ........................................................................................................................ 6

5. uxTaskPriorityGet ..................................................................................................................... 8

6. vTaskPrioritySet ........................................................................................................................ 8

12. vTaskEndSchedule ............................................................................................................... 12

13. vTaskSuspendAll .................................................................................................................. 13

四、队列管理 ................................................................................................................................. 13

14. xQueueCreate[队列管理] .................................................................................................... 13

15. xQueueSend[队列管理] ....................................................................................................... 14

16. xQueueSendToBack[队列管理] ......................................................................................... 15

17. xQueueSendToFront[队列管理] ........................................................................................ 16

18. xQueueReceive[队列管理] .................................................................................................. 18

19. xQueuePeek[队列管理] ....................................................................................................... 19

20. xQueueSendFromISR[队列管理] ....................................................................................... 20

26. xSemaphoreCreateCounting[信号量] ..................................................................... 26

27. xSemaphoreCreateMutex[信号量] ........................................................................... 27

28. xSemaphoreCreateRecursiveMutex[信号量] ......................................................... 28

29. xSemaphoreTake[信号量] .......................................................................................... 29

30. xSemaphoreTakeRecursive[信号量] ........................................................................ 30

31. xSemaphoreGive[信号量] ........................................................................................... 31

32. xSemaphoreGiveRecursive[信号量] ......................................................................... 32

33. xSemaphoreGiveFromISR[信号量] ........................................................................... 32

六、联合程序 ................................................................................................................................. 33

34. xCoRoutineCreate[联合程序] ..................................................................................... 33

37. crQUEUE_SEND[联合程序].......................................................................................... 36

38. crQUEUE_RECEIVE[联合程序] ..................................................................................... 37

39. crQUEUE_SEND_FROM_ISR[联合程序] .................................................................... 39

40. crQUEUE_RECEIVE_FROM_ISR[联合程序] ............................................................... 40

unsigned portSHORT usStackDepth,

void *pvParameters,

unsigned portBASE_TYPE uxPriority,

xTaskHandle *pvCreatedTask

);

创建新的任务并添加到任务队列中，准备运行

Parameters:

返回: pdPASS 是如果任务成功创建并且添加到就绪列中，另外错误代码在

projdefs. H 文件定义

2. vTaskDelete

task. h

void vTaskDelete( xTaskHandle pxTask );

INCLUDE_vTaskDelete 必须定义为 1，这个函数才能可用。查看配置部分获得

更多信息。

从 RTOS 实时内核管理中移除任务。要删除的任务将从就绪，封锁，挂起，事

二、任务控制

3. vTaskDelay

task. h

void vTaskDelay( portTickType xTicksToDelay );