IAR PowerPac RTOS User Guide

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OS_Delay()30OS_DeleteCSema()59OS_DeleteMB()70OS_DeleteTimer()41, 47OS_DI()104OS_EI()104OS_EnterInterrupt()102–103OS_EnterNestableInterrupt()105OS_EnterRegion()107OS_EVENT_Create()83OS_EVENT_Delete()87OS_EVENT_Get()87OS_EVENT_Pulse()87OS_EVENT_Reset()86OS_EVENT_Set()85OS_EVENT_WaitTimed()84OS_EVENT_Wait()84OS_free()89OS_FSYS111OS_GetCSemaValue()58OS_GetEventsOccurred()80OS_GetMailCond()67OS_GetMailCond1()67OS_GetMailTimed()68OS_GetMail()66OS_GetMail1()66OS_GetMessageCnt()69OS_GetpCurrentTask()35OS_GetpCurrentTimer()42, 48OS_GetPriority()31OS_GetResourceOwner54OS_GetSemaValue()54OS_GetStackSpace()98OS_GetTaskID()34OS_GetTimerPeriod()41, 47OS_GetTimerStatus()42, 48OS_GetTimerValue()42, 47OS_GetTime()114OS_GetTime_Cycles()111OS_GetTime32()114OS_Idle()111OS_IncDI()103OS_InitHW()111OS_ISR_Tick()111OS_IsTask()34OS_LeaveInterruptNoSwitch()103OS_LeaveInterrupt()102–103OS_LeaveNestableInterruptNoSwitch()106OS_LeaveNestableInterrupt()106OS_LeaveRegion()107OS_malloc()89OS_MEMF_AllocTimed()92OS_MEMF_Alloc()92OS_MEMF_Create()91OS_MEMF_Delete()92OS_MEMF_FreeBlock()94OS_MEMF_GetBlockSize()94OS_MEMF_GetMaxUsed()95OS_MEMF_GetNumBlocks()94OS_MEMF_GetNumFreeBlocks()94OS_MEMF_IsInPool()95OS_MEMF_Release()93OS_MEMF_Request()93OS_PutMailCond()65OS_PutMailCond1()65OS_PutMailFrontCond()66OS_PutMailFrontCond1()66OS_PutMailFront()65OS_PutMailFront1()65OS_PutMail()64OS_PutMail1()64OS_Q_Clear()75OS_Q_Create()71OS_Q_GetMessageCnt()75OS_Q_GetPtrCond()73OS_Q_GetPtrTimed()74OS_Q_GetPtr()72OS_Q_Purge()74OS_Q_Put()72OS_realloc()89OS_Request()53OS_RestoreI()104OS_Resume()32OS_RetriggerTimer()40, 46OS_SetCSemaValue()58OS_SetPriority()31OS_SetTimerPeriod()41, 46OS_SetTimeSlice()32OS_SignalCSema()56OS_SignalEvent()79OS_StartTimer()39, 45OS_Start()21OS_StopTimer()40OS_Suspend()32OS_Terminate()33OS_Time109OS_TimeDex109OS_TimingEnd()116OS_TimingStart()116OS_Timing_GetCycles()116OS_Timing_Getus()116OS_Unuse()52OS_USE()51OS_WaitCSemaTimed()57OS_WaitCSema()57OS_WaitEventTimed()78OS_WaitEvent()77OS_WaitMail()69146IAR PowerPac RTOSfor ARM CoresPPRTOS-2
IndexOS_WaitSingleEventTimed(). . . . . . . . . . . . . . . . . . . . . . . . . . . 79OS_WaitSingleEvent() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78OS_WakeTask() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Ppart number, of this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Preemptive multitasking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Priority inversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Profiling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22publication date, of this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . 2QQueues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 71–75Rreading guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Reentrance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133registered trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Release version, of embOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Resource semaphores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Round-robin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15–16RTOSInit.c configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111Runtime errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123SScheduler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Semaphores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Counting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55–59Resource. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49–54Software timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37–43Software timers API overview. . . . . . . . . . . . . . . . . . . . . . . . . . 38Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 97–98Stack pointer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Stacksswitching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Superloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Switching stacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Syntax, conventions used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3System variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109TTask communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Task control block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 25Task routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25–35Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16global variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16multitasking systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13single-task systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18superloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17TCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Tick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112Time variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109Timer-interrupt interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112Time-related routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113–118trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2VVector table file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111version, IAR Embedded Workbench . . . . . . . . . . . . . . . . . . . . . 2PPRTOS-2147
Page 1 and 2:
IAR PowerPac RTOSUser GuidePPRTOS-2
Page 3 and 4:
PrefaceWelcome to the IAR PowerPac
Page 5 and 6:
ContentsPreface ...................
Page 7 and 8:
ContentsOS_WaitCSema() ............
Page 9 and 10:
ContentsOS_LeaveInterrupt() .......
Page 11 and 12:
Introduction to IAR PowerPacRTOSWha
Page 13 and 14:
Basic conceptsTasksIn this context,
Page 15 and 16:
Basic conceptsPREEMPTIVES MULTITASK
Page 17 and 18:
Basic conceptsMAILBOXES AND QUEUESA
Page 19 and 20:
Basic conceptsThe active task may b
Page 21 and 22:
Basic conceptsThe flowchart below i
Page 23 and 24:
Basic conceptsLIST OF LIBRARIESIn y
Page 25 and 26:
Task routinesIntroductionA task tha
Page 27 and 28:
Task routinesOS_CREATETASK() can be
Page 29 and 30:
Task routinesExampleThe following e
Page 31 and 32:
Task routinesExampleint sec,min;voi
Page 33 and 34:
Task routinesAdditional Information
Page 35 and 36:
Task routinesReturn valueOS_TASKID:
Page 37 and 38:
Software timersSoftware timerA soft
Page 39 and 40:
Software timers#define OS_CREATETIM
Page 41 and 42:
Software timersOS_SetTimerPeriod()D
Page 43 and 44:
Software timersAdditional Informati
Page 45 and 46:
Software timersAdditional Informati
Page 47 and 48:
Software timersExampleOS_TIMER TIME
Page 49 and 50:
Resource semaphoresIntroductionReso
Page 51 and 52:
Resource semaphoresResource semapho
Page 53 and 54:
Resource semaphoresOS_Request()Desc
Page 55 and 56:
Counting SemaphoresIntroductionCoun
Page 57 and 58:
Counting SemaphoresPrototypevoid OS
Page 59 and 60:
Counting SemaphoresReturn value0: I
Page 61 and 62:
MailboxesWhy mailboxes?In the prece
Page 63 and 64:
MailboxesMailboxes API function ove
Page 65 and 66:
MailboxesExampleSingle-byte mailbox
Page 67 and 68:
MailboxesPrototypevoid OS_GetMail (
Page 69 and 70:
MailboxesOS_WaitMail()DescriptionWa
Page 71 and 72:
QueuesWhy queues?In the preceding c
Page 73 and 74:
QueuesReturn valueThe size of the r
Page 75 and 76:
QueuesExamplestatic void MemoryTask
Page 77 and 78:
Task eventsIntroductionTask events
Page 79 and 80:
Task eventsExampleOS_WaitEventTimed
Page 81 and 82:
Task eventsPrototypechar OS_ClearEv
Page 83 and 84:
Event objectsIntroductionEvent obje
Page 85 and 86:
Event objectsExampleif (OS_EVENT_Wa
Page 87 and 88:
Event objectsExampleOS_EVENT_Reset(
Page 89 and 90:
Heap type memory managementANSI C o
Page 91 and 92:
Fixed block size memory poolsIntrod
Page 93 and 94:
Fixed block size memory poolsProtot
Page 95 and 96: Fixed block size memory poolsProtot
Page 97 and 98: StacksIntroductionThe stack is the
Page 99 and 100: InterruptsIntroductionIn this chapt
Page 101 and 102: InterruptsRules for interrupt handl
Page 103 and 104: InterruptsOS_LeaveInterruptNoSwitch
Page 105 and 106: InterruptsNesting interrupt routine
Page 107 and 108: Critical RegionsIntroductionCritica
Page 109 and 110: System variablesIntroductionThe sys
Page 111 and 112: Configuration for your targetsystem
Page 113 and 114: Time measurementIntroductionIAR Pow
Page 115 and 116: Time measurementPrototypeU32 OS_Get
Page 117 and 118: Time measurementPrototypeOS_U32 OS_
Page 119 and 120: RTOS-aware debuggingThis chapter de
Page 121 and 122: RTOS-aware debuggingTimersA softwar
Page 123 and 124: DebuggingRuntime errorsSome error c
Page 125 and 126: DebuggingValue Define Description17
Page 127 and 128: Performance and resource usageThis
Page 129 and 130: Performance and resource usageThe c
Page 131 and 132: Performance and resource usage*/sta
Page 133 and 134: ReentranceAll routines that can be
Page 135 and 136: LimitationsThe following limitation
Page 137 and 138: Source code of kernel and libraryIn
Page 139 and 140: Additional modulesKeyboard manager:
Page 141 and 142: FAQ (frequently asked questions)Q:
Page 143 and 144: GlossaryActive TaskCooperativemulti
Page 145: IndexIndexAAdditional modules . . .
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