uC/OS-II (Structure) - ê²½í¬ëíêµ

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Kernel Structure (Cont’d) • Task Control Block typedef struct os_tcb { OS_STK *OSTCBStkPtr; /* Pointer to current top of stack */ #if OS_TASK_CREATE_EXT_EN > 0 void *OSTCBExtPtr; /* Pointer to user definable data for TCB */ OS_STK *OSTCBStkBottom; /* Pointer to bottom of stack */ INT32U OSTCBStkSize; /* Size of task stack (in number of stack) */ INT16U OSTCBOpt; /* Task options as passed by OSTaskCreateExt() */ INT16U OSTCBId; /* Task ID (0..65535) */ #endif struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */ struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */ #if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) || (OS_SEM_EN > 0) || (OS_MUTEX_EN > 0) OS_EVENT *OSTCBEventPtr; /* Pointer to event control block */ #endif #if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) void *OSTCBMsg; /* Message received from OSMboxPost() or OSQPost() #endif Embedded System Lab. II 13
Kernel Structure (Cont’d) • Task Control Block #if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0) #if OS_TASK_DEL_EN > 0 OS_FLAG_NODE *OSTCBFlagNode; /* Pointer to event flag node */ #endif OS_FLAGS OSTCBFlagsRdy; /* Event flags that made task ready to run */ #endif INT16U OSTCBDly; /* Nbr ticks to delay task or, timeout waiting for event INT8U OSTCBStat; /* Task status */ INT8U OSTCBPrio; /* Task priority (0 == highest, 63 == lowest)*/ INT8U OSTCBX; /* Bit position in group corresponding to task priority (0..7) */ INT8U OSTCBY; /* Index into ready table corresponding to task priority */ INT8U OSTCBBitX; /*Bit mask to access bit position in ready table */ INT8U OSTCBBitY; /*Bit mask to access bit position in ready group */ #if OS_TASK_DEL_EN > 0 BOOLEAN OSTCBDelReq; /* Indicates whether a task needs to delete */ #endif } OS_TCB; Embedded System Lab. II 14
Page 1 and 2: MicroC/OS /OS-II Structure Embed
Page 3 and 4: Introduction Embedded System Lab. I
Page 5 and 6: Introduction (Cont’d) • MicroC/
Page 7 and 8: Kernel Structure Embedded System La
Page 9 and 10: Kernel Structure (Cont’d) OS_EN
Page 11 and 12: Kernel Structure (Cont’d) • Tas
Page 13: Kernel Structure (Cont’d) • Tas
Page 17 and 18: Kernel Structure (Cont’d) • Rea
Page 19 and 20: Kernel Structure (Cont’d) •
Page 21 and 22: Kernel Structure (Cont’d) • Tas
Page 23 and 24: Kernel Structure (Cont’d) Task
Page 25 and 26: Kernel Structure (Cont’d) • Sch
Page 27 and 28: Kernel Structure (Cont’d) • Ta
Page 29 and 30: Kernel Structure (Cont’d) • Ta
Page 31 and 32: Kernel Structure (Cont’d) • Mic
Page 33 and 34: Kernel Structure (Cont’d) • Clo
Page 39 and 40: Task Management Embedded System Lab
Page 41 and 42: Task Management (Cont’d) • Task
Page 47 and 48: Task Management (Cont’d) • Stac
Page 55 and 56: Time Management Embedded System Lab
Page 57 and 58: Time Management (Cont’d) • Task
Page 59 and 60: Time Management (Cont’d) • Task
Page 61 and 62: Time Management (Cont’d) • /
Page 63 and 64: Event Control Block • Event Contr
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Event Control Block (Cont’d) •
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Semaphore Management Embedded Syste
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Semaphore Management (Cont’d) •
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Mutual Exclusive Semaphore Embedded
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Event Flags Management Embedded Sys
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Event Flags Management (Cont’d)
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Event Flags Management (Cont’d)
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Message Mailbox Embedded System Lab
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Message Mailbox Management (Cont’
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Message Queue Mailbox Embedded Syst
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Message Queue Management (Cont’d)
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Memory Management • Memory Manage
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Memory Queue Management (Cont’d)
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MicroC/OS /OS-II Porting • Portin
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MicroC/OS /OS-II Porting (Cont’d)
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