CooCox CoOS User's Guide

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Example usage: #include "CCRTOS.h" void EXTI0_IRQHandler(void) { CoEnterISR(); // Enter ISR … /* Process interrupt here */ … CoExitISR(); // Exit ISR } Note: 1) When the system API functions are called in the ISR, you need to start a task scheduling by calling CoExitISR(). 2) When the system exits the interrupts, decrease the interrupt nesting counter- OSIntNesting by one. When OSIntNesting reaches 0, start task scheduling. 3) CoExitISR() and CoEnterISR() must be used in pairs. 6.1.5 CoSchedLock() Function Prototype: void CoSchedLock(void); Descriptions: Lock the scheduler. Parameters: None Returns: None Example usage: #include "CCRTOS.c" void Task0 (void *pdata) { ..... CoSchedLock(); ….. /* Process critical resources here */ ….. CoSchedUnlock(); ..... } Note: 1) Increase OSSchedLock by one. When the task scheduler is locked, the system ensure that the current task can’t be preempted by any other 44
tasks so as to protect the critical resources. 2) CoSchedUnlock() and CoSchedUnlock() must be used in pairs. 6.1.6 CoSchedUnlock() Function Prototype: void CoSchedUnlock(void); Descriptions: Unlock the scheduler. Parameters: None Returns: None Example usage: #include "CCRTOS.c" void Task0 (void *pdata) { ..... CoSchedLock(); ….. /* Process critical resources here */ ….. CoSchedUnlock(); ..... } Note: 1) Decrease OSSchedLock by one. When it reaches 0, start task scheduling. 2) CoSchedUnlock() and CoSchedUnlock() must be used in pairs. 6.1.7 CoGetOSVersion() Function Prototype: OS_VER CoGetOSVersion(void); Descriptions: Obtain CooCox CoOS’s version. Parameters: None Returns: CoOS’s version 45
Page 1 and 2: CooCox CoOS User's Guide Revision 1
Page 3 and 4: 1 OverView 1.1 About CooCox CoOS Co
Page 5 and 6: 1.2 CooCox CoOS getting started Thi
Page 7 and 8: 1.2.3 Write application code Open '
Page 9 and 10: void taskB (void* pdata) { for (;;)
Page 11 and 12: 2 Task Management 2.1 Task During O
Page 13 and 14: TASK_WAITTING CoDelTask() Set event
Page 15 and 16: stkPtr: prio: state: taskID: A poin
Page 17 and 18: 2.4 Task Ready List CooCox CoOS lin
Page 19 and 20: Code 4 Task with a higher priority
Page 21 and 22: 2.7 Interrupts In CooCox CoOS, the
Page 23 and 24: Code 1 System tick interrupt handli
Page 25 and 26: 3.3 Software Timer Software timer i
Page 27 and 28: 4 Memory Management 4.1 Static Memo
Page 29 and 30: Assigned memory block list 50 100 2
Page 31 and 32: while allocate the memory. To all t
Page 33 and 34: 4.3 Stack Overflow Check Stack Over
Page 35 and 36: Code 2 The use of the semaphore voi
Page 37 and 38: Code 3 The use of the mutex section
Page 39 and 40: Code5 Wait for multiple flags void
Page 41 and 42: You can create a mailbox by calling
Page 43 and 44: 6 API Reference 6.1 System Manageme
Page 45: 6.1.3 CoEnterISR() Function Prototy
Page 49 and 50: 6.2 Task Management 6.2.1 CoCreateT
Page 51 and 52: Function Prototype: OS_TID CoCreate
Page 53 and 54: void CoExitTask(void); Description:
Page 55 and 56: #include "CCRTOS.h" void TaskN (voi
Page 57 and 58: #include "CCRTOS.h" void TaskN (voi
Page 59 and 60: Returns: E_INVALID_ID, E_OK, Exampl
Page 61 and 62: Example Usage: #include "CCRTOS.h"
Page 63 and 64: Description: Delay a task for a spe
Page 65 and 66: Example Usage: #include "CCRTOS.h"
Page 67 and 68: The ID of the specified timer Retur
Page 69 and 70: Returns: E_OK, Get the current coun
Page 71 and 72: 6.5 Memory Management 6.5.1 CoKmall
Page 73 and 74: Description: Create a memory partit
Page 75 and 76: 6.5.5 CoGetMemoryBuffer() Function
Page 77 and 78: Example usage: #include "CCRTOS.h"
Page 79 and 80: 6.6 Mutex Section 6.6.1 CoCreateMut
Page 81 and 82: [in] muterID the designated mutex s
Page 83 and 84: Note: None 6.7.2 CoDelSem() Functio
Page 85 and 86: Example usage: Note: #include "CCRT
Page 89 and 90: 6.7.6 isr_PostSem() Function Protot
Page 91 and 92: 6.8.2 CoDelMbox() Function Prototyp
Page 97 and 98:
Example usage: #include "CCRTOS.h"
Page 99 and 100:
6.9 Message Queues 6.9.1 CoCreateQu
Page 101 and 102:
E_INVALID_PARAMETER, invalid parame
Page 103 and 104:
6.9.4 CoPendQueueMail() Function Pr
Page 105 and 106:
Note: 1)This function runs a task s
Page 107 and 108:
Note: If the number of the message
Page 109 and 110:
6.10 Flags 6.10.1 CoCreateFlag() Fu
Page 111 and 112:
E_OK, Example usage: Delete success
Page 113 and 114:
OPT_WAIT_ALL, Wait for all the flag
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Returns: E_INVALID_ID, E_OK, Exampl
Page 121 and 122:
6.11 System Utilities 6.11.1 CoTick
Page 123 and 124:
Returns: E_INVALID_PARAMETER, E_OK,
Page 125:
Returns: None Example usage: void C
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CooCox CoOS User's Guide

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