CooCox CoOS User's Guide

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task code is as followings: void taskA (void* pdata) { /*!< Create a mutex for uart print */ uart_mutex = CoCreateMutex (); if (uart_mutex == E_CREATE_FAIL) { /*!< If failed to create, print message */ printf (" Failed to create Mutex! \n\r"); } /*!< Create two flags to communicate between taskA and taskB */ a_flag = CoCreateFlag (TRUE,0); if (a_flag == E_CREATE_FAIL) { printf (" Failed to create the Flag! \n\r"); } b_flag = CoCreateFlag (TRUE,0); if (b_flag == E_CREATE_FAIL) { printf (" Failed to create the Flag ! \n\r"); } for (;;) { CoWaitForSingleFlag (a_flag,0); CoEnterMutexSection (uart_mutex); printf (" taskA is running \n\r"); CoLeaveMutexSection (uart_mutex); } } taskB: taskB waits for b_flag to be set, print 'taskB is running' after activating,, and then continue to wait for the flag, and the cycle repeats. task code is as followings: 6
void taskB (void* pdata) { for (;;) { CoWaitForSingleFlag (b_flag,0); CoEnterMutexSection (uart_mutex); printf (" taskB is running \n\r"); CoLeaveMutexSection (uart_mutex); } } led: led task controls the changes of led, here we call CoTickDelay() to delay 0.5s to keep led lighting for 0.5s; at the same time led task will set a_flag and b_flag at the right time to activate taskA,taskB. Code is as followings: void led (void* pdata) { unsigned int led_num; for (;;) { led_num = 1
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: 1.2.3 Write application code Open '
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 and 46: 6.1.3 CoEnterISR() Function Prototy
Page 47 and 48: tasks so as to protect the critical
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"
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The ID of the specified timer Retur
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Returns: E_OK, Get the current coun
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6.5 Memory Management 6.5.1 CoKmall
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Description: Create a memory partit
Page 75 and 76:
6.5.5 CoGetMemoryBuffer() Function
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Example usage: #include "CCRTOS.h"
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6.6 Mutex Section 6.6.1 CoCreateMut
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[in] muterID the designated mutex s
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Note: None 6.7.2 CoDelSem() Functio
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Example usage: Note: #include "CCRT
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6.7.6 isr_PostSem() Function Protot
Page 91 and 92:
6.8.2 CoDelMbox() Function Prototyp
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
6.9 Message Queues 6.9.1 CoCreateQu
Page 101 and 102:
E_INVALID_PARAMETER, invalid parame
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6.9.4 CoPendQueueMail() Function Pr
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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
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E_OK, Example usage: Delete success
Page 113 and 114:
OPT_WAIT_ALL, Wait for all the flag
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Page 117 and 118:
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Returns: E_INVALID_ID, E_OK, Exampl
Page 121 and 122:
6.11 System Utilities 6.11.1 CoTick
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Returns: E_INVALID_PARAMETER, E_OK,
Page 125:
Returns: None Example usage: void C
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