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ACR89U-A1 Application Programming Interface
Version 1.00
Page 68 of 115
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6.3.3. xTaskGetSchedulerState
This function gets the state of scheduler.
[task.h]
portBASE_TYPE xTaskGetSchedulerState( void );
Returns:
portBASE_TYPE
One of the following constants (defined within task.h):
taskSCHEDULER_NOT_STARTED, taskSCHEDULER_RUNNING,
taskSCHEDULER_SUSPENDED.
6.3.4. uxTaskGetNumberOfTasks
This function gets the number of tasks.
[task.h]
unsigned portBASE_TYPE uxTaskGetNumberOfTasks( void );
Returns:
unsigned portBASE_TYPE
The number of tasks that the real time kernel is currently managing. This includes all
ready, blocked and suspended tasks. A task that has been deleted but not freed by the
idle task will also be included in the count.
- ACR89U-A1 1
- Handheld 1
- Smart Card Reader 1
- Table of Contents 2
- Figures 3
- 1.0. Introduction 4
- Page 5 of 115 5
- 3.2. Data Structures 6
- Page 7 of 115 7
- 3.3. Functions 8
- 3.3.3. SCard_Manager_CardOn 9
- Page 10 of 115 10
- 4.0. Reader API Functions 11
- Page 12 of 115 12
- 4.2. Buzzer API Functions 13
- 4.2.2. Functions 14
- 4.3. Keypad API Functions 15
- 4.3.1.2. KeyInputEnumType 16
- Page 17 of 115 17
- 4.3.2. Functions 18
- 4.3.2.2. Key_Msg_ReceiveKey 19
- 4.3.2.5. Key_Ctrl_ScanLock 20
- Page 21 of 115 21
- 4.4. EEPROM API Functions 22
- 4.4.2.2. EEPROM_Read 23
- 4.5.1. Data Structures 24
- 4.5.2. Functions 24
- 4.5.2.1. EXRTC_Write_Ram 24
- 4.5.2.2. EXRTC_Read_Ram 25
- 4.5.2.3. EXRTC_Write_Time 26
- Page 27 of 115 27
- 4.5.2.5. EXRTC_Read_Time 28
- 4.5.2.6. EXRTC_Write_Date 29
- Page 30 of 115 30
- 4.5.2.8. EXRTC_Read_Date 31
- 4.6. LCD API Functions 32
- Page 33 of 115 33
- 4.6.2.5. LCD_ClearDisplay 34
- 4.6.2.6. LCD_SetContrast 35
- 4.6.2.7. LCD_SetBacklight 35
- 4.6.2.8. LCD_Display_Cursor 36
- 4.6.2.9. LCD_Clear_Cursor 36
- 4.6.2.10. LCD_Display_Page 36
- 4.6.2.12. LCD_DisplayOn 37
- 4.6.2.14. LCD_DisplayHex 38
- 4.6.2.15. LCD_DisplayHexN 39
- 4.6.2.16. LCD_DisplayFloat 39
- 4.6.2.17. LCD_DrawTitleBox 40
- 4.7.1. Data Structures 41
- 4.7.2. Functions 42
- Page 43 of 115 43
- 4.8. RS232 API Functions 44
- Page 45 of 115 45
- 4.8.2. Functions 46
- 4.8.2.1. RS232_Config 46
- 4.8.2.2. RS232_OpenPort 46
- 4.8.2.3. RS232_ClosePort 47
- 4.8.2.5. RS232_Receive 48
- 4.8.2.6. RS232_Send 49
- 4.9.1. Data Structures 50
- Page 51 of 115 51
- 4.9.2. Functions 52
- 4.9.2.3. IO_WriteLEDOutput 53
- 4.9.2.4. IO_ReadLEDOutput 54
- 4.9.2.5. IO_SystemShutdown 55
- 4.9.2.6. IO_SystemSleep 55
- 4.9.2.7. IO_SystemRestart 55
- 5.1. Data Structures 56
- 5.2. Functions 56
- 6.0. FreeRTOS API Functions 57
- Page 58 of 115 58
- 6.1.3. vTaskDelete 59
- 6.2. Task Control 60
- 6.2.2. vTaskDelayUntil 61
- 6.2.3. uxTaskPriorityGet 62
- Page 63 of 115 63
- 6.2.4. vTaskPrioritySet 64
- 6.2.5. vTaskSuspend 65
- 6.2.6. vTaskResume 66
- 6.3. Task Utilities 67
- Page 68 of 115 68
- 6.4. Kernel Control 69
- 6.4.4. vTaskSuspendAll 70
- 6.4.5. xTaskResumeAll 71
- Page 72 of 115 72
- 6.5. Queue Management 73
- Page 74 of 115 74
- 6.5.3. vQueueDelete 75
- 6.5.4. xQueueSend 75
- Page 76 of 115 76
- Page 77 of 115 77
- 6.5.5. xQueueSendToBack 78
- Page 79 of 115 79
- Page 80 of 115 80
- 6.5.6. xQueueSendToToFront 81
- Page 82 of 115 82
- Page 83 of 115 83
- 6.5.7. xQueueReceive 84
- Page 85 of 115 85
- Page 86 of 115 86
- 6.5.8. xQueuePeek 87
- Page 88 of 115 88
- Page 89 of 115 89
- 6.6. Semaphore / Mutexes 90
- Page 91 of 115 91
- Page 92 of 115 92
- Page 93 of 115 93
- Page 94 of 115 94
- 6.6.5. xSemaphoreTake 95
- Page 96 of 115 96
- Page 97 of 115 97
- Page 98 of 115 98
- Page 99 of 115 99
- 6.6.7. xSemaphoreGive 100
- Page 101 of 115 101
- Page 102 of 115 102
- Page 103 of 115 103
- 6.7. Software Timers 104
- Page 105 of 115 105
- Page 106 of 115 106
- Page 107 of 115 107
- 6.7.2. xTimerIsTimerActive 108
- 6.7.3. xTimerStart 109
- 6.7.4. xTimerStop 109
- 6.7.5. xTimerChangePeriod 110
- Page 111 of 115 111
- 6.7.6. xTimerDelete 112
- 6.7.7. xTimerReset 112
- Page 113 of 115 113
- Page 114 of 115 114
- 6.7.8. pvTimerGetTimerID 115
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