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kernel
Real-Time System concepts
2. preemptive kernel
Real-Time System concepts
Priority 1. Introduction
- History
- uC/OS-II의 특징
2. Real-Time System Concepts
- Task
- Task State
- Kernel
- Priority
- Semaphore
- Dead lock
- I
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task” mean?
Often times, the terms “task” and “activity” are used interchangeably in SLA literatures. Skehan, however, defines a task as an activity in which meaning is primary, there is a relationship to the real world, task completion has priority, and where success is assessed in terms of outcom
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priority task is ready, perform a context switch */
5) Restore all CPU registers;
6)Execute a return from interrupt instruction;
μC/OS-II 인터럽트 처리
μC/OS-II에 ISR 시작통보
Void OSIntEnter (void)
{
OS_ENTER_CRITICAL();
OSIntNesting++;
OS_EXIT_CRITICAL();
}
μC/OS-II
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Task와 Multitasking
Ⅰ. Semaphore
Ⅱ. Priority Inversions
Ⅲ. Task Communication
Ⅳ. Task Synchronization
제 2 절 Context Switching
제 3 절 Kernel
Ⅰ. Scheduler
Ⅱ. Non-preemptive Kernel
Ⅲ. Preemptive Kernel
제 4 절 Critical Section과 Mutual Exclusion
Ⅰ. Critical
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Task Properties
1. general
2. Triggers
3. Details
4. Security
5. Priority
◎ 키보드 입력하기
- 키보드 입력을 하는 명령어 특징
◎ hold down key / release key
◎ Mouse Move
◎ Mouse Click
◎ Wait
1. Pause task
2. wait for windows
3. wait for pointer
4. wait for pixel
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