Multicore DSP

7Real‐time operating system: TI‐RTOS

CHAPTER MENU

1. 7.1 Introduction
2. 7.2 TI‐RTOS
3. 7.3 Real‐time scheduling
   1. 7.3.1 Hardware interrupts (Hwis)
      1. 7.3.1.1 Setting an Hwi
      2. 7.3.1.2 Hwi hook functions
   2. 7.3.2 Software interrupts (Swis), including clock, periodic or single‐shot functions
   3. 7.3.3 Tasks
      1. 7.3.3.1 Task hook functions
   4. 7.3.4 Idle functions
   5. 7.3.5 Clock functions
   6. 7.3.6 Timer functions
   7. 7.3.7 Synchronisation
      1. 7.3.7.1 Semaphores
      2. 7.3.7.2 Semaphore_pend
      3. 7.3.7.3 Semaphore_post
      4. 7.3.7.4 How to configure the semaphores
   8. 7.3.8 Events
   9. 7.3.9 Summary
4. 7.4 Dynamic memory management
   1. 7.4.1 Stack allocation
   2. 7.4.2 Heap allocation
   3. 7.4.3 Heap implementation
      1. 7.4.3.1 HeapMin implementation
      2. 7.4.3.2 HeapMem implementation
      3. 7.4.3.3 HeapBuf implementation
      4. 7.4.3.4 HeapMultiBuf implementation
5. 7.5 Laboratory experiments
   1. 7.5.1 Lab 1: Manual setup of the clock (part 1)
   2. 7.5.2 Lab 2: Manual setup of the clock (part 2)
   3. 7.5.3 Lab 3: Using Hwis, Swis, tasks and clocks
   4. 7.5.4 Lab 4: Using events
   5. 7.5.5 Lab 5: Using the heaps
6. 7.6 Conclusion
7. References
   1. References (further reading)

7.1 Introduction

A computer system or an embedded system is composed of hardware and software elements. The software part can play an important role and may include an operating system (OS) that provides low‐level services for applications to run efficiently. These low‐level services can be used for:

1. Performing multitasking operations (and therefore reducing application complexities)
2. Initialising I/Os
3. Management of memory
4. Handling a file ...