Rtos Storage Management Based On The Hdtv Source Decoder Chip Design And Realization

The present high level of silicon integration technology has opened a new era of the integrated circuit design, which has offered an opportunity to make a sub-system or an entire digital system onto a chip. The emergence of system-on-chip (SOC) makes the system more and more complex, and there is a growing consensus on the real-time operating system (RTOS) because it can make the system more usable and reliable and the system design more reusable. Memory is the important resource of embedded system, so the memory management plays a key role in the whole system.In this thesis, we research and implement me memory management methods of RTOS for the HDTV integrated source decoder chip.In Chapter 1, we give an introduction of the basics of operating system and RTOS, then the SOC and the characteristics and design methods of RTOS for SOC are discussedChapter 2 focuses on memory management methods. First we discuss the requests of memory management and several memory management methods. Then we study the memory management methods of RTOS with some cases. At last, we describe the main problems of memory management of RTOS for SOC, and give an introduction of the differences of the memory management methods of common RTOS and the RTOS for SOC.Chapter 3 presents the design and implementation of memory management of RTOS for the HDTV integrated source decoder chip. We first give an analysis of the whole system and its requests for memory management Then we design and implement the memory management strategies of RTOS for this chip, including the paged virtual memory management mechanism without swap, the memory protection, the memory sharing and the static/dynamic memory allocation mechanism.Chapter 4 describes the simulation method of the memory management strategies implemented in the previous chapter, then we analyse the results of the simulation.