Design Project Of Pmp Based On Spca536 Of SUNPLUS

The portable multimedia player(PMP) is a hot topic that is discussed mostly. PMP player has many merits, it is able to play high_quality video and audio files, it is can also browse photographs and be used as mobile hard drive or digital bank. Many products also have many new and applied functions.PMP will mostly abey the developing routin like portable digital audio player and personal video recorder. We can see the striking speed of cellphone the integrate video and DV function, but many problems such as dimension(screen size), cost (hard disk and bigger LCD screen) and the time that battery can surpply will make people need a independent PMP device.China begin it's PMP development in 2005. Excpet some old digital consume production compay, more manufacturers, agents and merchants who are eager for new productions begin to rush into the PMP market. They also want to make money through the PMP, which is the hot project in the marker of china and make some new brands of digital products. Anyway, the PMP maket of china is bursting with the involving of numerous manufacturers.Nowadays, more than ten semiconductors suppliers issue PMP processor and solution project. And after the introduce of the developing of PMP, this article discuss the PMP resolution which use one kind of video decorder chip named SPCA536 that is producede by Sunplus.There are five parts of this article. The first chapter raise the source of this problem, the background and the purpose of this research. The second chapter is the whole scheme of the system, including the function and the feature of the CODEC. The third chapter is the hardware designing, including introduction of interface, how to control the MCU, peripheral device, RISC engine, MPEG/JEPG engine, controlling of DRAM and the circuit diagram of each module. The fourth chapter is the software designing, including software frame, we still particularly discussed the measure that transplante the UCOS-Ⅱand MICROWINDOWS. at last we give some pseudocodes of some major modules. The last chapter is the summarize of this article, including the experience and the expectation of the further work. Market can prove that this kind of solution support a lot of format of audio, have high stability, operation is convenient, power consumption is limited, and the price is low, this solution fully satisfied the demand of the market, and achieve the expected design purpose.