Research On Internet Radio And Projection Functions Of Multimedia Player Based On Arm

With the rapid development of related technology, embedded products succeed in the market place, must have the following characteristics: Low cost, Small size, Low power consumption, More powerful features. This paper aims to study how to add two features - Embedded Internet Radio and Micro-projection for the Portable Multimedia Player to achieve the increase in added value of products.Now, the embedded Internet Radio is transforming from an independent product of single function to an integrated function of consumer electronic product. Through the Internet, users can listen to the worldwide broadcasts. Compared with traditional radio, Internet Radio has the features of large amount of broadcast, great variety, clearer broadcast and so on.Micro-projection technology is more and more popular in recent years, but because of the low brightness, high cost and large volume, the market has been caught in the dilemma. With advances in technology, the current brightness, volume and power have reached the level of practical application, and its cost is also basically reasonable. As an additional feature of Portable Multimedia Player, Micro-projection can satisfy the growing demand of large screen and high definition video, its application prospects must be very good.In this paper, taking ARM9 microprocessor as the core, and establishingμC/OS-II embedded real time operation system, studing the implementation of Internet Radio and Micro-projection functions, the contents include: the transplant ofμC/OS-II operation system, the transplant of LwIP Stack onμC/OS-II, the implementation of Internet Radio and Micro-projection functions.The research of this paper has some practical value, although increasing the cost, it also increase the value of the product, and more important, it increase the core competitiveness of product.