Portable Multimedia Player With Storage Expansion

Portable multimedia players (PMP), which is usually known as the MP4 has become a consumer products of a new hot spot after MP3 .The main advantages of PMP is: easy to carry ,can directly broadcast high-quality audio / video files; can also browse images, as well as the use of mobile hard disk; In addition, the PMP is no longer as a pure entertainment products, multimedia player can only be regarded as the product Annex A function, it also is primarily a platform on the increase in its various practical functions such as GPS satellite navigation, games, digital partners, mobile TV, wireless Internet access, and other functions. PMP players need not only be limited to body size, but more importantly is the need for a more efficient compression, higher picture quality video compression technology, and related codec chips.ADSP BF561 is a series of high-performance products of Blackfin family ,for the multimedia and communications in a variety of applications. The device's core by two independent Blackfin Processor component, which will Blackfin Processor-the-art dual-MAC processing engine, simple RISC microprocessor instruction set of advantages, as well as single-instruction multiple data (SIMD) multimedia capabilities combine the formation of a unique instruction set structure. BF561 integrates a common set of digital image processing peripherals for digital image processing and multimedia applications to create a complete system-on-chip solutions.This paper introduces a high-end products based on ADI's Blackfin 561 PMP solutions, and focus on the application of storage expansion. The now sample based on this PMP system scheme ,whose the basic functions of the prototype debugging have been passed.