Abstract:Along with the development of science and technology, the embedded terminal products with digital audio function is widely used in our daily life, and the associated digital audio compression technologies are also highly developed, MP3 is the most popular one in various digital audio compression technologies according it’s excellent performance. Now, with MP3 function have became the trends of the embedded terminal products. In this article, we mainly discussed how to realize the MP3 function in the embedded terminal products.
In this article, the main work is to realize the MP3 function on the AT89C51SND1C of the Atmel Company. This chip is according to the kernel of C51, it’s convenient to write and debug the code, and chip has MP3 hardware decoding unit and USB control unit, so hardware design become easy. The whole system carry on MP3 document with NAND FLASH, use USB to exchange document with USB HOST and URAT to communicate with personal computer. More details to realize the hardware and software methods in this article are introduced.
Key Words:MP3 USB Communication AT89C51SND1C WM8759