Design And Realization Of MP3 Decoder Based On OMAP1510

MPEG-1 LAYER3 describes the 3rd Layers digital audio algorithms of the MPEG organization, and it has high compression and excellent audio quality. The music that compressed in this audio format has been very popular on the Internet. So a new consumer electronic product-portable mp3 player has huge market value now. But most of the mp3 decoder is of defined-used Asics there is lack of flexibility and upgrade.On the basis of above background, we advance that the designing and realizing of OMAP1510 Hazed MP3 Decode System. The goal of the thesis was to establish a hardware system which use a popular digital signal processor to decode the mp3 music. The codec technology of the MPEG series ISO/IEC standards are outlined in the thesis. The principle and structure of the decoding system are described and analyzed. First we introduce the hardware system of MP3 decoder, The system uses a OMAP1510 as a key device with a complex programmable logic device EPM7032 and a large memory, and use USB or Ethernet to communicate with the PC, the realize the real time decoding by programming DSP software. The decoder system can download data from PC, store the MP3 data in the flash memory and output the music from the CODEC. Also we can decode other audio format by changing the OMAP1510 software on this system.