Design Of Digital Audio Player Based On STM32

In recent years,the speed of informationization in the world has been greatly accelerated,and the digital age has quietly arrived.With the rapid development of electronic computer technology,the upgrading of electronic products in the market tends to be faster,and due to the increase of network bandwidth and the demand for digital entertainment,multimedia And related equipment has developed rapidly in recent years.Consumer electronics products that integrate the advantages of MP3 and have features that MP3 does not have are increasingly favored by consumers.In this article,we designed a multi-function MP3 based on STM 32,such as playing MP3 / WMA / WAV / MIDI audio files,JPEG / JPG / BMP picture browsing,games,alarm clocks,perpetual calendar,e-books,FM radio,color table lamps,Power amplification and other functions.The MP3 player produced by this design mainly consists of audio decoding part,radio part,sound processing part,SD card part,power amplification,power supply part,human-computer interaction,etc.The digital music player is mainly controlled by one master.The chip performs system resource allocation and operation.In terms of device input and output,the combination of liquid crystal display and touch panel is adopted,which greatly enhances the user experience.The difficulty of this system lies in the management of FAT file system,JPEG picture decoding,touch screen control and other parts.This article will focus on these parts...