Hardware And Device Driver Design In Embeded Linux IP Audio Player System

This paper mainly introduce design and implementation of a audio player system based on embedded technology and network technology.The system uses a frequency of 400 MHz chip S3C2440A as the ARM9 embedded microprocessor, combined with modern interface technology, using LINUX as the operating system for embedded software platform and MINGUI as graphical interface development.In this system ,the audio players, network transmission and control, a variety of storage, color LCD display and keyboard input, and other functions is implemented. The system is mainly used for sports venues audio player control system, radio broadcast system and public places in the audio system.Embedded linux IP players syetem design is comprise of embedded hardware and embedded software design. This paper detailed introduction of the design process. Hardware design is comprised of S3C2440A core board's Schematic and six high-speed PCB design drawing;the circuit of TFT LCD, USB, SD Card, 10 M/100M network, IDE hard, serial, IIS, IIC, and so on.The paper offer the various external circuit schematics. Embedded in the embedded system software design on the basis of hardware design, including the transplantation Bootloader VIVI, embedded linux kernel of the crop and transplantation and making of embedded linux the root file system.The design and debug of Device drivers is completed. the system hardware and software features and stability of the test of the player is completed.The system has a special two-way audio system, a variety of storage options, rich interface equipment, network transmission control, hardware easy to expand, sound effects, and beautiful and friendly graphical user interface, stable and reliable operation, and other characteristics. This player system applicated in the audio players has a good prospect, has a good practical value and economic benefits.