Based On The Iis Bus Embedded Digital Audio Systems

The embedded system is a specific computer system that focuses on the application on the base of computer technology including both software and hardware, and is qualified with the rigid requirement of application system about function, reliability, cost, size and power consumption. With the swift development of the technology of the computer, the embedded system becomes one of the focuses of IT industry. The enormous market of embedded system has appeared. At the same time, the large amount of embedded application puts forward high demand to the realization of the development based of embedded system. The traditional development way becomes the bottleneck already.In recent years, ARM has already established the leading position in market and technology on the embedded application because of its outstanding performance. uClinux is a kind of operating system derived from Linux, and supports many embedded processors. This paper has done deep research in embedded device application and development based on embedded OS. The focus of is the driver development of embedded device.This paper consists of three parts. After introducing the software and hardware platform of the project, this paper carries on researching in porting bootloader and embedded OS, especially how to port Blob and uClinux to platform S3CEV40. Then, this paper discusses how to design and realize audio driver for the embedded hardware, and install it into uClinux kernel to control platform S3CEV40. Finally, this paper explains how to control the device with its driver by uClinux.