The Software Design Of Video Conference Based On DaVinci HD

The design and implementation of this project is based on DaVinci HD processor. This system uses GNU/Linux operating system. This paper describes the design of system boot loader and system driver software.The design of this project contains several sections. The first part describes the context of this project, the development of video conferencing system, and the tasks of this project.The second part depicts the structure and technique of video conferencing system, then the hardware system design, DSP architecture and the software system architecture base on DaVinci HD.The third part focuses on system boot. It contains I2C and PCI boot mode.The forth part analyzes the design of system driver software. Firstly, discusses about video process drivers in Linux kernel. Following, discusses about the boot of DSP and HD-VICP. Then, discusses about how the main processor communicates with DaVinci HD system through PCI bus. At last, it focuses on the interacting activity between ARM core and the DSP core.The fifth part focuses on the test of boot loader and the system driver software.The last part summarizes the work which has been done in this design, and the expectation of the system improvement and the development direction.