Design And Application Of Stereoscopic Image Hardware Platform Based On Davinci

With the development of technology, digital video has changed people's life, and the digital video applications have become increasingly widespread. At the same time, the requirements for digital video have become increasingly high. People no longer satisfy with the conventional planar broadcast system. They hope the reappearance of the three-dimensional features of the nature.This paper studies the TI's new Davinci technology, designing and realizing the three-dimensional images broadcast hardware platform based on Davinci technology. The content of this paper mainly includes the system hardware structure, the U-boot loader structure and the system debugging development.In this system, the three-dimensional image compression algorithm needs for strong digital signal processing capabilities. The system also needs to achieve a number of complex control functions. So single-core processor can hardly meet the requirements. Then if we use multiple processors to work together, it will increase the system cost, the complexity and the difficulties to coordinate between multiple processors. TI's new dual-core processor TMS320DM6446 integrates an ARM core and a DSP C64x+TM core in one chip. It also integrates the video processing subsystem, and many other peripheral modules on the chip. This feature not only improves the dual-core processor integration synergies operational efficiency, but also effectively reduces system circuit complexity and the cost. It is an ideal choice as the main system processor.The hardware platform is designed by module to shorten the design cycle. The system design mainly includes the system architecture design, chip selection, video input and output interface design, external storage circuit design, ethernet interface design, USB interface design, and the other modules in the system. The functions and features of the modules were described in detail. MontaVista Linux 2.6.10 and the u-boot-1.1.3, which have already realized the supports for the Davinci, were selected as the operating system and boot loader respectively. Some software amendments need to be done according to the system hardware structure.System hardware debugging is the guarantee to the realization. Also, it is an important task in the paper. The paper detailedly introduced the fully hardware-based debugging methods and the hardware debugging methods requiring software testing, taking the example of the power management module debugging and the memory module debugging representatively.The hardware design and testing of the system has been completed. The migration of the boot loader and the Linux operating system has been completed, too. Some related subsidiary functions are drawing to a close.