Design And Implementation Of Embedded Multimedia Development Platform

With the development of related technologies, embedded system becomes more and more powerful. Many conventional desktop multimedia applications are gradually migrated to embedded system. Embedded multimedia has become one of the main application fields of embedded system. While developing products of this field, powerful development platform plays a key role. So it is very necessary to design an embedded multimedia development platform with high performance and rich peripheral interfaces.The thesis designs an embedded multimedia development platform based on PXA270 processor. The interfaces of this platform include ethernet, AC '97, touch panel, CF/PCMCIA, USB Host/Client and IDE. Then it migrates Windows CE operating system to the hardware platform and implements a TCPMP player which supports AVS video format. In view of the key technology problems meted in platform design, the thesis discusses the development of three parts: the hardware platform which includes core system and peripheral circuits, the board support package which includes bootloader and USB debugging system, and the TCPMP player.The characteristics and innovations in this thesis are as follows:(1) implement the IDE ATA and CF/PCMCIA interfaces using CF controller and CPLD, enrich the peripheral interfaces of the development platform.(2) add multiboot and usb downloading functions to bootloader, add RNDIS KITL function to Windows CE KITL.(3) implement a TCPMP player which supports AVS video format based on the hardware and software platform.