Advanced Digital Photo Frame Haraware System Design

With the development of multimedia technology and embedded-systemapplications, the digital photo frame has become increasingly diverse, and functionsbecomes more and more complex. Because of the flourish in the digital photo framemarket, customer put forward new requirements for the design of digital photo frame,especially in the aspects of convenience, aesthetics and fashion. With the emergence andmaturity of the variety of multimedia processing chip and program also provides awealth of resources to the design of digital photo frame.Based on this point of view, this design put forward a new scheme. The paperdescribes in detail the hardware system design of advanced digital photo frame andexplains about some of the software design and applications, then, explains theembedded operating system.This design uses ARK1630multimedia processing chip as the core, makes use ofARK7113video transcoding chip, and does the ITU definition digital TV signal inputand TV output. Dual power system power design, to ensure the stability of the system.There are four optional system BOOT, thay are:NandFlash、EEPROM、USP、SPI. Sosystem can work well regardless of the face of what the environment is. This schemedesign a variety of storage systems, The entire design uses system uC/OS-II operatingsystem, realized memory of SD card, read, write and storage files which used FAT32format. The design of USB host/slave mode can manage the files easily. In the LCDdisplay function, hardware circuit designed two TFT interfaces circuit which compatibleanalog and digital screen. In the data-sharing, FM audio transmitter chip to realize thesharing of audio data. Hardware circuit for Bluetooth communication interface canfacilitate the realization of the Bluetooth communication.This dissertation pays attention on the details of circuit and system design, at lastdiscusses some problems which have been met in the program. Finally, completed thePCB circuit design and debugging. Then for each module, as well as the whole system,paper done hardware and software tests.