Design And Development Of Portable Digital Assistants

This thesis is of "Portable Digital Assistant" (Project No.021105805), one of the most important scientific research projects in Science and Technique Plans of Zhejiang Province.The Portable Digital Assistant is a consumer electronics, which can store the data in the memory cards of digital products without computer around, and also be used as a large high-speed portable USB hard disk. This product proposes a good solution to the small capacity and high-cost of the memory cards.Basing on the basic principles of Embedded System design, this thesis describes the design and development of Portable Digital Assistant, which mainly involves four aspects: ARM processor, USB communication, Mass Storage Device and Power Management.