摘要
采用自下向上的设计流程,在没有嵌入式操作系统支持的条件下,自主设计和实现了嵌入式USBHost功能.以ISP1362驱动USB海量存储类设备为例,描述了嵌入式USBHost系统的框架结构和底层驱动的设计方法.实验结果表明,遵从海量存储类子协议的USB设备,都能够被系统驱动,而且数据传输速度优于PC机驱动方式.
The functions of embedded USB Host was designed and implemented by using bottom-up without supporting of embedded OS. Taking ISP1362 chip-based USB mass storage class device as an example, the frame structure of USB Host system and the designing method for driver of the bottom were described. The experimental results show that USB devices obeying sub-protocols for mass stor- age class can be driven by the system, and the speed of data transmission driven by the system is faster than that of data transmission driven by PC.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第7期79-81,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
关键词
数据传输
嵌入式系统
海量存储类
data transmission
embedded system
mass storage class
