摘要： 由于USB总线的诸多优点,传统的低速外围设备正越来越多地朝着USB总线的方向发展。设计一种低成本的USB协议转换器不仅可以保护大量已有的成熟设计,而且可以在一定程度上适应计算机的快速更新换代。文章介绍了一个通用的USB1.1协议转换方案, 并以PS/2-USB的协议转换为例,给出了一个基于CY7C63001的软硬件设计参考。
关键词:
通用串行总线,
协议转换器,
固件
Abstract: USB has become popular due to its high speed, plug and play feature and the capability to avoid resource conflict. An embedded converter from other low speed bus to USB is very interesting, since it would allow legacy peripheral devices to experience USB advantages without major changes. The paper presents a universal USB1.1 protocol converting scheme, and an example of PS/2-USB converter is also given.
中图分类号:
杨章顺,冉立新. 低成本USB协议转换器的设计与实现[J]. , 2004, 30(18): 183-.
YANG Zhangshun, RAN Lixin. Design and Realization of Low Cost USB Protocol Converter[J]. , 2004, 30(18): 183-.