摘要
随着数字信号处理速度的提高，串口、并口已不能满足主机与嵌入式设备之阍的高速数据传输要求．设计了一种采用具有东南大学自主知识产权ARM9的SEP5010芯片硬件平台的USB系统功能，简单分析USB的驱动架构并在应用层中提出了新的传输协议，提出了一种对平台中的USB模块进行高性能读写的设计方案，使得USB模块达到了702KB／s的读写速度。同时此测试方案的不依赖于底层硬件，可以在适用于各种类型的硬件平台。
With the increase in the speed of digital signal processor,serial and parallel ports can＇t meet the demand of high-speed data transmission between computer and embeddeddevice. A USB SYSTEM based on ARM9 SEP5010 chip hardware platform which has proprietary intellectual property rights of Southeast University. It simply analyze architecture of usb driver and put forward new transport protocol in the application layer, a high performance read and write design proposal on bias of usb module is advanced.the read and write rate of USB module can get 702KB/s consequently. At the same time, this testing scenarios don＇t depend on bottom hardware,so it can apply variety hardwareplatform.
作者
汪伟
王昊
张伟伟
WANG Wei, WANG Hao, ZHANG Wei-wei （National ASIC System Engineering Center, Southeast University ,Nanjing 210096, China）
出处
《电脑知识与技术》
2009年第7期5306-5307,5310,共3页
Computer Knowledge and Technology
