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基于PDIUSBD12的USB通信速率优化
引用本文:易楠,陆宝春,丁日春,王海俊,周宇,李振中. 基于PDIUSBD12的USB通信速率优化[J]. 计算机工程, 2011, 37(3): 233-235. DOI: 10.3969/j.issn.1000-3428.2011.03.082
作者姓名:易楠  陆宝春  丁日春  王海俊  周宇  李振中
作者单位:1. 南京理工大学机械工程学院,南京,210094;光一科技股份有限公司,南京,210007
2. 光一科技股份有限公司,南京,210007;南京市售电侧用电管理工程技术研究中心,南京,210007
基金项目:江苏省"六大人才高峰"行动计划基金
摘    要:针对通用串行总线(USB)开发中通信速率实际值与理论值相差较大的问题,分析USB接口器件PDIUSBD12及USB协议本身的特点,分别从数据交换方式与主机侧驱动等方面对USB通信速率进行优化。介绍利用Flash型FPGA实现适用于LPC2200系列器件外扩存储器总线的直接存储器访问控制器。实验结果表明,USB通信速率的优化可以大幅度提高基于PDIUSBD12的USB数据传输速率。

关 键 词:通用串行总线  通信速率  直接存储器访问

Optimization of USB Communication Rate Based on PDIUSBD12
YI Nan,LU Bao-chun,DING Ri-chun,WANG Hai-jun,ZHOU Yu,LI Zhen-guo. Optimization of USB Communication Rate Based on PDIUSBD12[J]. Computer Engineering, 2011, 37(3): 233-235. DOI: 10.3969/j.issn.1000-3428.2011.03.082
Authors:YI Nan  LU Bao-chun  DING Ri-chun  WANG Hai-jun  ZHOU Yu  LI Zhen-guo
Affiliation:2,3(1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;3.Nanjing Sale-side Electric Power Management Engineering Research Center,Nanjing 210007,China;2.EleFirst Science and Technology Co.,Ltd.,Nanjing 210007,China)
Abstract:Aiming at the problem of large communication rate differences between actual value and theoretical value in Universal Serial Bus(USB) development, USB communication rate is optimized in data exchange method and host side driver according to the characteristics of USB interface device PDIUSBD12 and USB protocol itself. A Direct Memory Access(DMA) controller applicable to expanded memory bus of LPC2200 series device using Flash FPGA is presented. Experimental results show that those optimization methods remarkably increase the USB data communication rate on PDIUSBD 12.
Keywords:Universal Serial Bus(USB)  communication rate  Direct Memory Access(DMA)
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