| EBoot下USB下载功能的实现 |
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| 引用本文： | 左成兵,张彬,戚隆宁,张萌.EBoot下USB下载功能的实现[J].现代电子技术,2008,31(24). |
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| 作者姓名： | 左成兵 张彬 戚隆宁 张萌 |
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| 作者单位： | 东南大学,国家专用集成电路系统工程技术研究中心,江苏,南京,210096 |
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| 摘 要： | 在基于WinCE构建的嵌入式系统中EBoot下载功能尤为重要。EBoot原始方案中具有网口与串口下载的实现而缺乏通过USB进行下载的功能。在USB功能单元层次上提出一种数据传输协议,并基于此协议在SEP5010嵌入式平台上实现EBoot下的USB数据传输,从而实现EBoot对USB下载功能的支持。实验结果表明,该方案可以达到799 kB/s的数据平均传输速度,在不增加额外电路的前提下实现了SEP5010平台上EBoot的USB数据下载功能。
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| 关 键 词： | 镜像下载 |
Realization of Download Function in EBoot through USB |
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| ZUO Chengbing,ZHANG Bin,QI Longning,ZHANG Meng.Realization of Download Function in EBoot through USB[J].Modern Electronic Technique,2008,31(24). |
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| Authors: | ZUO Chengbing ZHANG Bin QI Longning ZHANG Meng |
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| Abstract: | EBoot download function is particularly important in the WinCE-based embedded system.Network and UART are two extensively used download methods,while USB download is not emphasized on.This paper gives a data transfer protocol on the functionality layer of USB client framework,and implements the data transportation using USB interface integrated in the SEP5010 chip.Accordingly,USB download for EBoot works perfect.The experiment shows that fast transmission is achieved by 799 kB/s on average,therefore USB download function of EBoot on SEP5010 platform without increasing circuit complexity is realized. |
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| Keywords: | USB SEP5010 EBoot |
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