摘要
在新型智能手机、移动终端、PDA等便携设备的开发过程中,通过串口或以太网进行文件下载的传统方式受到下载速度或设备尺寸等因素的限制,无法满足研发需求,因此,需要一种更具可行性和适用性的替代方案。该文基于引导程序开发了一套USB文件下载系统,在不依赖于任何上层系统软件的情况下,能够方便高效地下载任意文件到设备端内存中,在开发调试阶段用于下载内核和驱动,在产品化阶段用于系统软件的更新和升级。
When developing new generation portable devices such as advanced mobile terminal and personal digital assistant, the traditional serial port and Ethernet interface are not suitable for downloading larger files. A novel method using USB to download files in Bootloader is proposed. For TI H2 evaluation board and the self-designed mobile terminal this paper develops the USB download function, which can be used in developing and production phases for system software download and upgrade.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第6期268-270,共3页
Computer Engineering
