IROM启动下的U-Boot自动烧写功能的实现  

Implementation of auto-programming function of U-Boot in IROM booting

作　　者：沈永增[1] 王炜[2] 郑敏[1] 

机构地区：[1]浙江工业大学信息工程学院,浙江杭州310023 [2]浙江工业大学计算机科学与技术学院,浙江杭州310023

出　　处：《浙江工业大学学报》2013年第6期651-654,共4页Journal of Zhejiang University of Technology

摘　　要：Bootloader是嵌入式系统上电后运行的第一个程序,U-Boot是嵌入式系统中最常用的Bootloader之一.IROM启动是目前嵌入式处理器中,普遍采用的一种启动方式,而SD卡作为当前最火热的外部存储器之一,经常被用来当作IROM启动方式中的外部启动介质.详细分析了S3C6410处理器的IROM启动方式,以及在IROM启动下,采用SD卡作为启动介质的基于U-Boot的嵌入式系统中,如何利用SD卡,自动从其FAT分区中读取U-Boot、Linux内核及文件系统镜像文件,以达到自动烧写的目的.相比传统的串口、以太网和USB烧写,SD卡烧写具有操作方便、快捷的优点.The Bootloader is the first running program after the embedded system is powered, and U-Boot is one of the most commonly used Bootloaders in embedded system. IROM booting is commonly used as the start-up mode in an embedded processor. The SD card as one of the hottest external memories is often used as the external booting media in IROM booting. Firstly, the paper analyzes the IROM booting mode in $3C6410 processor, then focuses on how the SD card is used as the external booting device in IROM booting to read the U-Boot, Linux kernel and system image files from the FAT partition in order to program these image files automatically. Compared to the traditional serial, Ethernet and USB programming method, this method is easier and faster.

关 键 词：S3C6410 嵌入式系统 U—Boot 烧写 BOOTLOADER 

分 类 号：TP368.2[自动化与计算机技术—计算机系统结构]