【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.更多还原

【Abstract】 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 S3C6410processor,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.更多还原