基于不同类型Flash-ROM的Bootloader设计  

Design of bootloader based-on different flash-ROM

作　　者：张起贵[1] 裴科[1] 张刚[1] 赵哲峰[1] 

机构地区：[1]太原理工大学信息工程学院,太原030024

出　　处：《计算机工程与应用》2007年第33期112-114,166,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(the National Natural Science Foundation of China under Grant No.60372058; No.60772101)

摘　　要：嵌入式微处理器片内资源越来越复杂以至于离开操作系统管理的嵌入式系统将无法有效运行。如何根据开发板硬件资源来设计嵌入式操作系统的引导程序(Bootloader),无疑是一个重点和难点。介绍了具有不同固态存储类设备的嵌入式开发平台上的Bootloader的概念、主要任务和实现分析等。对比了NAND Flash和NOR Flash的主要异同。以加载ARM-Linux操作系统内核为例,阐述了基于TI TMS320DM6446嵌入式系统开发平台上利用NAND及NOR Flash两类Flash-ROM(闪存)引导加载操作系统的软件设计方法。Embedded microprocessor inner resources are more and more complicated so that the resourceful embedded systems development platform does not work efficiently without the management of operating system.How to develop BootLoader on the basis of the specific hardware platform is a key point and difficulty without question.The main similarities and differences of NAND Flash are compared with that of NOR Flash.The concept,function and implement analysis of embedded operating system booting program--Bootloader are introduced at different Grin,sare-class storage device.Taking loading “RM-Linux operation system kernel as an example,soflware designing methods with two kinds of Flash-ROM NAND and NOR Flash are expatiated in TI TMS320DM6446-based Embedded Development Platfrom

关 键 词：BOOTLOADER TMS320DM6446 NOR FLASH NANDFlaslt 嵌入式系统 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]