| 摘要: |
| 板级支持包(BSP)是嵌入式系统中联系操作系统与硬件平台的桥梁。以PowerPC体系架构下
的MPC8548E的微处理器硬件为平台，研究了VxWorks操作系统的启动过程，并从BSP的总体架
构
、存储空间的地址分配、运行过程等方面进行分析，提出了一种新的策略来优化实时操作系
统启动时间，通过实验证明此方法可行且安全，具有一定的适用性。 |
| 关键词: 嵌入式系统；启动时间；PowerPC体系；板级支持包 自举；优化设计 |
| DOI： |
|
| 基金项目: |
|
| Optimized Design of Embedded Real-time System Bootloading Based on MPC8548E |
| SUN Liang,YANG Bin,ZHONG Yu |
| () |
| Abstract: |
| Board Supporting Packet(BSP) is the bridge between the operating system and the
hardware platform in an
embedded system.This paper describes how to shorten the VxWorks operating syste
m startup time based on MPC8548E under PowerPC architecture,analyses and designs
the BSP
from the overall architecture and the address assigned of storage and the runnin
g process, and proposes a new policy which can optimize the startup time of re
altime operating system. Finally，it proves the feasibility and security of
this method by experiment.This method has a certain commonality and flexibility. |
| Key words: embedded system startup time PowerPC architecture board supporting packet bootlo
ading optimized design |
《电讯技术》编辑部 