基于Intel PXA270的Blob启动流程分析

PXA270是Intel发布的新一代的XScale处理器,最高主频达624 MHz,支持Wireless MMX技术,大大提升了多媒体处理能力。Blob是一款功能强大的Bootloader,他是系统加电启动运行的第一段软件代码,将软硬件紧密的结合在一起,对于嵌入式系统至关重要。本文基于Intel PXA270开发平台,结合经过实际验证的代码分析了Blob的启动流程和整体结构,为项目的后续开发打下了基础。

Startup Code Analysis of Biob Based on Intel PXA270

PXA270 is the new generation of XScale processor released by the Intel Co.,it can reach the highest frequency of 624 MHz,supports Intel Wireless MMX technology,which enhances the ability to handle multimedia greatly.Blob is an excellent kind of Bootloader,it is the first section of software code after the system start up.Blob combine hardware and software closely,which is very important for embedded system.This paper based on the Intel PXA270 developing platform,analyzes the startup process and integrate structure of Blob by using the tested startup code,gives a good foundation for the future project development.