基于AM335X与WinCE7.0平台的内存配置方法及应用  

Application and the Memory Configuration Method Based on the AM335X and WinCE7.0 Platform

作　　者：袁霞 李泽银 YUAN Xia;LI Ze-yin(Automation Research Institute of China South Industries Group Gorporation,Mianyang 621000,China)

机构地区：[1]中国兵器装备集团自动化研究所,四川绵阳621000

出　　处：《软件导刊》2018年第6期39-44,共6页Software Guide

摘　　要：在嵌入式领域,时常需针对应用调整存储设备大小及更换型号,如何保证更换后系统正常运行,是各BSP移植调试的核心。以运行Windows CE7.0操作系统的AM3352主板为开发平台,详细介绍了更换存储芯片型号和大小后,WinCE7.0系统下的地址参数配置及修改虚拟地址映射关系的原理和方法。将DDR3 SDRAM芯片从H5TQ2G83DFR-G7C更换为H5TQ2G83DFR-H9C,NANDFlash芯片从H27U4G8F2DTR-BC更换为H27U1G8F2BTRBC,通过测试验证了该方法可行,主板能够正常启动进入操作系统桌面,系统各应用程序能正常运行。该方法可为不同物理内存大小和型号的SDRAM及NANDFlash芯片在WinCE7.0上移植与参数配置提供参考。In embedded domain,we often need to adjust the storage device size and replace models base on the application,and how to ensure that the system startup correctly is the core of BSP porting debugging.This paper is based on the AM3352 microprocessor and WinCE7.0operating system,introduces the principle and method about resetting the memory parameters and changing the cached address-mapping based on WinCE7.0operating system.We change the DDR3 SDRAM chip from H5TQ2G83DFR-G7 Cto H5TQ2G83DFR-H9 C,and changes the NANDFlash chip from H27U4G8F2DTR-BC to H27U1G8F2bTR-BC.The feasibility of above method is proved by the test,and the device starts successfully and logsin the OS desktop,solving the problems about transplanting the different SDRAM and NANDFlash chips which contain defferent physical address size or type on WinCE7.0,and resetting the memory parameters exactly.

关 键 词：WinCE7.0 内存管理 物理地址 虚拟地址 内存参数配置 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]