小容量单片机软件在线升级实现  

The implementation of on-line software update for singlechip with small storage

作　　者：周永[1] 王健[1] 

机构地区：[1]杭州电子科技大学电子信息学院,杭州310018

出　　处：《工业仪表与自动化装置》2010年第6期73-75,共3页Industrial Instrumentation & Automation

摘　　要：随着物联网时代的到来,基于无线网络的远程数据处理也越来越重要。在嵌入式领域,由于只有通过烧写器才能将程序烧入单片机,工程人员不可能都配备烧写器,所以通过串口的软件在线升级就势在必行。通常的升级方式都是针对大容量存储空间,但是由于结构、功耗等方面的考虑,一款产品选用的单片机存储空间也很小,当应用程序已经占用大部分RAM或者FLASH的时候,通常的升级方式就不可行了。针对这种现状,基于Freescale的MC9S08单片机,提出了一种小容量单片机软件升级的方法。该方法运行稳定可靠,具有一定的实用价值。With the approaching of the age of internet of things,remote data processing which is based on the wireless becomes irreplaceable.In the field of embedded,using emulator is the only way to download the code into singlechip,it′s impossible to equip every engineers,so it′s imperative to download the code by serial port.The normal ways for updating are always based on large storage,since with the limitation of the structure and power,the singlechip with small storage is always picked.If the application code takes most storage of the singlechip,there is not enough room left for updating,so this way can′t works.In the view of this situation,this paper develops a new solution based on the MC9S08 singlechip of Freescale.This solution is proved stable and practical.

关 键 词：小容量 单片机 在线 软件升级 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]