MC683XX系列嵌入式CPU在线下载程序的方法  

作　　者：袁璟[1] 高明 潘小强[3] 

机构地区：[1]南京工程学院通信工程系,210013 [2]南京国铁电气有限责任公司,210003 [3]解放军理工大学工程兵工程学院,210007

出　　处：《工业控制计算机》2005年第6期39-41,共3页Industrial Control Computer

摘　　要：目前用MC683XX系列嵌入式控制器生产的智能设备在电力系统已广泛应用,针对目前电力系统智能设备远程维护和软件升级的要求,介绍MC683XX系列嵌入式控制器在线下载程序的原理。分析了MC683XX的指令处理模块的特点,设计了引导程序和被下载程序的关系图。下载方式可采用串行口通讯、以太网通讯等多种方式。解决了引导程序和被下载程序的地址分配和二者程序切换问题,并提出方法实现被下载程序目标代码的格式转换,便于引导程序识别和使用。At present,the intelligent devices that use MC683xx Family of embedded controllers have been widely applied in electric power system.In allusion to the demands of remote maintenance and software upgrade for electric power system intelligent devices,the theory of online downloading program for MC68300 Family of embedded controllers is introduced.The relationship figure of boot program and download program is designed.The download mode consists of serial port communication,Ethernet communication,etc.The address allocation problem for boot program and download program and the program switch problem between two programs are all resolved.The format transform method of download program object code is introduced,then boot program can expediently identify and use download program.

关 键 词：MC683XX系列 嵌入式CPU 在线 下载程序 BOOT 单片机 

分 类 号：TP332[自动化与计算机技术—计算机系统结构] TP368.1[自动化与计算机技术—计算机科学与技术]