摘要
结合CH365相关的技术资料,给出了CH365在硬盘还原卡中应用的实例,简述了还原卡地址空间映射和工作模式的设定.针对还原卡的技术特点介绍了还原卡ROM的数据结构,给出了还原卡对BIOS运行时系统控制权的获取、对硬盘I/O重定位以及对系统CMOS数据保护的方法,测试了随CH365提供的应用程序库BRM中的相关程序.基于CH365的硬盘还原卡具有硬件结构简单、还原速度快、即插即用、不占IRO中断和I/O地址等计算机系统资源的特点,增强了还原卡的安全性和兼容性.CH365不仅适用于设计硬盘还原卡、扩展ROM卡等,还适用于设计高速实时的I/O控制卡、通信接口卡、数据采集卡和电子盘等;CH365所具有的本地硬件定址功能,还可用于将原有的ISA板卡直接升级到PCI总线上.
This paper gave an example of CH365 in the application of hard disk restoring card with its technological materials,and gave a brief account of mapping of address space and setting of working modes of restoring card, and introduced the structure of data of resoring card's ROM for its technological features, how to obtain BIOS system control, the fixed position again to hard disk I/O and the data protecting of COMS in the hard disk restoring card. It also tested related programs in BRM library applied by CH365. The hard disk restoring card based on CH365 has simple hard structure, fast restoring speed, plug and play card, no occupying IRO interrupt and I/O address of the system resources of the computer, and strengthens the safety and compatible function of the restoring card. It not only suits the designing hard disk restoring card and extends ROM card, but also suits the design of fast speed, timely I/O controlling card, signal interface card, data collect card, electronic disk etc, and there are some applications. The formerly card based on ISA bus can be directly improved to card based on PCI bus and is convenient by its local hard setting address of function.
出处
《宁夏工程技术》
CAS
2004年第2期141-143,146,共4页
Ningxia Engineering Technology
