高速数据采集系统中的PCI中断处理机制和DMA编程  

PCI Interrupt Processing Mechanism and DMA Programming in Data Collection System of High Rate

作　　者：王孝国[1] 王凌[2] 张雄伟[1] 

机构地区：[1]解放军理工大学通信工程学院电子信息工程系,江苏南京210007 [2]总参第 63研究所

出　　处：《军事通信技术》2004年第1期44-47,共4页Journal of Military Communications Technology

摘　　要：PCI总线是一种高性能的计算机局部总线,在数据采集传输存储系统中,通过PCI总线可以获得很宽的传输带宽。文中介绍了基于PCI总线的高速数据采集系统中断处理机制和中断程序的设计以及DMA传输的编程实现,给出了PCI接口卡的硬件设计和驱动程序设计的关键部分。在Windows98操作系统下,该系统可以在10MB/s的速度下实现无丢失的数据传输存储操作。PCI local bus is a high performance computer system bus, by which a wide data transfer bandwidth can be obtained, so using PCI bus for data transfer in the high rate capture system is the best choice. In this article, based on PCI local bus, a scheme for data collection system of high rate is presented and the driver development of interrupt operation and DMA programming is discussed. The hardware structure of the PCI card and the flow of the driver are presented. Under the OS of Windows 98, data can be transferred and stored at 10 MB/s without loss through the system.

关 键 词：PCI总线 虚拟设备驱动程序 数据采集 中断 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]