多通道高速数据采集系统PCI接口的结构设计

The design of the structure of PCI interface of the data-collection system with multi-channels and high speed

构建了一个多通道高速数据采集系统的PCI接口通用结构模型 .一方面将硬件特别是逻辑设计部分模块化 ,另一方面注意了驱动程序和硬件的配合 ,优化软件、硬件的结构设计 .同时还给出了部分模块的实现方法 ,并结合微机系统原理就如何提高PCI总线接口的通道利用率和数据传输速率作了讨论 。

Hardware and logic circuit were correctly separated into several blocks. The cooperation between driver and hardware was emphasized to optimize the structure design of software and hardware. The way to realize the function of some blocks was given, and the method on how to increase the using ratio of channel and the speed of data transfer was discussed partly according to the principle of microcomputer system.