一种基于PCI总线与PIC单片机通信的实现方法

基于PCI总线实现各种数据通信、数据采集以及状态控制已得到广泛的应用。本设计在遵循PCI总线原理下，利用CPLD中I／O资源丰富、用户可自定制逻辑的优势，应用Verilog HDL语言完成对PCI总线接口芯片的设计与实现，并通过接口芯片实现PIC单片机与上层应用程序的通信任务，完成各项控制命令。

A Method for Communication with PIC Microcontrollers Based on PCI Local Bus

Data communication,data collection and state control based on PCI local bus have been applied in many fields.This design abides by PCI local bus principle.With the advantage of many I/O in CPLD and the function of defining logic by users, the chip design of PCI interface by Verilog HDL is accom-plished. Communication and control between the computer and PIC Microcontrollers is realized by the chip.