基于FPGA和单片机的PCI数据采集卡  

Design of PCI Data Acquisition Card Based on FPGA and Microcontroller

作　　者：余林[1] 张厚武[1] 姚凯学[1] 

机构地区：[1]贵州大学计算机科学与信息学院,贵州贵阳550025

出　　处：《仪表技术与传感器》2011年第12期108-110,共3页Instrument Technique and Sensor

摘　　要：传统光栅测量设备采用ISA总线,而ISA总线传输速度低,不能满足高精度和高实时性的测量需求。设计并实现了一种基于FPGA和单片机的高性能PCI数据采集卡,使用Verilog HDL语言对FPGA进行编程,使FPGA实现对光栅信号的细分、辩向和计数功能;通过单片机读取FPGA可逆计数器内的数据并进行缓存和传输;设计了上位机和该数据采集卡的通信接口,PC机通过该通信接口对测量数据进行读取和处理。Traditional grating measurement equipment uses ISA bus,however,it is limited by the transmission speed of ISA bus,which can not meet the high precision and real time measurement requirements.This paper designed and implemented a high-performance PCI data acquisition card based on FPGA and MCU,using Verilog HDL hardware description language programming to FPGA.FPGA realize to subdivide and identify the direction and count the grating signal.Microcontroller reads data from the FPGA reversible counter and then stores and transmits the data.This paper designed a communication interface between the PC and the data acquisition card,PC read and processed the measurement data through the communication interface.

关 键 词：FPGA 单片机 PCI CH365 光栅测量 数据采集卡 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]