资 源 简 介
针对设计微型光谱仪时常会根据需要更换CCD，PDA的现状，采用Cypress公司的AD2131Q和Cyclone系列FPGA设计适用于多种线阵CCD和小型面阵CCD的通用采集系统，设计16口入8口出异步FIFO，提供192Kb高速缓存空间。USB器件采用快速读入方式，极大提高了数据传输速度。系统实现了多种线阵CCD采集，同时也实现了相关双采样技术，具有快速、便捷、模块化的特点。
Abstract:
According to the fact that the current design of micro－spectrometer needs to replace CCD，PDA device frequently，using Cypress’s AD2131Q and Cyclone series FPGA design a universal acquisiTIon system which can be applied to a variety of linear array CCD and small area array CCD，the design of16In8Out asynchronous FIFO provides192Kb cache.EZ－USB adopts special fast bulk transfer mode，which greatly improves the speed of data transmission.The system achieves a variety of linear array CCD collecTIon and correlated double sampling（CDS）technique，it features speediness，convenience and modularizaTIon.
