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.
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