ECS及FIFO核在CCD数据采集中的应用  

The Application of ECS and FIFO Core in CCD Data Acquisition System

作　　者：谢印忠[1,2] 

机构地区：[1]临沂师范学院信息学院,山东临沂276005 [2]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《现代科学仪器》2010年第5期57-60,共4页Modern Scientific Instruments

摘　　要：CCD器件是现代视觉信息获取的一种基础器件,在可视图像及光谱分析中得到了越来越广泛的应用。对Sony公司的ILX554B型线阵CCD工作原理进行分析,针对驱动信号和数据采集、处理的具体问题提出了切实可行的解决办法。并利用Xilinx公司的集成综合环境(ISE)下的原理图输入工具(ECS)和有知识产权的集成电路芯核(IP),使用Verilog HDL语言层次化设计了CCD的驱动时序和积分时间控制单元,完成了模拟信号的快速模-数转换数据安全暂存,先对整个时序进行了功能仿真;利用现场可编程逻辑器件(FPGA)芯片实现了对型号为ILX554B线阵CCD驱动时序信号和数据采集电路,并在便携式光谱光度计中得到应用。CCD is a basilic device for obtaining optical information. It is widely used in the field of image processing and spectrum analysis. Based on FPGA and the timing Diagram of Sony ILX554B linear CCD, a CCD data acquisition system was successfully developed. By using ECS and Core Generator that are important tools for Xilinx ISE, control modules of driving time order and setting integration time were programmed with Verilog HDL and their functional emulation was verified. And asynchronous FIFO implementation using FPGA was for storing sample data temporarily. FPGA circuit and simulation wave were presented and the results of experiments indicated that the circuit succeeds in driving the CCD and collecting data. This system has been applied in a handy spectral photometer.

关 键 词：CCD 驱动信号 数据采集 现场可编程逻辑器件 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]