基于FPGA和FLASH ROM的图像信号发生器设计  

Design of image signal generator based on FPGA and FLASH ROM

作　　者：杜磊[1,2,3] 王春鸿[1,2] 黄奎[1,2] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]中国科学院自适应光学重点实验室,四川成都610209 [3]中国科学院研究生院,北京100049

出　　处：《现代电子技术》2012年第11期84-87,共4页Modern Electronics Technique

摘　　要：以XC2V1500-FPGA为硬件架构,设计了一种图像信号发生器,作为自适应光学系统波前处理机的信号源,为波前处理机的调试和算法验证提供支持。系统采用大容量的NAND型FLASH存储数据,存储容量为1GB。图像数据通过USB总线预存入FLASH ROM,在FPGA控制逻辑作用下循环读出,并通过Camera Link接口输出。该Camera Link接口支持base,medium,full三种模式,输出像素时钟频率可以达到70MHz。By using XC2V1500-FPGA as the hardware architecture, an image signal generator which is used as the signal source of wavefront processor to support wavefront processor＇s debugging and algorithm validation is designed. The mass storage NAND FLASH ROM of 1 Gbyte is used to save data in the system. The image data is saved in FLASH ROM through USB bus, and then FPGA can control the data to read out from FLASH ROM to Camera Link interface. The Camera Link interface supports base, medium and full configuration modes. The output pixel clock of the Camera Link interlace can reach 70 MHz.

关 键 词：FPGA FLASH ROM 图像信号发生器 USB CAMERA LINK 

分 类 号：TN911.6[电子电信—通信与信息系统]