基于FPGA的CameraLink图像数据接口设计

Design of CameraLink Image Data Interface Based on FPGA

依据航天测试领域对于图像采集系统中特定格式图像数据传输与处理的技术要求以及小型化低成本的设计要求,设计了一种基于FPGA的CameraLink图像数据接口。此接口选用可编程逻辑器件FPGA作为主控制芯片,通过编程FPGA代替接口转换芯片,实现CameraLink协议的LVDS信号在FPGA端口的直接接收,有效数据速率可达110 MB/s。

According to the technical requirements of the aerospace test field for the transmission and processing of image da-ta in a specific format in an image acquisition system,and the design requirements for miniaturization and low cost,an FPGA-based CameraLink image data interface was designed.This interface selects the programmable logic device FPGA as the main con-trol chip,and replaces the interface conversion chip by programming FPGA to realize the direct reception of the LVDS signal of the CameraLink protocol at the FPGA port,and the effective data rate can reach 110 MB/s.