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设计了基于内嵌高速收发器RocketIO的现场可编程门阵列(FPGA)的多路光纤图像传输系统,能够对Camera Link接口模式的高速大容量图像数据进行实时传输。详细给出了系统总体结构设计、硬件实现中需要注意的问题和若干关键的软件功能模块,包括并口转换模块、图像传输控制逻辑和RocketIO的设计和配置。实验显示传输系统的三通道有效数据传输速率达7.2Gb/s,传输线路稳定可靠,满足光电探测设备对传输带宽的需求。
A multi-channel optical fiber image transmission system based on Field Programmable Gate Array (FPGA) with embedded high-speed transceiver RocketIO is designed to transmit real-time high-speed and large-capacity image data in Camera Link interface mode. The system structure design, the problems needing attention in hardware implementation and some key software function modules are given in detail, including parallel port conversion module, image transmission control logic and RocketIO design and configuration. Experimental results show that the effective transmission rate of three channels of the transmission system reaches 7.2Gb / s, the transmission line is stable and reliable, and meets the requirement of photoelectric detection equipment for transmission bandwidth.