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介绍了一个基于高速协议变换的实时图像采集系统,该系统实现了从IEEE1394协议到千兆以太网协议的实时变换,将基于IEEE 1394协议的数字相机发出的图像数据转发到以太网上.系统设计使用了SOPC(System On a Programmable Chip)技术,通过Avalon总线将Nios Ⅱ处理器,千兆网MAC核和自定义的1394芯片接口逻辑等IP组件连接在一起形成主要的硬件电路,结合系统软件设计实现了对高速图像数据的实时转发.系统达到了较好的性能,同时具有集成度高,结构简单和扩展性好的特点,展示了利用SOPC技术解决此类问题的优势.
A real-time image acquisition system based on high-speed protocol transformation is introduced, which realizes real-time transformation from IEEE1394 protocol to Gigabit Ethernet protocol and forwards the image data sent by the digital camera based on IEEE 1394 protocol to Ethernet. SOPC (System On a Programmable Chip) technology, through the Avalon bus Nios Ⅱ processor, gigabit MAC core and custom 1394 chip interface logic and other IP components connected together to form the main hardware circuit, combined with the system software design Real-time forwarding of high-speed image data.The system has achieved better performance, at the same time has the characteristics of high integration, simple structure and good scalability, and shows the advantages of using SOPC technology to solve such problems.