基于SRIO的高速图像串行传输系统设计

A High-speed Serial Transport Platform Based on SRIO for High-resolution Image

针对CCD图像具有分辨率高、数据量大的特点,本文提出一种新的平台,可实时完成数据采集,并将采集的数据通过SRIO接口以3.125Gb/s的速度进行传输与显示。该方法根据SRIO接口协议,采用FPGA+DSP的方式,利用FPGA内的高速串行通信接口MGT,实现SRIO通信协议,与DSP之间的SRIO接口模块进行高速传输,再通过DSP的网络接口将接收到的数据实时传输到PC机,进行显示。实验结果表明,这种新的平台能够实时传输所采集的CCD相机数据,并具有可靠性高,可移植性强,升级简单,易于工程实现的优点。

CCD image usually has a huge amount of data with high-resolution, therefore it is difficult to transport the image data real-timely in real project. In the traditional method, we usually first capture and then transport the image data through parallel interfaces, which possess large area and pins in the resource limited embedded system. We advance a new platform of CCD image capture and transport system based on the Serial RapidIO （SRIO） interface, and the CCD image is displayed immediately at a line speed of 3.125 Gb/s. Since its stability and portability has been tested, the platform can＇ service as a reference model for such real-time and high-resolution image transport system designs.