基于SRIO的双备份数据传输

Dual backup data transmission based on SRIO

为了解决在特殊条件下数据通道受到外界因素影响导致数据无法传输的问题,提出一种基于SRIO的双备份数据传输设计方案。设计中使用两个独立的SRIO IP核来实现主路通道和备份通道数据的独立传输,同时通过通道选择模块对数据传输通道进行备份选择。该方案以Xilinx的Kintex 7系列FPGA为SRIO的连接设备,物理层以FPGA芯片内部集成的GTX高速串行收发器作为传输基础;传输链路采用“光模块+光缆”代替电缆实现数据的高速可靠传输,该方案已运用到遥测系统数据采集装置项目,实现了FPGA设备间双备份数据传输。

In order to solve the problem of data transmission failure caused by external factors affecting data channels under special conditions,a dual backup data transmission design scheme based on SRIO is proposed.In the design,two independent SRIO IP cores are used to achieve independent transmission of data from the main channel and backup channel,and backup selection of data transmission channels is carried out through the channel selection module.This solution uses Xilinx's Kintex 7 series FPGA as the connection device for SRIO,and the physical layer uses the GTX high-speed serial transceiver integrated inside the FPGA chip as the transmission foundation.The transmission link uses"Optical module+optical cable"instead of cable to realize high-speed and reliable data transmission.This scheme has been applied to the telemetry system data acquisition device project to achieve dual backup data transmission between FPGA devices.