北京大学DC-SC光阴极注入器和中国科学院高能物理研究所9cell超导腔均采用了数字化低电平控制系统,其中通讯子系统以STRATIX IV系列现场可编程门阵列(FPGA)开发板作为数字平台,通过采用编程片上系统( SOPC)技术及NIOSⅡIDE提供的开发环境,实现了三速以太网(TSE)的通讯功能,最后以LabView编辑的界面进行参数设定和数据读取.经过反复测试,通讯部分运行稳定.%DC -SC photocathode injector at Peking University and 9cell superconducting cavity at Institute of High Energy Physics have both adopted digital LLRF control system, in which communication system based on STRATIX IV series FPGA development Kit. Through the System - on - a - Programmable - Chip( SOPC) technology and the development environment provided by NIOS II IDE, It realized communication function with Tri - State Ethernet. The interface created by Labview has been used to set the parameters and get data. After repeating tests, the communication system has been running well all through.
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