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中国科学院近代物理研究所自主研发的ADS 162.5 MHz高频低电平控制采用数字化技术实现,控制环路的参数设置、开闭环操作以及状态监测都通过监控系统实现。该系统基于以太网通讯,采用轻量化客户端-服务器端的工作方式,运行在上位机的客户端程序发送指令数据包,运行在高频数字低电平系统的服务器端响应指令,完成参数监测与控制。系统首先以Atera公司Stratix Ⅲ系列现场可编程门阵列(FPGA)开发板为基础,构建以Nios Ⅱ处理器和三速以太网接口为核心的服务器端硬件系统;其次基于Micro C/OSⅡ实时操作系统和轻量级TCP/IP协议栈,设计服务器端软件系统;最后利用MFC设计运行于上位机的客户端界面程序。经过长时间测试运行,该监控系统运行稳定可靠,TCP发送和接收吞吐率达到11.931 038 Mbps和8.117 624 Mbps。
The ADS 162.5 MHz high-frequency low-level control independently developed by the Institute of Modern Physics, Chinese Academy of Sciences, is implemented using digital technology. The control loop parameter settings, open-loop operation and status monitoring are all implemented through the monitoring system. The system is based on Ethernet communication and adopts the lightweight client-server working mode. The client program running on the host computer sends the command packet and runs on the server side of the high-frequency digital low-level system to respond to the command to complete the parameter monitoring control. The system is based on Atera Stratix Ⅲ series field programmable gate array (FPGA) development board, build a server-side hardware system with Nios Ⅱ processor and three-speed Ethernet interface as the core; second, based on the Micro C / OS Ⅱ real-time operating system And lightweight TCP / IP protocol stack, design server-side software system; Finally, the use of MFC designed to run on the host computer client interface program. After a long test run, the monitoring system runs stably and reliably, and the TCP sending and receiving throughput rate reaches 11.931 038 Mbps and 8.117 624 Mbps.