小型分布式定时触发系统在EAST中的应用  

Application of the Small Distributed Timing Trigger System in EAST

作　　者：晏晓东[1] 罗家融[1,2] 王华忠[2] 

机构地区：[1]东华大学理学院,上海201620 [2]中国科学院等离子体物理研究所,合肥230031

出　　处：《微计算机信息》2008年第32期42-44,共3页Control & Automation

基　　金：国家自然科学基金资助项目"基于等通量快速算法的托克马克非圆等离子体控制研究"(批准号:10475079)

摘　　要：EAST装置是一种利用磁场来约束等离子体的受控热核聚变物理实验装置。分布式定时触发系统是EAST装置总控系统的重要组成部分之一,用来为各子系统提供精确的触发时刻和为数据采集系统提供统一的时钟信号,该系统是以AVR系列单片机atmega128为核心,基于NUT/OS嵌入式实时操作系统和FPGA完成了其主要模块的基本设计,本文给出了该系统的硬件、软件的设计方案与实现方法。实验结果表明,该系统使用灵活稳定,符合预定的设计目标。EAST Superconductive Tokamak is one kind of physical experiment installation which restrains the plasma using the magnetic field to control thermonuclear fusion. The distributed timing trigger system, which is used to provide precise trigger time to the subsystems and unification clock signals to the data acquisition system, is an important part of the central control system of the EAST Toakamak. This job is centering on atmega128, based on the embedded RTOS NUT/OS and EPGA to complete the basic design of the main system. In this paper, we have given the designing scheme and available method on its hardware and software. Experimental results imply that this system is flexible and stable, conforms to the designing goal prearranged.

关 键 词：TOKAMAK 分布式 以太网 实时操作系统 FPGA 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]