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arXiv 1503.08819physics.ins-detcs.ARhep-ex
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基于FPGA的高能物理高速数据采集系统

FPGA based High Speed Data Acquisition System for High Energy Physics Application

Swagata Mandal, Suman Sau, Amlan Chakrabarti, Subhasis Chattopadhyay

摘要:

在高能物理实验中,需要在探测器/传感器与上位机之间进行高速、容错的数据通信。在HEP实验中,由于各种外部效应,如带电粒子的存在、环境中的噪声或辐射效应,可能在通信硬件中发生瞬时故障,并导致单/多比特错误。为了使通信系统在这样的辐射环境中保持正常工作,在这种辐射环境中,人的直接干预是不可能的,一个高速数据采集(DAQ)架构,支持错误恢复是必要的。提出了一种基于现场可编程门阵列(FPGA)的高速数据采集系统的有效实现方案,该系统采用多比特纠错模型支持光通信链路。该设计已在Xilinx Kintex-7板上实现,并通过了板对板通信和使用PCI(外围组件互连快速)的PC通信测试。板对板和板对PC的数据通信速度达到了4.8Gbps,并对资源利用率和关键路径延迟进行了测量。

英文摘要:

In high energy physics experiments (HEP), high speed and fault resilient data communication is needed between detectors/sensors and the host PC. Transient faults can occur in the communication hardware due to various external effects like presence of charged particles, noise in the environment or radiation effects in HEP experiments and that leads to single/multiple bit error. In order to keep the communication system functional in such a radiation environment where direct intervention of human is not possible, a high speed data acquisition (DAQ) architecture is necessary which supports error recovery. This design presents an efficient implementation of field programmable gate array (FPGA) based high speed DAQ system with optical communication link supported by multi-bit error correcting model. The design has been implemented on Xilinx Kintex-7 board and is tested for board to board communication as well as for PC communication using PCI (Peripheral Component Interconnect express). Data communication speed up to 4.8 Gbps has been achieved in board to board and board to PC communication and estimation of resource utilization and critical path delay are also measured.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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