Design of data transmission for a portable DAQ system  

作　　者：周文雄 王彦瑜 南钢洋 张建川 

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Nuclear Science and Techniques》2014年第1期43-46,共4页核技术（英文）

摘　　要：Field Programmable Gate Array(FPGA),combined with ARM(Advanced RISC Machines) is increasingly employed in the portable data acquisition(DAQ) system for nuclear experiments to reduce the system volume and achieve powerful and multifunctional capacity.High-speed data transmission between FPGA and ARM is one of the most challenging issues for system implementation.In this paper,we propose a method to realize the high-speed data transmission by using the FPGA to acquire massive data from FEE(Front-end electronics) and send it to the ARM whilst the ARM to transmit the data to the remote computer through the TCP/IP protocol for later process.This paper mainly introduces the interface design of the high-speed transmission method between the FPGA and the ARM,the transmission logic of the FPGA,and the program design of the ARM.The theoretical research shows that the maximal transmission speed between the FPGA and the ARM through this way can reach 50 MB/s.In a realistic nuclear physics experiment,this portable DAQ system achieved 2.2 MB/s data acquisition speed.Field Programmable Gate Array （FPGA）, combined with ARM （Advanced RISC Machines） is increasingly employed in the portable data acquisition （DAQ） system for nuclear experiments to reduce the system volume and achieve powerful and multifunctional capacity. High-speed data transmission between FPGA and ARM is one of the most challenging issues for system implementation. In this paper, we propose a method to realize the high-speed data transmission by using the FPGA to acquire massive data from FEE （Front-end electronics） and send it to the ARM whilst the ARM to transmit the data to the remote computer through the TCP/IP protocol for later process. This paper mainly introduces the interface design of the high-speed transmission method between the FPGA and the ARM, the transmission logic of the FPGA, and the program design of the ARM. The theoretical research shows that the maximal transmission speed between the FPGA and the ARM through this way can reach 50 MB/s. In a realistic nuclear physics experiment, this portable DAQ system achieved 2.2 MB/s data acquisition speed.

关 键 词：便携式数据采集系统 高速数据传输 接口设计 现场可编程门阵列 FPGA 种用 ARM 远程计算机 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TN919.3[自动化与计算机技术—控制科学与工程]