基于ARM11的LXI多通道数据采集器的研究与实现
发布时间：2019-05-05 06:12
【摘要】：随着以太网技术的不断发展，一种新型仪器总线技术LXI应运而生，LXI总线技术即以太网技术在仪器领域的扩展。LXI仪器的优势在于基于标准化的LAN接口，并支持IEEE1588精确时钟同步协议，同时拥有基于多点低压差分电气接口的硬件触发系统等功能。目前，多通道数据采集器的应用非常广泛，但国内尚未有大量的LXI多通道数据采集器出现，缺乏LXI仪器的优势。 本论文研究内容是基于ARM11的LXI多通道数据采集器。本论文从硬件与软件两个方面提出完整设计方案，并详细描述了软硬件实现过程。在硬件设计部分，硬件电路采用核心板、底板方式设计。核心板电路主要采用基于ARM11的S3C6410芯片作为处理器。底板电路又包括数据采集部分、基于LAN的网络通信部分、人机交互部分与系统运行所需电路部分。本论文详细分析了硬件电路原理图设计，并给出了主要芯片选型。在软件设计部分，采用嵌入式Linux操作系统，并给出了完整的软件设计方案。详细描述了对Bootloader、kernel与filesystem的制作与移植过程。同时，，对实现LXI仪器的关键技术进行了深入的分析。其中，通过移植DHCP客户端源程序实现了LXI仪器的LAN配置功能，通过移植嵌入式Boa服务器实现了Web人机接口功能，通过移植VXI-11协议实现了LXI仪器网络发现功能以及实现了基于二叉树搜索遍历的SCPI解释器。 最后，本论文总结了基于ARM11的LXI多通道数据采集器的完成情况，并针对其功能与性能提出了改善建议。
[Abstract]:With the continuous development of Ethernet technology, a new instrument bus technology, LXI, emerges as the times require. LXI bus technology is the extension of Ethernet technology in the field of instruments. The advantage of LXI instrument is based on standardized LAN interface. It also supports IEEE1588 precise clock synchronization protocol and has the functions of hardware trigger system based on multi-point low-voltage differential electrical interface. At present, the application of multi-channel data collector is very wide, but there have not been a large number of LXI multi-channel data collector in our country, which lacks the advantage of LXI instrument. The research content of this paper is LXI multi-channel data collector based on ARM11. This paper puts forward a complete design scheme from hardware and software, and describes the realization process of hardware and software in detail. In the hardware design part, the hardware circuit adopts the core board, the bottom plate design. The core board circuit mainly uses the S3C6410 chip based on ARM11 as the processor. The backplane circuit also includes the data acquisition part, the network communication part based on LAN, the man-machine interaction part and the circuit part needed to run the system. In this paper, the schematic design of hardware circuit is analyzed in detail, and the selection of main chips is given. In the software design part, the embedded Linux operating system is adopted, and the complete software design scheme is given. The process of making and transplanting Bootloader,kernel and filesystem is described in detail. At the same time, the key technology of realizing LXI instrument is deeply analyzed. Among them, LAN configuration function of LXI instrument is realized by transplanting DHCP client source program, and Web man-machine interface function is realized by transplanting embedded Boa server. The network discovery function of LXI instrument is realized by transplanting VXI-11 protocol and the SCPI interpreter based on binary tree search traversal is implemented. Finally, this paper summarizes the completion of LXI multi-channel data collector based on ARM11, and puts forward some suggestions to improve its function and performance.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP274.2;TP368.12
本文编号：2469328
[Abstract]:With the continuous development of Ethernet technology, a new instrument bus technology, LXI, emerges as the times require. LXI bus technology is the extension of Ethernet technology in the field of instruments. The advantage of LXI instrument is based on standardized LAN interface. It also supports IEEE1588 precise clock synchronization protocol and has the functions of hardware trigger system based on multi-point low-voltage differential electrical interface. At present, the application of multi-channel data collector is very wide, but there have not been a large number of LXI multi-channel data collector in our country, which lacks the advantage of LXI instrument. The research content of this paper is LXI multi-channel data collector based on ARM11. This paper puts forward a complete design scheme from hardware and software, and describes the realization process of hardware and software in detail. In the hardware design part, the hardware circuit adopts the core board, the bottom plate design. The core board circuit mainly uses the S3C6410 chip based on ARM11 as the processor. The backplane circuit also includes the data acquisition part, the network communication part based on LAN, the man-machine interaction part and the circuit part needed to run the system. In this paper, the schematic design of hardware circuit is analyzed in detail, and the selection of main chips is given. In the software design part, the embedded Linux operating system is adopted, and the complete software design scheme is given. The process of making and transplanting Bootloader,kernel and filesystem is described in detail. At the same time, the key technology of realizing LXI instrument is deeply analyzed. Among them, LAN configuration function of LXI instrument is realized by transplanting DHCP client source program, and Web man-machine interface function is realized by transplanting embedded Boa server. The network discovery function of LXI instrument is realized by transplanting VXI-11 protocol and the SCPI interpreter based on binary tree search traversal is implemented. Finally, this paper summarizes the completion of LXI multi-channel data collector based on ARM11, and puts forward some suggestions to improve its function and performance.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP274.2;TP368.12
【引证文献】
相关硕士学位论文 前2条
1 寇丹丽;TD-SCDMA基站电磁辐射测量系统的设计与测量布点方案的研究[D];郑州大学;2013年
2 景振华;基于ARM9的B类LXI信号发生器的研究与实现[D];西安电子科技大学;2013年
本文编号：2469328
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