【摘要】：隨著以太網(wǎng)技術(shù)的不斷發(fā)展，一種新型儀器總線技術(shù)LXI應(yīng)運(yùn)而生，LXI總線技術(shù)即以太網(wǎng)技術(shù)在儀器領(lǐng)域的擴(kuò)展。LXI儀器的優(yōu)勢(shì)在于基于標(biāo)準(zhǔn)化的LAN接口，并支持IEEE1588精確時(shí)鐘同步協(xié)議，同時(shí)擁有基于多點(diǎn)低壓差分電氣接口的硬件觸發(fā)系統(tǒng)等功能。目前，多通道數(shù)據(jù)采集器的應(yīng)用非常廣泛，但國內(nèi)尚未有大量的LXI多通道數(shù)據(jù)采集器出現(xiàn)，缺乏LXI儀器的優(yōu)勢(shì)。 本論文研究內(nèi)容是基于ARM11的LXI多通道數(shù)據(jù)采集器。本論文從硬件與軟件兩個(gè)方面提出完整設(shè)計(jì)方案，并詳細(xì)描述了軟硬件實(shí)現(xiàn)過程。在硬件設(shè)計(jì)部分，硬件電路采用核心板、底板方式設(shè)計(jì)。核心板電路主要采用基于ARM11的S3C6410芯片作為處理器。底板電路又包括數(shù)據(jù)采集部分、基于LAN的網(wǎng)絡(luò)通信部分、人機(jī)交互部分與系統(tǒng)運(yùn)行所需電路部分。本論文詳細(xì)分析了硬件電路原理圖設(shè)計(jì)，并給出了主要芯片選型。在軟件設(shè)計(jì)部分，采用嵌入式Linux操作系統(tǒng)，并給出了完整的軟件設(shè)計(jì)方案。詳細(xì)描述了對(duì)Bootloader、kernel與filesystem的制作與移植過程。同時(shí)，，對(duì)實(shí)現(xiàn)LXI儀器的關(guān)鍵技術(shù)進(jìn)行了深入的分析。其中，通過移植DHCP客戶端源程序?qū)崿F(xiàn)了LXI儀器的LAN配置功能，通過移植嵌入式Boa服務(wù)器實(shí)現(xiàn)了Web人機(jī)接口功能，通過移植VXI-11協(xié)議實(shí)現(xiàn)了LXI儀器網(wǎng)絡(luò)發(fā)現(xiàn)功能以及實(shí)現(xiàn)了基于二叉樹搜索遍歷的SCPI解釋器。 最后，本論文總結(jié)了基于ARM11的LXI多通道數(shù)據(jù)采集器的完成情況，并針對(duì)其功能與性能提出了改善建議。
[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.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP274.2;TP368.12

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

1 寇丹麗;TD-SCDMA基站電磁輻射測(cè)量系統(tǒng)的設(shè)計(jì)與測(cè)量布點(diǎn)方案的研究[D];鄭州大學(xué);2013年

2 景振華;基于ARM9的B類LXI信號(hào)發(fā)生器的研究與實(shí)現(xiàn)[D];西安電子科技大學(xué);2013年

本文編號(hào)：2469328