The invention discloses a multi channel parallel reconfigurable instrument based on LXI, which comprises a substrate, instrument board, FPGA logic circuit, test program set and Web server; the substrate and the functions of the instrument board as the main components of the invention, the two jointly installed in the instrument box. The former mainly realizes the software function and hardware logic circuit of the system, and the latter mainly realizes the mutual conversion between analog signal and digital signal. The method is based on the LXI standard design, to two times the development of instrument; with multi channel parallel testing ability, each channel can flexibly change the function of the instrument; the use of instruments do not need to install software, as long as the browser can operate the instrument and instrument configuration.
【技术实现步骤摘要】
【技术保护点】
１．基于ＬＸＩ的并行多通道可重构仪器，其特征在于，包括基板、仪器功能板、ＦＰＧＡ逻辑电路、测试程序集和Ｗｅｂ服务器；仪器功能板包括Ａ／Ｄ转换模块、Ｄ／Ａ转换模块和频率／相位测量模块；Ａ／Ｄ转换模块和频率／相位测量模块连接输入调理电路，Ｄ／Ａ转换模块连接输出调理电路；测试信号中的模拟信号量输入至仪器功能板的输入调理电路，然后经过Ａ／Ｄ转换模块转换成数字量输出到基板；频率信号输入至仪器功能板的输入调理电路，频率／相位测量模块将其转换为ＴＴＬ电平的方波，输出至基板；基板输出至仪器功能板的数字量经过Ｄ／Ａ转换模块转换成模拟信号，然后通过输出调理电路输出；仪器功能板和基板通过数字Ｉ／Ｏ连接器连接；基板包括ＡＲＭ９核心板、ＦＰＧＡ、ＣＰＬＤ、电源管理、以太网网络接口和ＵＳＢ接口，另外还设有用于调试的ＲＳ２３２Ｃ串口；电源管理给基板和仪器功能板提供电压，ＦＰＧＡ的上层通过数据／地址／控制总线和ＡＲＭ９核心板相连，底层通过数字Ｉ／Ｏ连接器和仪器功能板相连；系统上电后，ＣＰＬＤ的配置模块自动从ＦＬＡＳＨ存储器读取硬件电路配置信息，配置ＦＰＧＡ内部的逻辑电路；在上电情况下，如果用户需要改变仪器功能，从上位...
【技术特征摘要】
【专利技术属性】
技术研发人员：于劲松，周振彪，周山，贾龙，刘浩，
申请(专利权)人：北京航空航天大学，
类型：发明
国别省市：11
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