Design of LXI Parallel Data Acquisition Module

In order to meet the requirements of distributed measuring, a parallel data acquisition system based on LXI standard is designed. This paper introduces the core control architecture of ARM+FPGA and modularization design plan. The hardware circuit includes the LXI interface module and functional module. Implementation of LXI interface based on ARM and Linux with completed network protocol and multiple task management system which is mainly to complete network communication function. The function module achieves control of data acquisition and memory data dumps based on FPGA. Then paper introduces the design of software based on LXI software architecture, including IVI-COM driver and ARM server program. Through the actual testing experiment, proves the rationality of the design and meets the requirements of design index.