Study And Realization Of The Interface Module For A-Class LXI Instruments

This paper is based on LXI bus—the main research issue of Tracking control center of technology and equipment. The paper discusses the Class A LXI bus device function module design and implementation based on LXI standards, mainly includingμC/OS embedded system, TCP/IP and transplant of Web server microprocessors in S3C44B0X, the implementation of remote control, the research and implementation methods of IEEE 1588 clock synchronization protocols and hardware trigger bus.This paper designs a platform V1.1 centering on S3C44B0X microprocessor, having such designs as 100M Ethernet, USB, serial and GPIB interfaces. The main software development tool is C language. This paper introduces theμC/OS embedded system and its method of transplant in detail, transplanting successfully inμC/OS system ported TCP/IP protocol and Web servers, achieving the function of 100M Ethernet, USB, serial interfaces. The platform can get access to remote servers through the browser, and control the remote devices. In the IEEE 1588 clock synchronization protocols, clock synchronization principle is explained in detail, and it initially realizes the clock synchronization message and the following message sending. In the design of the hardware trigger bus, it completes the schematic design of the bus and proposes the significance of eight individual hardware channels.