The implementation of IEEE 1588 clock synchronization system based on FPGA

2014 ◽  
Author(s):  
Boqun Zhao ◽  
Ning Wang
Keyword(s):  
Clock Synchronization ◽  
Synchronization System ◽  
Ieee 1588

A Methodology for Remote Debug, Test and Maintenance Based on IEEE 1588

2011 ◽  
Author(s):  
Peter Ro¨ssler ◽  
Roland Ho¨ller ◽  
Martin Zauner
Keyword(s):  
High Precision ◽  
Clock Synchronization ◽  
Automotive Electronics ◽  
Mechatronic Systems ◽  
Ieee 1588 ◽  
Remote Testing ◽  
Synchronization Protocol ◽  
Precision Clock

This work describes a new methodology for the purpose of remote testing, debugging and maintenance of networked electronic and mechatronic systems which makes use of the IEEE 1588 high-precision clock synchronization protocol. After the underlying concepts of IEEE 1588 are briefly sketched, the paper describes how functionalities like testing, debugging and maintenance can benefit from a network-wide notion of time as provided by the IEEE 1588 standard. An implementation of the IEEE 1588 protocol with support for test, debug and maintenance as well as links to the integration of the proposed concept into existing tools are presented. Further, the proposed approach is discussed under consideration of recent standardization efforts. Finally, a case study from the area of automotive electronics is described.

The Research of IEEE 1588 Interface Module Based on LXI Instrument

2013 ◽  
Vol 846-847 ◽  
pp. 848-852
Author(s):  
Wang Chun Zhu ◽  
Xin Zhang
Keyword(s):  
Future Development ◽  
Clock Synchronization ◽  
Embedded Linux ◽  
Ieee 1588 ◽  
Accuracy Requirement ◽  
Interface Module ◽  
Hardware Clock ◽  
New Generation

LXI, which is generally recognized as the new generation of instrument bus technology, not only has developed rapidly in the field of test and measurement, but also has a vast potential for future development. At present, the LXI trigger requires the clock synchronization precision to reach a sub microsecond level or even higher one. Therefore, in order to meet this accuracy requirement, a scheme based on the embedded Linux and IEEE 1588 protocol is proposed in this paper on the basis of studying LXI so as to realize high accurate clock synchronization. This scheme acquires hardware timestamp by utilizing PHY chip DP83640 and realizes PTP hardware clock driving based on Linux. A synchronization test with Agilent B LXI trigger box under the current condition is conducted and about 100ns of synchronization precision can be reached when connected with cable directly. The result demonstrates the feasibility of the scheme and that the clock synchronization precision can reach a nanosecond level.

Research on Key Technology of Time Synchronization Network in Electric Power System

2015 ◽  
Vol 1092-1093 ◽  
pp. 332-336
Author(s):  
Hong Zhang Xiong ◽  
Xi Chen ◽  
Ling Teng ◽  
Qiang Gao ◽  
Yang Wang
Keyword(s):  
High Precision ◽  
High Performance ◽  
Large Scale ◽  
Time Synchronization ◽  
Clock Synchronization ◽  
Electric Power System ◽  
Normal Operation ◽  
Synchronization System ◽  
Performance Time ◽  
Precision Clock

Development of intelligent grid have increasing demands for time synchronization, high precision, large scale, high performance time synchronization system has become necessary guarantee for the normal operation of the power grid. This article introduced the composition of the time synchronization system, discusses the IEEE1588 implementation of high precision clock synchronization principle and SDH data transmission principle, analysis of the PTP protocol for transmission through the principle of the SDH E1 line, gives the networking scheme of PTP over the E1 way, which meet the precision requirement of 1 us.

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