Research and Implementation of Clock Synchronization Technology Based on PTP
Kexin Yuan, Xuebing Guo, Jianying Tian · Journal of Physics Conference Series · 2021
Abstract With the rapid development of power system, the requirement of network clock synchronization accuracy is becoming higher and higher, in many cases, it needs to reach microsecond level. In order to meet the increasing demand, based on the analysis of the basic principle of PTP clock synchronization protocol, a physical layer clock synchronization system based on STM32 MCU and DP83640 chip is proposed. The system synchronization time error is less than 1 microsecond by using the timeacc-007 time precision measuring instrument. The scheme meets the requirements of accurate clock synchronization for all distributed nodes in the power system.