1588 PTP

 AN1202: ITU-T Precision Time Protocol Grandmaster, Boundary Clock, and Slave Clock Mode (skyworksinc.com)

IEEE 1588原理及实现_wll1228的博客-CSDN博客_ieee1588

PTP最重要的兩個基礎公式

Mean Delay = [(T2-T1) + (T4-T3)] / 2

Offset = (T2-T1) - Mean Delay

           = [(T2-T1) - (T4-T3)] / 2