| 摘要: |
| 在分析IEEE 1588精确时间同步协议(PTP)原理的基础上，设计了包括最佳主时钟算
法和PTP协议的时钟同步模型。针对嵌入式Linux操作系统，提出了在Linux的网络驱动层
通过在收发以太网帧时完成时间戳的接收和添加的方法。实验结果表明，通过该方法能够达
到10 μs量级的同步精度，较好地实现了时钟同步的效果。 |
| 关键词: 嵌入式Linux 时间同步 PTP IEEE 1588 最佳时钟算
法 |
| DOI： |
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| 基金项目: |
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| Implementation of IEEE 1588 time synchronization under embedded Linux |
| YI Sheng-lan |
| () |
| Abstract: |
| The IEEE 1588 Precise Time synchronization Protocol(PT
P) is analysed, then a time synchronization model which includes the best master
clock
algorithm and PTP protocol is given. Based on Embedded Linux Operation System,
a method of adding time stamp when the MAC frame is received in the driver l
ayer is proposed. The experimental results show that this method meets the deman
ds of time
synchronization and 10 μs level synchronization precision can be achieved. |
| Key words: embedded Linux time synchronization PTP IEEE 1588 best master clock algorithm |
《电讯技术》编辑部 