<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>GPTP on 技术笔记</title><link>https://deguiliu.github.io/tech-notes/tags/gptp/</link><description>Recent content in GPTP on 技术笔记</description><generator>Hugo -- 0.168.0</generator><language>zh-cn</language><lastBuildDate>Mon, 19 Oct 2026 04:30:00 +0000</lastBuildDate><atom:link href="https://deguiliu.github.io/tech-notes/tags/gptp/index.xml" rel="self" type="application/rss+xml"/><item><title>PTP 传输模式怎么选: 单播、gPTP 与以太网直传</title><link>https://deguiliu.github.io/tech-notes/posts/performance/ptp_transport_modes/</link><pubDate>Mon, 19 Oct 2026 04:30:00 +0000</pubDate><guid>https://deguiliu.github.io/tech-notes/posts/performance/ptp_transport_modes/</guid><description>把单播、gPTP 和以太网直传拆成寻址、承载和 profile 三个维度，解释 PTP over Ethernet 与常说的 L2 是什么关系，并给出选型顺序、配置要点和四个实测场景的边界。</description></item><item><title>PTP 时间同步排查: 状态正常，业务时间为什么仍不可用</title><link>https://deguiliu.github.io/tech-notes/posts/performance/ptp_state_machine_field_troubleshooting/</link><pubDate>Mon, 19 Oct 2026 03:30:00 +0000</pubDate><guid>https://deguiliu.github.io/tech-notes/posts/performance/ptp_state_machine_field_troubleshooting/</guid><description>从设备显示同步正常、业务时间却仍有偏差的现象出发，先补 PTP、时间戳和 PHC 的背景，再交代示例设备的授时链路，拆解三个现场案例，最后讨论状态设计和跨进程状态管理。</description></item><item><title>PTP 网络模块设计: 车载传感器的授时链路</title><link>https://deguiliu.github.io/tech-notes/posts/architecture/ptp_network_module_design/</link><pubDate>Sun, 18 Oct 2026 20:35:00 +0000</pubDate><guid>https://deguiliu.github.io/tech-notes/posts/architecture/ptp_network_module_design/</guid><description>面向车载传感器（点云传感器、图像传感器等）的 PTP 网络模块设计：用嵌入式工程师能看懂的方式讲清硬件时间戳、器件计数到时间基准的映射、报文过滤、状态机、故障降级与验证清单。</description></item></channel></rss>