IEEE-1588 Software Design and Multi-core

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1588 Software Design and Multi-core

From a high level, IEEE-1588 software design and multi-core design and implementations consist of time-stamping hardware, protocol parsing software and filtering and clock correcting algorithm. The prior article mainly dealt with how the time-stamps were exchanged between master and its various slaves while the next article would deal with the related algorithms. This section deals… Read More

IEEE-1588 synchronization

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IEEE-1588 v2 Clock Recovery

In continuation of time-synchronization article series, conceptually, IEEE-1588 synchronization is as simple as if you were asking the time from somebody and (s)he replying after looking at his/her watch. You would then correct your watch accordingly. This is simply: Time to be set = Time told + some delay But this simplicity just ends here.… Read More

Synchronous Ethernet (SyncE)

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SyncE ESMC Packet Format

In simple terms, Synchronous Ethernet extends the use of a PLL (Phase locked loop) clock to transmit data. At a very crude level, this, and only this, is the whole conceptual working of Synchronous Ethernet. At the physical layer, two Ethernet peer nodes are already synchronized through a PLL for the RX (receiving) end. A PLL… Read More

Synchronization in Networks

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(Continuing from the previous post: “Clock Synchronization in Telecommunication Networks“…) Like layers in a network, time synchronization consists of two basic layers: Phase synchronization; and Frequency Synchronization (Read more about Synchronous / Asynchronous / Isochronous / Plesiochronous) It is extremely easy to grasp this concept by considering the day-to-day questions: Why do you always make… Read More

Time Synchronization in Telecommunication Networks

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Ques: How do we synchronize the clocks across nodes in a telecom network? Answer: Instead of relying on nodes “keeping” their own sense of time, the time is “distributed” across the network hierarchy. Two promising solutions: Synchronous Ethernet and IEEE 1588 are presented in this article as well as their “combination” to deal with the… Read More

Wireless Module for IoT – ESP8266

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ESP8266 WiFi module for IoT

This article is about using and programming a Wireless Module for IoT – ESP8266 for enhancing sensors (whether Temperature, Motion, Smoke etc) to send their telemetry data for aggregation and analysis for Internet of Things applications. One of the most widely available module/circuit for making a standard Hardware sensor talk over a network (or Internet)… Read More

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