New Software Dev Tools Coming in 2019

Web technologies are growing very fast both in number and in developments. In fact, individuals and businesses are finding it hard to keep up with the speed. When new software development tools emerge, usually the old ones become gradually obsolete because new ones come with new and useful features. Therefore businesses should focus on new…… Read More

Real Time Systems

Introduction Here I would like to write about the simple fitness device project I had been working on. It is based on the course Real time Bluetooth Networks  in Edx. Objective To build  a fitness device which runs on a Real Time Operating System. Understanding of the types of schedulers and its implementation Creation of…… Read More

Inquisitive Mind – Dec 2017

A series of monthly knowledgeable and intelligent articles with links to interesting blogs entries, tools, and anything that interests an inquisitive mind. The Amazing $1 microcontroller: Very detailed and thorough blog article on specs, tools, environment about minimal costing micro-controllers from Atmel, Cypress, Freescale, Microchip, NXP, Renesas (my favorite), ST etc IP Header checksum: If…… Read More

What is Plesiochronous

In this short article and your next 2 minutes, you are going to learn “What is Plesiochronous” and (be careful – once you know it you cannot un-know it), you can brag about this concept (and this seemingly-complicated word) to your friends (and foes). So, what is it? What does Plesiochronous really mean and what…… Read More

Measures of synchronicity – Accuracy of Time

Although it is just easier to buy the equipment available to test the synchronism of two independent systems, we discuss here the measures of synchronicity – Accuracy of Time. The reader would thus be able to choose among the available products in market and appreciate them better (after having gone through the Synchronization basics and…… Read More

Comparison – SyncE, NTP, GPS, IEEE-1588

We, now have enough information to compare various synchronization methods after we went through the clock synchronization basics and the Synchronous Ethernet (SyncE), IEEE-1588 technologies. In this section we would look at various factors through which we can have a comparison – SyncE, NTP, GPS, IEEE-1588 and evaluate these technologies: Network Load: Sync-E works at…… Read More

IEEE-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

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)

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

(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

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