Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
Bert22306
User Rank
Author
Proprietary protocols
Bert22306   5/14/2014 4:36:32 PM
NO RATINGS
Absolutely! This topic of rolling your own, vs. using an existing standard, came up in a recent article by Junko Yoshida as well.

We very much created our own protocols, and entire digital networks, before standard ones were good enough to do what we were building. The fun part of the job is to keep track of the ongoing standards efforts, and then adopt (and adapt) the successful ones when it makes sense to do so, while still retaining compatibility with the proprietary protocols that came before.

Ultimately, for our work, adopting standards allows you to improve the products more rapidly. Because you're leveraging off the work of thousands of smart designers all over the world. However that wasn't the situation at the beginning. For my work, this has been true for protocols and also for hardware.

antedeluvian
User Rank
Author
Re: Proprietary protocols
antedeluvian   5/16/2014 8:47:52 AM
NO RATINGS
Bert

Thanks for your input.

The fun part of the job is to keep track of the ongoing standards efforts, and then adopt (and adapt) the successful ones when it makes sense to do so, while still retaining compatibility

the thought occurs to me that on rare occasions this goes the other way, when a proprietary bus is standardised. I'll bet every standard of early serial bus started that way. GIven the structure of Modbus, you can just feel the evolution from a single purpose idea into the general purpose standard.

 

Anybody out there had their bus/protocol become a standard?

Bert22306
User Rank
Author
Re: Proprietary protocols
Bert22306   5/16/2014 4:05:08 PM
NO RATINGS
That too, actually, or "almost." In our case, in 1999 or so, we had to develop an actively redundant link layer protocol, for high speed, high survivability networks. Lo and behold, in 2010, IEC 62439-3 is created: Parallel Redundancy Protocol. It's not identical to ours, and I much prefer our approach for a couple of reasons (nothing like developing your own to understand the advantages and disadvantages of other approaches you had to explore in the process), however overall, the way it works is the same. The differences are in flexibility of the link layer topology and in maximum speed the protocol can support.



Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...