Accuracy, Waveforms, And Power

The entire topic of power analysis, estimation, and exploration never ceases to amaze me given that opinions on how to approach this are so varied. It is that diversity of opinions that makes it that much more intriguing. I’ve been particularly interested in how I now regularly hear that users are increasingly interested in taking activity from simulation and emulation and using that to dr... » read more

Accuracy Is Relative

I've been doing some thinking on the concept of accuracy lately in my article, Does Power Analysis Need To Be Accurate? And, I’ve come to the conclusion that there isn’t a single conclusion to be had. Accuracy is very relative to the task at hand, as well as the use case, and the very specific power requirements. And maybe the focus shouldn't be always on the accuracy, but on what the chan... » read more

Power Confounds, Challenges

I have to admit I’m always surprised to hear that design teams are not using tools to the fullest extent possible, leaving valuable power saving opportunities on the table, until I remember how daunting it is to get it all right without tremendous experience, expertise, and the right tools. I’m also always fascinated to learn about less-obvious effects from power. To this point, Aveek... » read more

Simulation To Protect Us

I hate to say I told you so, but, I told you so. Back in 2011, I wrote this article, Cell Phone Radiation: Taboo Topic, Interesting Science, and have since kept my eyes open for proof of what I’ve feared for some time now: that our bodies may be adversely affected by the radiation emitted by everything from the myriad electronic devices we carry close to our heads and bodies to WiFi hotspo... » read more

It’s All About The Data

Ah, the wonders of math and physics — they do make the world go ‘round, do they not? And even in the world of chip design, of course, it is the fundamental understanding of the physics of electricity, materials, metals, etc., that it is all possible. I just wanted to stop for a moment to marvel at how those fundamental understandings of the math and physics of things have been abstracted... » read more

Are Models Always The Answer?

Given the shift to system level design and the need to make tradeoffs early in the design process, much emphasis is placed on modeling, and for good reason. Tobias Bjerregaard, CEO of Teklatech reminded that power integrity analysis and signal integrity analysis evolved to be more or less a checkmark from many companies. “They run it and then say, ‘OK, it is fine,’ but they don't think... » read more

Keeping NFCs Secure

Short-range communications, including near-field and semi-near-field communications such as Bluetooth, AirDrop, and Zigbee, have become as much a part of our daily lives as our mobile devices. Through some incredible engineering and standards efforts, they have achieved low-power communication over short distances with remarkable accuracy and consistency. But as even more devices begin tapping ... » read more

Where We Go From Here

It is hard to argue against the evidence that the dynamics of modern software in embedded systems are making it nearly impractical for traditional approaches of cycle based simulation or emulation to survive as they’ve been while truly meeting the needs of hardware/software design teams. While it is not a topic the EDA companies are completely comfortable addressing directly, the fact is t... » read more

Why Build New Silicon?

You can’t turn around these days without hearing talk of our increasingly connected lives, tethered by the Internet of Everything (IoE), and cloud this, cloud that. Don’t get me wrong, I’m not knocking this next big thing because on many levels it is inspiring creativity, as all big things do. And the ramifications are still getting worked out as far as the impact on chip design, and t... » read more

The Power Of Software

There is no argument about the increasing importance of software in system designs today, given the intimate and integral role it plays in directing the very hardware it is co-designed with. There is also a very good case for certain kinds of software that lend themselves more to certain types of processors. This, of course, depends on what is meant by the type of processor, asserted Coli... » read more

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