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Keeping Power Under Control

Nothing should be simpler than turning the power on and off. It’s just a switch. Switch it on; switch it off. Easy peasey. Right?

Well, not so fast. There ain’t just one power supply on a board anymore. These days you’ve gotta have in place a veritable cornucopia of power levels to satisfy all the finicky chips that are spreading like a bad mold across your boards. And the different power lines have different capacitances and different drivers, so that simply shutting the power down can conjure up images of leaves … Read More → "Keeping Power Under Control"

Verayo Leaves Tiny Fingerprints on Chips

How do penguins tell each other apart? For that matter, how to barnacles, or pigeons, or orangutans recognize each other (we know how dogs do it)? To our eyes, they all look pretty much the same.

The same could be said of FPGAs. Mass production is one of the hallmarks of the semiconductor industry, as identical chips stream off the production lines. Intel’s enormously successful manufacturing prowess revolves around the mantra, “copy exact.” Every Intel fab is just like every other Intel fab, and every chip is identical to every other chip. That& … Read More → "Verayo Leaves Tiny Fingerprints on Chips"

Disziplin Muß Sein*

Software development processes can vary dramatically. If you program only occasionally as a hobby, like me, then you dream up what you want to do and immediately start coding. Working units then randomly materialize and just as quickly disappear like quantum fluctuations. Moving into the more professional arena, if there is a process, it can vary from something light, agile, and extreme, where code is generated quickly and converges towards requirements using Brownian successive approximation, all the way to heavyweight rational processes with which you risk spending your entire career just reading the manual (understanding it would take even … Read More → "Disziplin Muß Sein*"

Low Cost Reconfigurable Computing Cluster Brings Millions of Reconfigurable FPGA Gates to Students

Building on commodity hardware and industry standard software programming methods, Baylor group architects a $10,000 reconfigurable computing cluster.

Accelerated computing – using programmable logic and other non-traditional processing resources to augment clusters – has become increasingly popular. Most recently, the NSF announced that $20,000,000 in funding is available for research groups to push beyond petascale computing. Accelerated computing represents the leading edge of the high performance computing wave, as evidenced by the world’s fastest supercomputer, the Roadrunner cluster located at Los Alamos National Labs. Roadrunner makes use of commodity processors coupled with … Read More → "Low Cost Reconfigurable Computing Cluster Brings Millions of Reconfigurable FPGA Gates to Students"

IP for Complex FPGAs

According to Gartner’s Jim Tulley, there are around 7,000 ASIC design starts a year, a number that is in slow decline. By way of contrast, there are around 100,000 FPGA design starts a year, of which 30,000 include a microprocessor of some kind.  Yet for eleven years at the IP conference in Grenoble, the leading get-together for IP suppliers and users, the only mention of FPGAs has been in the context of building blocks for ASIC prototyping tools or, more recently, for testing the market before undertaking the incredibly more costly task of building an ASIC.

Obviously, … Read More → "IP for Complex FPGAs"

Uncanny Resemblances

If you had all the time in the world, you could simulate an entire SoC using SPICE, but you don’t, so you can’t. At least not for digital circuits; analog is different, since detailed analysis is required there, and it’s not a billion transistors. And yet, even with digital, we can’t quite revert all the way to 1s and 0s, but we can start to use some abstraction in the form of library cells for basic circuit chunks like transistors, inverters, gates, and flip-flops. Those cells can be characterized using SPICE ( … Read More → "Uncanny Resemblances"

Is Free Too Good to be True?

A few weeks ago I wrote about model-based development in Modelling: not just for big boys? At the end of the article I said “So is modelling just for big boys? Well, I hate to say it, but unless companies change their views on an appropriate level of expenditure for tools, yes it is, today. However, I have heard that one company is planning an announcement that could change this scenario quite markedly. And if the rumour is true, there may soon be a tool that will … Read More → "Is Free Too Good to be True?"

Deep and Wide

We engineers are unusually comfortable with periodicity.  We find ourselves fooling around with frequency domain from the first days of our undergraduate education, and by the time we become practicing professionals, we whip in and out of Fourier’s follies with the facility of wild monkeys traversing the forest canopy.  We eat, drink, and breathe periodic waveforms.  We handle harmonics, passbands, s-planes, and corners with reckless abandon.  We own the spectrum.

When it comes to our own careers, however, some of us switch to DC … Read More → "Deep and Wide"

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