Articles – Page 535

Evaluating a Design Data Management System

February 24, 2009

Evaluating any EDA tool has several challenges. You have several tools and vendors to choose from. You have to get past the marketing hype to determine what is really important to you and whether the supported feature set meets your requirements. Finally, you have to make sure that the features you need perform as advertised. And, of course, you have to do this evaluation while juggling all your other tasks.

Evaluating … Read More → "Evaluating a Design Data Management System"

Acquiring More Addicts

Easing into Formal Verification

by Bryon Moyer

February 24, 2009

Last summer we took a look at the fact that formal verification is seeing something of a repositioning and resurgence. The holiest of holies is the ability to verify that all possible use cases of a piece of logic have been specified and that all possible outcomes of those use cases have been verified to operate as desired.

It can be viewed as a big jump from no formal verification to the complete set; it’ … Read More → "Acquiring More Addicts"

Penguins, Bees, Cathedrals and Wikis

The Changing Face of Open Source and Collaboration

by Dick Selwood

February 24, 2009

This was going to be such a simple piece: a quick look at some of the developments in the use of open source in the embedded arena, a quick update on Eclipse, perhaps a comparison of the positive and negative aspects of open source compared with proprietary tools, and a final summary.

Unfortunately, I began to become more and more aware that the open source landscape is changing and that a new paradigm is appearing. The Oxford English Dictionary defines paradigm as “a pattern or model, an exemplar.” I am using it here, not in … Read More → "Penguins, Bees, Cathedrals and Wikis"

Lattice Strikes Back

Low-cost, Low-power with SerDes - New ECP3

by Kevin Morris

February 24, 2009

When Xilinx and Altera made their recent announcements of new low-cost, SerDes-havin’ FPGA families, we pointed out that Lattice Semiconductor had started this pie-fight a couple of years back when they introduced ECP2M – the first low-cost FPGA platform with multi-gigabit serial transceivers. Now that they have taunted the two bigger players into the melee, Lattice is raising the stakes with a brand-new family that boasts more performance, higher density, less power, and more on-chip memory than its sand-kicking predecessor.

The new ECP3, fabricated on Fujitsu’s … Read More → "Lattice Strikes Back"

Standardising on Analogue

by Dick Selwood

February 17, 2009

Have you ever wanted to spend vast amounts of time in a conference room, real or virtual, arguing about the precise meanings of words? Trying to accommodate the strongly expressed and sometimes incompatible views of people, some of whom know less than they think they do about the subject in hand, a subject you are knowledgeable on and feel strongly about? When you have reached a conclusion, are you then happy to sit back for months, while even more people express even more views on how you got it wrong, how what has emerged doesn’t meet the … Read More → "Standardising on Analogue"

Software Archeology

Modernizing Old Systems

by Bryon Moyer

February 17, 2009

They’d been digging for only a couple weeks, with laborious care to make sure they didn’t inadvertently destroy that which had lain in quiet repose for centuries. Even so, the outlines of a once-thriving community were starting to reveal themselves. The job right now was to remove the dirt – and only the dirt – and then map out the structures and artifacts as they found them. Creating an outline of the habitation was more or less straightforward – anyone with a reasonably organized mind could come in and identify walls, openings, firepits, and … Read More → "Software Archeology"

Mind the Gap

Taray Bridges Boards and FPGAs

by Kevin Morris

February 17, 2009

Printed circuit board (PCB) design software is one of the oldest segments of electronic design automation (EDA). Long before people were doing synthesis, formal verification, HDL simulation, or most of the other modern design automation processes, tools were around that helped us automate the design and layout of our PCBs. Today’s PCB tools carry the legacy of that long history – both conceptually and, in some cases, literally. Some of today’s PCB tools still carry pre-historic code that was developed long before… well, before FPGAs came along, for example.

Why should we care … Read More → "Mind the Gap"

Maximizing Flash Lifetimes

A Look at Flash Management Strategies

by Bryon Moyer

February 10, 2009

Flash memory is cool to keep around because it’s non-volatile, it’s small, it’s convenient, and, dressed up in all manner of stickwear, well, who can deny that it’s just so darn cute. But peel back those outer attractive layers, and you find much complexity lurking within. For, while we like to think of them as just another memory that we can plug into our PCs, in fact they’re nothing like it. A surprising amount of work goes into writing and reading the gotcha picture you took of grandma stashing … Read More → "Maximizing Flash Lifetimes"

Cleaning Up the Garbage

by Bryon Moyer

February 10, 2009

Angie was a project manager, and she managed a lot of projects. These were fast-moving jobs that required a lot of attention to make sure everything went smoothly. While she tried as hard as she could to plan out as many project details as possible, she knew from painful experience that unexpected things happen and that following a static script didn’t work. She had to keep track of things “in real time,” noting action items carefully to make sure everything got done.

Over time, she had become increasingly sophisticated in her ability to … Read More → "Cleaning Up the Garbage"

Serial Soirée

Altera Tempts with Tons of Transceivers

by Kevin Morris

February 10, 2009

The age of mainstream 40nm FPGAs has now arrived.

Last May, Altera announced the first-ever 40nm FPGA family – Stratix IV. Last quarter, that announcement became a practical reality as the company began shipping Stratix IV devices to customers. Last week, in dueling announcements, Altera announced their second wave of Stratix IV devices, while Xilinx rolled out their new Virtex-6 and Spartan-6 families. Across all of these announcements, one thing is clear. The race for supremacy in the 40/45nm process node for FPGAs focuses on the proliferation of high-speed serial I/O. </ … Read More → "Serial Soirée"