News

Actel's Three-Legged Stool

They say good things come in threes: the Three Stooges, triple plays, the first Star Wars movies, two halves of a six-pack. Now FPGA maker Actel adds another happy trio: SmartFusion.

Actel’s triple play is a new chip that combines the three things most embedded designers need: a microprocessor, an FPGA, and analog circuitry. The company calls the conglomeration SmartFusion on the theory that it fuses three disparate features into one device.

Processors in FPGAs aren’t new, but they’re not always successful. The big FPGA companies have done it before, and every engineering undergrad has probably tried stuffing a microcontroller into an FPGA at some point. The result is usually awkward, power-hungry, slow, and expensive. Programmable logic just isn’t a good match for the resources that a processor requires.

 

Microchip Maxes Out Might Mites

For a silicon company, Microchip has the best brand name ever. Even your grandmother knows what a “microchip” is, even if she isn’t clear on what they do. Like Scotch tape, Xerox copiers, and Kleenex snot rags, Microchip has built-in name recognition. (Insider trivia: here in the publishing business we get letters from trademark lawyers gently reminding us not to use words like Coke, Xerox, and Kleenex as generic nouns. A weird one came from a certain agricultural firm to remind me not to call tractors “caterpillars;” does anyone really do that?)

Microchip’s biggest challenge isn’t protecting its brand name but keeping its complex product line straight. At last count, I think the company made 3.72 zillion different kinds of microcontrollers. They’ve abandoned any semblance of meaningful names or part numbers for them all; I think they just assign a serial number at birth and call it good.

 

   

ARM Cortex-M4 Stirs the Soup

It’s a floor wax! It’s a dessert topping! It’s the Cortex-M4!

As if ARM’s pantry of microprocessors weren’t already well stocked, now there’s another tasty treat to squeeze on the shelf. The Cortex-M4, revealed just yesterday, combines ingredients from the popular M3 microcontroller with a helping of goodies from the ARM9 and ARM11. The resulting confection is a microcontroller/DSP combination that should suit the tastes of embedded designers the world over.

As its name suggests, the new M4 is part of ARM’s low-end microcontroller range of 32-bit CPU cores that run the new(-ish) Thumb2 instruction set. Like other M-series processors, the M4 is intended for fairly low-cost chips in the $2–$15 range. Indeed, the first M4-based chip from NXP is due out late this year and will likely be priced right around $5 in volume.

 

"Black Hat" PC Security Hack Is No Big Deal

Chalk one up for sensationalist journalism.

A new Associated Press article article describes, in somewhat breathless terms, how security consultant Chris Tarnovsky "cracked" the security chip found in most PCs. According to the article, this will lead to widespread identity theft, lost passwords, stolen military secrets, and more.

Although the details of Tarnovsky's exploits are accurate, the fallout is not. In reality, this is no big deal. Here's the background.

Read more: "Black Hat" PC Security Hack Is No Big Deal

   

Hetero Unions and Changing Your Name

A real-time operating system (RTOS) used to be just a tiny microkernel of code. Nowadays they’re growing into fully featured operating systems with their own development tools and third-party support. Just a few months ago, Intel paid $884 million in cash to acquire RTOS vendor Wind River Systems. Clearly, we've moved beyond a few kilobytes of microkernel code.

Another case in point is QNX, makers of the popular Neutrino RTOS. With help from desktop-software heavyweight Adobe, QNX ported Adobe’s ubiquitous Flash software to Neutrino. Now you can have Flash animation on your embedded systems, at least so long as you’re using Neutrino. It’s an interesting match.

 

Analog Devices and Your Digital BFF

Circling silently beneath the murky waters of the Gulf of Mexico, a solitary fin breaks the surface; then two, then three. Panicked swimmers paddle for the shore, anxious to distance themselves from the threat. Watch out! It’s a Blackfin!

Yankee chipmaker Analog Devices has released a school of Blackfin chips, causing mayhem in parts of Texas. These once-placid waters were TI’s territory. Now that dominance is under threat as a newer and hungrier challenger threatens to take a bite out of the market leader.

Meanwhile, back on dry land, we have three new processor chips to consider. They’re called the Blackfin BF500 family, and they’re brand new today. They’re cheap ($5 to $13 in quantity), they’re fast (300-400 MHz), and they come in three flavors.

   

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