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 The Breker Trekker

Posts Tagged ‘use case’

Life on the Embedded-EDA Frontier

Wednesday, September 2nd, 2015

A month ago, our blog post on The Breker Trekker concerned life on the hardware-software frontier. We discussed the ever-shifting line between hardware and software and how we at Breker seem to be straddling that line as we generate embedded C/C++ test cases for hardware verification. Yesterday we published an article on the ongoing merger between the worlds of embedded systems and EDA. We made a number of observations about how the two industries are drawing closer together.

We didn’t talk about Breker in yesterday’s article, but today we’d like to connect these two threads and talk about how we are now straddling the increasingly fuzzy line between embedded and EDA verification. This is a topic we’ve discussed internally from time to time, and we have taken some steps into the embedded world by exhibiting at ARM TechCon and publishing articles in magazine and on sites geared toward embedded designers and programmers.

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Industry Drivers for DVCon India

Wednesday, August 12th, 2015

Many of our readers may recall that Breker aggressively promoted the inaugural DVCon India last year. We supported the show itself by sponsoring a booth in the exhibition and delivering three conference talks. It turned out, much to our delight, that that hottest topic at the show was portable stimulus. There was a great deal of interest in the newly formed Accellera Portable Stimulus Working Group (PSWG) and how Breker’s products provided a well-tested solution meeting all of the PSWG’s requirements.

The second DVCon India is less than a month away, on September 10-11 at Leela Palace in Bangalore. I have every expectation that portable stimulus will be a major theme again. We’re also very busy promoting the event to ensure its success, especially since I am co-chair of the Promotions Committee. I will be covering the details of the sessions and our own participation in next week’s blog post. For today, I’d like to focus on some of the industry drivers that are influencing the interest of potential attendees and the selection of content for the technical program.

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Life on the Hardware-Software Frontier

Wednesday, August 5th, 2015

In last week’s post, we spent quite a bit of time talking about the concept of a (realistic) use case that reflected how actual users will eventually manipulate the design being verified. Our focus was on Breker’s graph-based scenario models and how they can easily and concisely capture such use cases. We did some research on the term “use case” and found that it seems to be more common in software design and verification than in hardware verification. That caused us to think about how we at Breker seem to be living on the hardware-software frontier.

It’s not uncommon for hardware designers and software engineers to borrow ideas from each other. Code coverage, for example, was well established in software before it was adopted for hardware design and verification languages. With the move from gates to RTL, hardware became just another form of code and therefore more amenable to software techniques. This is just one example showing that the boundary between hardware and software is fuzzy and changing over time.

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Using Scenario Models to Capture Use Cases

Thursday, July 30th, 2015

One of the signs that a technological domain is still fairly young is frequently evolving terminology as the pioneers attempt to explain to the mainstream what problem needs to be solved and what solutions can be brought to bear on the problem. Such is the case with SoC verification. At Breker we used to start explaining what we do by talking about graphs, but shifted to “graph-based scenario models” to emphasize that graphs are perfect for expressing scenarios of real-world behavior.

Our friends at Mentor, also strong advocates for graphs, began using the term “software-driven verification” to describe their approach. We rather like this description, but feel that it can only be applied accurately when embedded test code is being generated and when the embedded processors are in charge of the test case. Now our friends at Cadence have been sprinkling the term “use case” throughout their discussions on SoC and system verification. Let’s try to sort out what all this means.

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