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Coverage from Running SoC Silicon? How Is That Possible?

Tuesday, April 1st, 2014

In our last post, we discussed some details of the demo that we showed at the DVCon and SNUG Silicon Valley events, in which TrekSoC-Si generated a test case, downloaded it into a commercial SoC (a TI OMAP4430 with dual ARM cores), and ran it in the actual chip. Our focus last time was on Breker’s unique visualization for the multi-threaded, multi-processor test cases that we generate. Specifically, we provide the same display for a test case running in silicon as we do for one running in simulation or simulation acceleration.

Even more interesting is our ability to display coverage information for test cases running in silicon. You might think that this is impossible unless we’re building coverage structures into the SoC that you fabricate. Customers have been known to build specific types of coverage metrics into their hardware, for example real-time monitoring of bus bandwidth and SoC performance. But that’s not what we’re doing; we can gather highly accurate system-level overage without changing the design a bit.

(more…)

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