tag: debug

A Formal Transformation
By Brian Bailey - 24 Mar, 2016 - Comments: 0

A very important change is underway in functional verification. In the past, this was an esoteric technology and one that was difficult to deploy. It was relegated to tough problems late in the verification cycle, and it was difficult to justify the ROI unless the technology actually did find some problems. But all of that has changed. Formal verification companies started to use the technology... » read more

Seeing Debug for What It Is
By Neil Johnson - 29 Feb, 2016 - Comments: 0

Debug is problem solving. For many hardware developers, debug is a purpose. Finding a bug is a victory! Heck, debug can be flat out heroic. I’m sure we can all think back to colleagues that put in a few 80 hour, coffee fueled weeks, with managers peering over both shoulders, to fix an insidious string of bugs that threatened to further demolish a broken schedule and sabotage tape-out. W... » read more

Getting Formal About Debug
By Brian Bailey - 25 Feb, 2016 - Comments: 0

While much of the design and verification flows have been automated, debug remains the problem child. It has defied automation and presents a management nightmare due to the variability of the process. In recent articles about debug, we examined how much time development teams spend in the debug process and some of the reasons why it is becoming a bigger problem. This includes issues such as ex... » read more

UVM: It’s Organized And Systematic
By Henry Chan - 25 Feb, 2016 - Comments: 0

One of the reasons I like using UVM is its tendency toward an organized structure and uniformity. Some may find it annoying to adhere to such a strict format in UVM, but I think it’s a good way to keep the basics of UVM engrained in your brain. You always want a good foundation and development of strong fundamentals in any endeavor. Verification is no different and UVM hammers the fundamental... » read more

Debug: Last Bastion Of Automation
By Brian Bailey - 27 Jan, 2016 - Comments: 0

There have been a number of times when anecdotal evidence became folk law and then over time, the effort was put in to find out whether there was any truth in it. Perhaps the most famous case is the statement that verification consumes 70% of development time and resources. For years this “fact” was used in almost every verification presentation and yet nobody knew where the number had come... » read more

Who’s Profiting From Complexity
By Ed Sperling - 21 Dec, 2015 - Comments: 0

Tool vendors' profits increasingly are coming from segments that performed relatively poorly in the past, reflecting both a rise in complexity in designing chips and big improvements in the tools themselves. The impacts of power, memory congestion, advanced-node effects such as process variation, [getkc id="160" kc_name="electromigration"] and RC delay in [getkc id="36" kc_name="interconnect... » read more

When Order Matters
By Mentor, a Siemens Business - 17 Dec, 2015 - Comments: 0

Debugging DP errors can be not only time-consuming, but also frustrating, when new errors seem to appear out of nowhere. The order in which you address DP errors can make a significant difference in the efficiency of your debug efforts. Learning the sequence of ordered DP debugging explained in this white paper can not only help you reduce the time you spend analyzing and fixing DP errors, but ... » read more

You’re Not Alone
By Srinivas Velivala - 19 Nov, 2015 - Comments: 0

All too often we get caught up in our own work and our own issues, thinking no one else could possibly be having as much trouble as we are. The reality is that many, if not most, of the problems and challenges in IC verification are not unique to one design, one team, or one person. The natural reluctance of people to admit they are struggling with some aspect of their job often keeps them from... » read more

UltraSoC: Debug IP
By Ed Sperling - 03 Nov, 2015 - Comments: 0

The background noise across the engineering community is rising with the growing complexity of SoCs. While the big news several years ago was the introduction of chips with 1 billion transistors, that's no longer making headlines. There are now well over 1 billion transistors in advanced SoCs and more than 100 IP blocks. Even abstractions are beginning to break down (see related story). Ent... » read more

You Can’t Walk Straight Blindfolded
By Tom De Schutter - 29 Oct, 2015 - Comments: 0

Let’s examine the first part of the title of this blog. It is stated as a given. But is it true that you really can’t walk straight when blindfolded? That is what my children and I set out to investigate one sunny afternoon in October (yes we live in California). We looked for a nice open field with little to no surrounding sound, so that you cannot use the sound to set your bearing. We ... » read more

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