Corner-Case Bug Hunting for RISC-V

By Ashish Darbari - 30 Sep, 2024 - Comments: 0

By Ashish Darbari and Ia Tsomaia RISC-V continues to make headlines worldwide, but verification continues to be challenging. The findings of the Wilson Research Report, 2022 (see figure 1) make the trends in verification clear. We presented these in a keynote talk titled, "Future is Formal," at the recent DVCon India event. One thing is quite apparent: whether you are using directed tests... » read more

Debugging Embedded Applications

By Ann Mutschler - 10 Nov, 2021 - Comments: 0

Debugging embedded designs is becoming increasingly difficult as the number of observed and possible interactions between hardware and software continue to grow, and as more features are crammed into chips, packages, and systems. But there also appear to be some advances on this front, involving a mix of techniques, including hardware trace, scan chain-based debug, along with better simulation ... » read more

Hardware-Software Co-verification (ARM CPU)

By Vtool - 26 May, 2021 - Comments: 0

In every complex SoC verification process, it is necessary to activate the CPUs during verification and to check the operation of the software they execute alongside the test’s scenarios. At a minimum, basic scenarios such as “boot rom execution” are tested, but in many cases, further scenarios are required. The CPUs themselves are usually proven IPs, but in order to verify their integrat... » read more

Find Bugs Early: On-The-Fly Code Correction For Design And Verification Productivity

By Kiran Vittal - 25 Mar, 2021 - Comments: 0

The key rule for chip design and verification is that bugs must be found and fixed as early in the development process as possible. It is often said that catching a bug at each successive project stage multiplies the cost by ten. Bugs that escape verification and make their way to silicon are very expensive and time-consuming to fix. The ideal is to catch as many types of issues as possible as ... » read more

Verification Convergence: Problem Definition

By Hagai Arbel - 30 Nov, 2020 - Comments: 0

A while ago, I had to go to the ER with my friend who suddenly had a numb feeling in his face. He felt okay (and everything else is okay with him), but better be safe than sorry. While the doctor examined him I noticed that before tracing the problem itself, she asked some questions to rule-out a problem she was already familiar with and that can manifest itself in similar ways. Only then, a... » read more

IoT Debugging Crosses The Hardware-Software Divide

By Paul Hill - 09 Apr, 2020 - Comments: 0

By Paul Hill and Gordon MacNee Debugging is an important part of embedded design; one that necessarily crosses the hardware/software divide. At a system level, the functionality of an embedded design is increasingly defined by firmware, so avoiding bugs requires engineers with specific disciplines to work closely together during the design phase of a project. It can also mean resisting the u... » read more

Utilizing More Data To Improve Chip Design

By Ann Mutschler - 28 Mar, 2019 - Comments: 0

Just about every step of the IC tool flow generates some amount of data. But certain steps generate a mind-boggling amount of data, not all of which is of equal value. The challenge is figuring out what's important for which parts of the design flow. That determines what to extract and loop back to engineers, and when that needs to be done in order to improve the reliability of increasingly com... » read more

How To Build Functional Safety Into Your Design From The Start

By Antonio Priore - 21 May, 2018 - Comments: 0

The focus on functional safety IP is rapidly growing and we’re seeing this growth not just in automotive but in many other markets including, avionics, medical, industrial and railways, where systems need to efficiently identify and mitigate the occurrences of faults, and where more confidence is required with respect to the design practises employed for the development of IP. Currently, m... » read more

Getting A Handle On RTL X-Verification Challenges

By Graham Bell - 27 Mar, 2014 - Comments: 1

The problem logic designers have with X’s is that RTL simulation is optimistic in behavior and this can hide real bugs in your design when you go to tapeout. Some engineers point out that we have always had to deal with X’s and nothing has really changed. In fact, today’s SoC employ different power management schemes that wake-up or suspend IP. As any designer knows, when powering ... » read more

When Order Matters

By David Abercrombie - 20 Mar, 2014 - Comments: 0

Do you brush your teeth before dinner? Put on your shoes before going to bed? Iron your clothes before you wash them? Okay, forget that last one. No one irons clothes anymore…do they? Anyway, my point is, if you want to achieve the best results from a process, order can be really important. And so it is with double patterning (DP) error debugging. As I’ve discussed, there are many types ... » read more

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Knowledge Centers
Entities, people and technologies explored

Shift Left Is The Tip Of The Iceberg

A transformative change is underway for semiconductor design and EDA. New languages, models, and abstractions will need to be created.

by Brian Bailey

Partitioning In The Chiplet Era

Understanding how chiplets interact under different workloads is critical to ensuring signal integrity and optimal performance in heterogeneous designs.

by Ann Mutschler

3.5D: The Great Compromise

Pros and cons of a middle-ground chiplet assembly that combines 2.5D and 3D-IC.

by Ed Sperling

AI’s Role In Chip Design Widens, Drawing In New Startups

Focus is on letting engineers do much more with the same or fewer resources — and less drudgery.

by Karen Heyman

Key Technologies To Extend EUV To 14 Angstroms

Alongside high-NA EUV will be better-performing photoresists, reduced roughness using passivation and etch, and lateral etching to reduce tip-to-tip dimensions.

by Laura Peters

Memory Fundamentals For Engineers

eBook: Nearly everything you need to know about memory, including detailed explanations of the different types of memory; how and where these are used today; what's changing, which memories are successful and which ones might be in the future; and the limitations of each memory type.

by The SE Staff

What Comes After HBM For Chiplets

The standard for high-bandwidth memory limits design freedom at many levels, but that is required for interoperability. What freedoms can be taken from other functions to make chiplets possible?