tag: verification

Confusion Persists In Verification Terms
By Brian Bailey - 27 Aug, 2020 - Comments: 7

I find it amazing that an area of technology that attempts to show, beyond a reasonable doubt, that a design will work before it is constructed can be so bad at getting some basic things right. I am talking about verification terminology. I have been in this industry for over 40 years and it is not improving. In fact, it is getting worse. The number of calls I have with people where they hav... » read more

The Power Of Visualization
By Hagai Arbel - 27 Aug, 2020 - Comments: 2

In the 1990s, the National Semiconductor Israeli site in Herzliya was responsible for the design and verification of the company’s flagship RISC processor. That was the place and the time when the concept of constraint-random, abstract, coverage-driven verification was born. Engineers realized that without a random generation of stimuli opcodes, it would be very hard to fully verify new pr... » read more

Challenges In Using AI In Verification
By Ann Mutschler - 27 Aug, 2020 - Comments: 0

Pressure to use AI/ML techniques in design and verification is growing as the amount of data generated from complex chips continues to explode, but how to begin building those capabilities into tools, flows and methodologies isn't always obvious. For starters, there is debate about whether the data needs to be better understood before those techniques are used, or whether it's best to figure... » read more

Radio Frequency Technology Is Found Everywhere In Daily Life
By Greg Curtis - 27 Aug, 2020 - Comments: 0

By Greg Curtis and YuLing Lin Innovation is everywhere around us. From high-performance computing, communications, autonomous driving, and the Internet of Things (figure 1), each segment has led to a rapid increase in design innovation. This innovation has been particularly true in communications, as Radio Frequency (RF) technology is found everywhere in daily life. RF technology is critical... » read more

How UVM Callbacks Simplify Assertion Validation
By Akshay Sarup - 13 Aug, 2020 - Comments: 0

By Akshay Sarup and Mark Olen Assertions bring immediate benefits to the whole design and verification cycle; thus any challenges engineers face in coding and testing them are worth resolving. When a large number of assertions are to be validated, callbacks save time by eliminating the need to code a new sequence for each scenario. Callbacks also provide more dynamic and fine-grained cont... » read more

PCIe Simulation Speed-Up Using Mentor QVIP With PLDA PCIe Controller For DMA Applications
By Mentor, a Siemens Business - 12 Aug, 2020 - Comments: 0

In this case study, PLDA explains how verification engineers can use Mentor’s Questa Verification IP (QVIP) to improve productivity during the functional verification of PCIe designs with DMA engines. The flexibility of Questa VIP was key to creating custom testbenches from scratch that can dynamically adapt to different IP topologies and configurations, mixing PCIe interfaces with multiple A... » read more

Problems And Solutions In Analog Design
By Ann Mutschler - 05 Aug, 2020 - Comments: 1

Advanced chip design is becoming a great equalizer for analog and digital at each new node. Analog IP has more digital circuitry, and digital designs are more susceptible to kinds of noise and signal disruption that have plagued analog designs for years. This is making the design, test and packaging of SoCs much more complicated. Analog components cause the most chip production test failures... » read more

Creating Better Models For Software And Hardware Verification
By Ed Sperling - 04 Aug, 2020 - Comments: 1

Semiconductor Engineering sat down to discuss what's ahead for verification with Daniel Schostak, Arm fellow and verification architect; Ty Garibay, vice president of hardware engineering at Mythic; Balachandran Rajendran, CTO at Dell EMC; Saad Godil, director of applied deep learning research at Nvidia; Nasr Ullah, senior director of performance architecture at SiFive. What follows are excerpt... » read more

The Evolution Of Digital Twins
By Brian Bailey - 03 Aug, 2020 - Comments: 1

Digital twins are starting to make inroads earlier in the chip design flow, allowing design teams to develop more effective models. But they also are adding new challenges in maintaining those models throughout a chip's lifecycle. Until a couple of years ago, few people in the semiconductor industry had even heard the term "digital twin." Then, suddenly, it was everywhere, causing confusion ... » read more

Pivoting Toward Safety-Critical Verification In Cars
By Ann Mutschler - 31 Jul, 2020 - Comments: 1

The inclusion of AI chips in automotive and increasingly in avionics has put a spotlight on advanced-node designs that can meet all of the ASIL-D requirements for temperature and stress. How should designers approach this task, particularly when these devices need to last longer than the applications? Semiconductor Engineering sat down to discuss these issues with Kurt Shuler, vice president of... » read more

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