What a Difference an Architecture Makes: Optimizing AI for IoT

What a Difference an Architecture Makes: Optimizing AI for IoT
by Bernard Murphy on 05-28-2020 at 6:00 am

HLS PPA results

Last week Mentor hosted a virtual event on designing an AI accelerator with HLS, integrating it together with an Arm Corstone SSE-200 platform and characterizing/optimizing for performance and power. Though in some ways a recap of earlier presentations, there were some added insights in this session, particularly in characterizing… Read More


Design in the Time of COVID

Design in the Time of COVID
by Bernard Murphy on 05-26-2020 at 6:00 am

Fortune teller

There’s a lot of debate about how and when we are going to emerge from the worldwide economic downturn triggered by the pandemic. Everyone agrees we will emerge. This isn’t humanity’s first pandemic, nor will it be our last. But do we come out quickly or slowly? And what does the economy look like on the other side, particularly for … Read More


Atos Crafts NoC, Pad Ring, More Using Defacto

Atos Crafts NoC, Pad Ring, More Using Defacto
by Bernard Murphy on 05-21-2020 at 6:00 am

Mont Blanc

I’ve talked before about how Defacto provides a platform for scripted RTL assembly. Kind of a rethink of the IP-XACT concept but without need to get into XML (it works directly with SV), and with a more relaxed approach in which you decide what you want to automate and how you want to script it.

They’re hosting a webinar on May 28th 10-11am… Read More


Is Mutation Testing Worth the Effort? Innovation in Verification

Is Mutation Testing Worth the Effort? Innovation in Verification
by Bernard Murphy on 05-19-2020 at 6:00 am

innovation

Mutation testing is an intriguing idea, but is it useful? Paul Cunningham (GM of Verification at Cadence), Jim Hogan and I continue our series on novel research ideas, here looking at a paper examining the pros and cons of this topic. Feel free to comment if you agree or disagree.

The Innovation

This month’s pick is Which Software Read More


The Problem with Reset Domain Crossings

The Problem with Reset Domain Crossings
by Bernard Murphy on 05-14-2020 at 6:00 am

Reset button

Design complexities in reset, like everything else in big SoC designs, has become incredibly complex, for all sorts of reasons. Long, long ago reset was something you just did once, when you turned the power on. Turn on, then hold reset for some amount of time until everything is in a known starting state, and off you go. Nice and simple.… Read More


3 Steps to a Security Plan

3 Steps to a Security Plan
by Bernard Murphy on 05-12-2020 at 12:00 am

cybersecurity

Assessing the security of a hardware design sometimes seems like a combination of the guy looking under a streetlight for his car keys, because that’s where the light is (We have this tool, let’s see what problems it can find) and a whack-a-mole response to the latest publicized vulnerabilities (Cache timing side channels? What… Read More


Ultra-Low Power Inference at the Extreme Edge

Ultra-Low Power Inference at the Extreme Edge
by Bernard Murphy on 05-07-2020 at 6:00 am

Intelligent IoT

I wrote last year about Eta Compute and their continuously tuned dynamic voltage-frequency scaling (CVFS). That piece was mostly about the how and why of the technology, that in self-timed circuits (a core technology for Eta Compute) it is possible to continuously vary voltage and frequency, whereas in conventional synchronous… Read More


Accellera Tackles Functional Safety, Mixed-Signal

Accellera Tackles Functional Safety, Mixed-Signal
by Bernard Murphy on 05-05-2020 at 6:00 am

Accellera

I managed a few meetings at DVCon this year in spite of the Coronavirus problems. One of these was with Lu Dai Chairman of Accellera. I generally meet with Lu each year to get an update on where they are headed, and he had some interesting new topics to share.

Membership and headcount remain pretty stable. Any changes (at the associate… Read More


Radiation Tolerance. Not Just for ISO 26262

Radiation Tolerance. Not Just for ISO 26262
by Bernard Murphy on 04-30-2020 at 6:00 am

Satellite

Years before ISO 26262 (the auto safety standard) existed, a few electronics engineers had to worry about radiation hardening, but not for cars. Their concerns were the same we have today – radiation-induced single event effects (SEE) and single event upsets (SEU). SEEs are root-cause effects – some form of radiation, might be… Read More


AI, Safety and Low Power, Compounding Complexity

AI, Safety and Low Power, Compounding Complexity
by Bernard Murphy on 04-28-2020 at 6:00 am

Hoc in a low-power ASIL-D design

The nexus of complexity in SoC design these days has to be in automotive ADAS devices. Arteris IP highlighted this in the Linley Processor Conference recently where they talked about an ADAS chip that Toshiba had built. This has multiple vision and AI accelerators, both DSP and DNN-based. It is clearly aiming for ISO 26262 ASIL D … Read More