Enhancing Early Static FSM

Enhancing Early Static FSM
by Alex Tan on 08-08-2018 at 12:00 pm

Finite state machines (FSMs) are widely adopted as part of reactive systems to capture their dynamic behaviors using a limited number of modes or states that usually change according to the applied circumstances. Some terminologies are frequently used to describe the FSM characteristics: state, transition, condition and … Read More


RAL, Lint and VHDL-2018

RAL, Lint and VHDL-2018
by Alex Tan on 06-11-2018 at 12:00 pm

Functional verification is a very effort intensive and heuristic process which aims at confirming that system functionalities are meeting the given specifications. While pushing cycle-time improvement on the back-end part of this process is closely tied to the compute-box selection (CPU speed, memory capacity, parallelism… Read More


RDC – A Cousin To CDC

RDC – A Cousin To CDC
by Alex Tan on 04-18-2018 at 12:00 pm

In a post-silicon bringup, it is customary to bring the design into a known state prior to applying further testing sequences. This is achieved through a Power-on-Reset (POR) or similar reset strategy which translates to initializing all the storage elements to a known state.

During design implementation, varying degrees of… Read More


Clock Domain Crossing in FPGA

Clock Domain Crossing in FPGA
by Alex Tan on 03-12-2018 at 12:00 pm

Clock Domain Crossing (CDC) is a common occurrence in a multiple clock design. In the FPGA space, the number of interacting asynchronous clock domains has increased dramatically. It is normal to have not hundreds, but over a thousand clock domains interactions. Let’s assess why CDC is a lingering issue, what its impact and the … Read More


Webinar: Fast-Track to Riviera-PRO

Webinar: Fast-Track to Riviera-PRO
by Bernard Murphy on 08-11-2017 at 7:00 am

Whether you’re right out of college, starting on your first design, a burn-and-churn designer thinking there must be a better way or an ASIC designer wanting to do a little prototyping, this webinar may be for you. It’s a fast start on using the Aldec Riviera-PRO platform for verification setup, run and debug, and more. There are … Read More


HW and SW Co-verification for Xilinx Zynq SoC FPGAs

HW and SW Co-verification for Xilinx Zynq SoC FPGAs
by Daniel Payne on 07-03-2017 at 12:00 pm

It constantly amazes me at how much FGPA companies like Xilinx have done to bring ARM-based CPUs into a programmable SoC along with FPGA glue logic. Xilinx offers the Zynq 7000 and Zynq UltraScale+ SoCs to systems designers as a way to quickly get their ideas into the marketplace. A side effect of all this programability and flexibility… Read More


FPGAs for a few thousand devices more

FPGAs for a few thousand devices more
by Don Dingee on 10-24-2016 at 4:00 pm

An incredibly pervasive trend at last year’s ARM TechCon was the IoT, and I expect this year to bring even more of the same, but with a twist. Where last year was mostly focused on ultra-low power edge devices and the mbed ecosystem, this year is likely to show a better balance of ideas across all three IoT tiers. I also expect a slew of … Read More


Case study illustrates 171x speed up using SCE-MI

Case study illustrates 171x speed up using SCE-MI
by Don Dingee on 10-12-2016 at 4:00 pm

As SoC design size and complexity increases, simulation alone falls farther and farther behind, even with massive cloud farms of compute resources. Hardware acceleration of simulation is becoming a must-have for many teams, but means more than just providing emulation… Read More


Up front phases improve CDC analysis

Up front phases improve CDC analysis
by Don Dingee on 09-19-2016 at 4:00 pm

Many tools find clock domain crossings (CDCs) in FPGA designs. Some don’t find the right ones since they don’t comprehend things like in-house synchronizer constructs. Some find too many based on misunderstanding intent, inaccurate constraints, and other factors that lead to noise.… Read More


Optimization and verification wins in IoT designs

Optimization and verification wins in IoT designs
by Don Dingee on 08-17-2016 at 4:00 pm

Designers tend to put tons of energy into pre-silicon verification of SoCs, with millions of dollars on the line if a piece of silicon fails due to a design flaw. Are programmable logic designers, particularly those working with an SoC such as the Xilinx Zynq, flirting with danger by not putting enough effort into verification?… Read More