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 Aldec Design and Verification

Posts Tagged ‘acceleration’

Aldec Verification Tools Implement the ASIC Verification Flow

Tuesday, May 10th, 2016

Aldec-Verification-SpectrumAldec has, over the last 30 years, established itself as the preferred provider of high-performance, cost-effective verification tools for use in proving out complex FPGA designs. As the logic capacity and capability of FPGAs have increased, however, the distinction between FPGA and ASIC design has narrowed. A modern FPGA verification flow looks very much like an ASIC verification flow.

Small and large fabless companies alike need a reliable verification partner that suits their budgets while still providing a high level of support. To answer the call, we at Aldec have extended our spectrum of verification tools for use in digital ASIC designs.

A Basic ASIC Verification Flow

Managing verification for ASICs requires a well-defined verification plan.  Efficient verification planning starts with functional and design requirements in which requirements are mapped to verification methods, scenarios, goals and metrics, coverage groups, and results. Mapping entails traceability throughout the project that must be well maintained so that changes in the requirements will seamlessly reflect potential changes downstream to the elements of the verification plan.

While traceability can benefit any design, it is mandatory for safety-critical designs regulated by standards such as ISO-26262 for automotive, IEC-61508 for industrial and DO-254 for avionics.

Acceleration-Ready UVM Webinar with Doulos and Aldec

Wednesday, April 6th, 2016


Doulos CTO, John Aynsley, and I will be presenting a free 1 hour training  webinar, Acceleration-Ready UVM, on Wednesday April 13th, 2016. Learn more in this guest blog by John Aynsley, excerpted from the Aldec Design and Verification Blog.

Acceleration-Ready UVM 

by Doulos CTO, John Aynsley

We hear that emulation is one of the fastest-growing segments in EDA right now, yet simulation still continues to be the main workhorse for functional verification, and SystemVerilog and UVM are everywhere you look. But how do you combine the two? How do you run a UVM-based constrained random verification environment alongside an emulator and get reasonable execution speed?


Many vendors have solutions, including Aldec with their HES-DVM™ emulator. Their solution is based on the Accellera SCE-MI standard, and in particular on SV-Connect, which is a function-based interface that uses the SystemVerilog DPI (Direct Programming Interface) to pass information between the host and the emulator. You partition your UVM drivers and monitors into two parts, a small proxy that remains on the host and a synthesizable implementation that goes into the emulator. That way, all of the low-level timing detail is removed from the UVM code running on the host and is placed in the emulator, where it belongs. The communication between the host and the emulator can be optimized to avoid the emulator being stalled while waiting for the slower UVM simulation running on the host.


Reprogrammable, reprogrammable, reprogrammable: What’s great about FPGAs!

Friday, January 22nd, 2016

I-loveFPGAsI like FPGAs. My first experience with an FPGA was my university final year project where I demonstrated BIST with four Xilinx© 3000 devices; this was before FPGAs had JTAG built in. Filling up these devices with ViewDraw schematics required many hours in front of a terminal.   Fast track to today’s advances such as Xilinx UltraScale and Vivado HLx, and I hope you would agree things have moved on quite a bit.


Amid all this changes, however, there are some things that have remained constant. Those are the three things that are great about FPGAs: they are reprogrammable, reprogrammable, and, they are reprogrammable!

So how is this capability utilized? Here are three examples:


Electronic products using FPGAs:

I think it is important not look at FPGAs as some poor cousin of an ASIC. This view is from the days of LSI Logic and Xilinx marketing battles, when FPGAs were used for mopping up “glue logic”. Today an FPGA provides a massively parallel programmable digital platform with a lot of silicon IP, such as high-performance interfaces. This capability is widely used by many industries now; it is not solely driven by the volume of parts. Today, you even find FPGAs in consumer products.


Emulation: Thinking outside of the Big Box

Tuesday, September 22nd, 2015
fpga_base_emulation_bIndependent FPGA Consultant, Doug Amos, has been working in programmable logic and FPGA for over 30 years. He did his first programmable logic design in the mid-80’s (around the time Aldec was born), and since then has designed or supported countless FPGA and ASIC designs.
We’ve been pleased to work with Doug over the past several months, to help tell the story of Aldec’s advanced hardware emulation and SoC and ASIC prototyping solutions. Here is a excerpt from Doug’s recent guest blog:

There’s no question; verification is a massive time drain in SoC and other chip design projects. For many years, those with deep enough pockets have turned to so-called “Big Box” emulators in order to recover some of the time lost on RTL simulation, but what about the rest of us? Is there another way to accelerate verification and reduce our overall project schedule? Yes there is; and at Aldec they call it FPGA-based Emulation.

“FPGAs; aren’t they just for prototyping?”

Sure, FPGAs are the fastest platform for prototyping, but we can also harness that speed into our verification environment, then we can achieve runtime performance 2x to 5x faster than traditional “big box” emulation systems, and all at a fraction of the cost per gate per MHz. The most significant differences between FPGA usage in prototypes and in emulation is shown in table 1.


Leverage Hardware Acceleration for Faster Simulation

Wednesday, July 24th, 2013

Breaking the Bottleneck of RTL Simulation

Utilizing hardware acceleration in a System-on-Chip verification cycle can speed-up HDL simulation runs from 10-100x, while providing the robust debugging available from an RTL simulator. Acceleration (also referred to as Co-Simulation) combines the speed of FPGA-based prototyping boards, by offloading resource hungry modules into the FPGA, while non-synthesizable constructs of the testbench remain in the RTL simulator.


Register for Aldec Technical Sessions & Demos at DAC 2013

Thursday, May 16th, 2013

DAC2013This year’s Design Automation Conference (DAC) will be held in Austin, Texas.  If we survive the 70% humidity, our team looks forward to meeting you at Booth #2225 from June 3-5. Aldec HQ is located in Nevada just outside of Las Vegas… so we’re accustomed to more of a dry heat.

We invite you to register at to attend a technical sessions led by Aldec’s top engineers from all over the world. I can’t stress enough how important it is to pre-register since these sessions do fill up quickly. You’ll also get a free t-shirt when you attend one of our sessions – we’ve designed some pretty cool ones to give away this year.

Aldec has also teamed up with Agilent to deliver a DAC Insight Presentation on Wireless Algorithm Validation Wednesday, June 5, 2013 from 2:00-4:00pm. Learn more.


DownStream: Solutions for Post Processing PCB Designs
S2C: FPGA Base prototyping- Download white paper

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