Conformal and Formality are both formal equivalence tools – they check that two circuit descriptions are functionally the same. They both have. 2, Synopsys Inc. introduced Formality, the industry’s first formal verification tool for equivalency checking of million-gate, system-on-a-chip (SOC) designs. This document contains a brief introduction to Synopsys Design Analyzer, Sysnopsys Formality, and. Cadence Conformal tools. You would.
|Published (Last):||11 April 2008|
|PDF File Size:||14.63 Mb|
|ePub File Size:||16.41 Mb|
|Price:||Free* [*Free Regsitration Required]|
My question is that if I were provided with two designs. All the programs later in the process that make changes to the netlist also, in theory, ensure that these changes are logically equivalent to a previous version. Thu Sep 17 Also, gate-level simulations are notoriously slow to execute, which is a major problem as the size of digital designs continues to grow exponentially. In theory, a logic synthesis tool guarantees that the first netlist is logically equivalent to the RTL source code.
Afterwards the verification goes on successfully. But when I insterted scan and clock gating, then they are not equality. My question is that if I were provided with two designs. All written in Formalith Is there any tool supported by synopsys or Cadence that can help me to syonpsys the equivalence of these two desig.
The big problem of formal verivication. Reading in an existing match-point file. Hi all, i’m currently working on synopsys formality. From the log-file entries below it has a lot more to go. Also, in real life, it is common for designers to make synopsyys changes to a netlist, commonly known as Engineering Change Ordersor ECOs, thereby introducing a major additional error factor.
When I trying to check formal between RTL and netlist not clock gating and not scan insertion then they are no mismatch.
The previous design takes 15hours, this design is going past 20 hours. I’m hoping that FM will see that the points have already been matched and not go off and spend time on them. Has anyone have any experience with this?
Once the logic designers, by simulations and other verification methods, have verified register transfer description, the design is usually converted into a netlist by a logic synthesis tool.
Variable is are being read asyncronously. Hello I try to run formality with parallel enable, I follow the instruction of synopsys document: The relation between assertions and Formal Verification. For synopsys formalityyou can use side-file This process is called formal equivalence checking and is a problem that is studied under the broader area of formal verification.
Conformal LEC constant constraint. We also need to check it’s timing is meet requirement as SDC constraint described.
An alternative way to solve this is to formally prove that the RTL code and the netlist synthesized from it have exactly the same behavior in all relevant cases. Electronic circuit verification Formal methods. But it should be possible to get it passing with Conformal as well. LEC is strict and wont support unsynthesizable fformality. I want to inquire the following software pricing for group license.
The main question in my mind is, why I need to verify the netlist. Glad that I asked you the question. Previous 1 2 Synopsye. Historically, one way to check the equivalence was to re-simulate, using the final netlist, the test cases that were developed for verifying the correctness of the RTL.
Synopsys formality –
What are the following software prices for group license? Formality failed to read.
Hi, I’m currenty trying to use synopsys Design Compiler to generate netlists for use with formality. This page was last edited on 4 Septemberat I am planning to study synopsys formalitybut I don’t know where I can get the tutorial materials.