This paper presents why LEC (Logical Equivalence Check) is important in the ASIC design cycle, how to check it, and what to do when LEC is failing. We will explore a test case to see what happens if LEC fails – how to pinpoint the problem and what steps to take for resolving the same.

LEC. SETUP> echo $FOO. or. TCL_SETUP> puts $env(FOO) A user made wrapper script around lec could provide this feature too. -ts

Logic Equivalence Check, popularly known as LEC is one of the most important parts of the ASIC VLSI design. Formal verification techniques have been developed using mathematical proof rather than simulation or test vectors to provide a higher level of verification confidence on properties.

Jan 28, 2021 · do file commands. Invoke Conformal LEC inside Equivalence checking directory in non-GUI by using the command “lec –xl –nogui -color -64 -dofile counter.do”

Apr 1, 2010 · Conformal Logic Equivalence Checking (LEC) This tutorial provides a quick getting-strated guide to Cadence Conformal logic equivalence checking. The basic flow is to input both an RTL netlist and a synthesized netlist and then have …

These sample dofiles are in the "web interface" documentation. You can access them with "set web on" and then open the browser URL in PC or linux. The WI also has a good document on verifying DC netlists. Look for "LEC Verification". The WI has a lot of really good documents and I find them really useful. Thanks for providing me the basic flow.

Oct 3, 2011 · Do file is nothing but your own way of generating the comamnds. 1. Set the log file. 2. Read the .lib. 3. Read the golden and revised files. 4. Set the mapping rules. 5. Compare. 6. write the reports. If you have automated flow for generating do file …

When I setup the design I got the message like $ modules are output for Hierarchial do file yet the do file is not created. What may be the reason? I just used a simple verilog design. Make sure to use "write hier_compare dofile -run_hier" when running "run hier_compare". They work together.

1. Understanding LEC basic interface (modes) and command format. 2. Setup environment for simple equivalence checking task. 3. Run LEC in shell mode / script mode. Related Files : In this Lab, we intend to perform equivalence checking between Verilog designs from your HW, which are written and generated by yourselves before. These mandatory ...

formal verification environment from cadence. Contribute to davideschiavone/Conformal-LEC development by creating an account on GitHub.