Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
we have a issue in merging 3 worklib( worklib_1,worklib_2,worklib_3 which has been created during compilation) during elaboration phase.
Command used for creating those worklib is:(top file - system.sv)
ncverilog -compile +ncaccess+c +notimingchecks -timescale 1ns/10ps +licq_ncv -l verilog1.log -work worklib_1 -input ius.tcl -f verilog_1.f
ncverilog -compile +ncaccess+c +notimingchecks -timescale 1ns/10ps +licq_ncv -l verilog1.log -work worklib_2 -input ius.tcl -f verilog_2.f
ncverilog -compile +ncaccess+c +notimingchecks -timescale 1ns/10ps +licq_ncv -l verilog1.log -work worklib_3 -input ius.tcl -f verilog_3.f
Command used for elaboration is:
ncelab worklib_1.system -cdslib ../simh/INCA_libs/irun.lnx8664.10.20.nc/cds.lib -hdlvar ../simh/INCA_libs/irun.lnx8664.10.20.nc/hdl.var -snapshot system:snapshot
we are getting the below error
ncelab: *E,NOUNIT: Unable to find a unit named 'worklib.system' in the libraries.
can anyone help us in solving the above error by providing the proper solution
Without seeing what's in your *.f files it's not possible to give a precise answer. What I would say however is: try switching to the "irun" flow instead of calling ncverilog and ncelab separately. Secondly, you are using a very old release whihc is no longer supported. You may come across bugs that have been fixed in more recent releases.
I would suggest the following irun use model based on your example:
irun -c -access +c -notimingchecks -timescale 1ns/10ps -makelib worklib_1 -f verilog_1.f -endlib -makelib worklib_2 -f verilog_2.f -endlib -makelib worklib_3 -f verilog_3.f -endlib -top worklib_1.system
This handles making the library directories for you. You would then run the compiled design with "irun -R [-gui]".
FYI, the +licq_ncv and -input options will have no effect on your compilation command - these only apply to simulation.
In reply to StephenH:
thanks for ur reply...
Please find the example below.
file list verilog_1.f contains only one file named system.sv, file list verilog_2.f contain files named multiple.v and divider.v , file list verilog_3.f contains only one file named adder.vhd
module multiple(output cc,input aa,bb);
adder.vhd is a vhd file .
we tried with the command:
irun -v200x -c -access +c -notimingchecks -timescale 1ns/10ps -makelib worklib_3 -f verilog_3.f -endlib -work worklib_2 -f verilog_2.f -makelib worklib_1 system.sv -endlib
And now,we are getting following ERROR:
ncelab: *E,MULVHD: Possible bindings for instance of entity 'adder' in 'worklib_2.multiple:v' are: WORKLIB_3.ADDER:RTL . adder u_adder( |ncelab: *E,CUVMUR (multiple.v,3483|22): instance 'm1.u_adder' of design unit 'adder' is unresolved in 'worklib_2.multiple:v'.
It seems to be that the libraries worklib_3 and worklib_2 are not binded.Please provide the appropriate suggestion/solution for binding the libraries.
In reply to usha sudhagar:
I would recommend that you do not use multiple work libraries then. Verilog isn't really set up for this the way VHDL is, so in general it's best to compile all your Verilog / SV code into a single work library.
Try this command:
irun -c -access +c -notimingchecks -timescale 1ns/10ps -f verilog_1.f -f verilog_2.f -f verilog_3.f system.sv
By the way,"-access -c" only enables connectivity tracing acess into the design, you might want "-access +rc" so that you can probe signals into the waveform database as well.