Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development 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.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
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.
I am using MATLAB 2009a/2012a and MMSIM 10.11 and cadence virtuoso IC126.96.36.1990.11
I build a small low pass filter and ran the simulation in ADE and tried to read using MATLAB Spectre Toolbox. Its not working.
The error is attached as follows. I have referred to Matlabspectre.pdf and set the appropriate environments in matlab. Dont know why?
mydir =/home/njacob2/simulation/design1_rcresponse/spectre/schematic/psf>> nevin=cds_srr('mydir')??? Undefined function or method 'cds_innersrr' for input arguments oftype 'char'.Error in ==> cds_srr at 16 sig = cds_innersrr(dirname);
How is it different from creating a netlist of the schematic and creating .raw files which are to be read into matlab. Either of them doesnt work for that matter
If you are using 64 bit version of the tool then please set the LD_LIBRARY_PATH as mentioned by Andrew in the post you referred i.e. -
setenv LD_LIBRARY_PATH `cds_root spectre`/tools/lib/64bit:$LD_LIBRARY_PATH
but you need to keep in mind (as mentioned by Andrew) that if running on a 32-bit machine (or running 32 bit matlab), you'll need to miss out the 64bit part of the path. You may also refer to the following COS Solution for more details when trying to run the SpectreRF/Matlab toolbox on a 64 bit OS -
and see if this helps.
Also, I see one more thing but not sure if that is the case i.e. you are setting -
mydir = '/home/njacob2/simulation/design1_rcresponse/spectre/schematic/psf'
and then using, e.g.,
datalist = cds_srr(mydir)
or some other command like that. I see that you have used -
Please remove these single inverted commas and then try. I tested this at my end and gets the same error if I use these single inverted commas.
In reply to Ashish Patni:
1) MIne is 32 bit system
"getconf LONG_BIT" in terminal
2) tried without inverted commas. Not working
3) I dont have hostid/reference. Cannot access the document link you sent.
In reply to nevinalex1234:
What does "matlab -e" show?
In reply to Andrew Beckett:
matlab 2009a 2012a
matlab -e should show a whole load of environment variable settings - so not sure what your last post was trying to tell me. I don't need to know the versions you're using (you already said that) - but I want to see what the setup of your environment is.
I was not sure where to type it.
I typed it in the terminal and it gave the me the versions ONLY.
Maybe you have some wrapper around matlab? I'm assuming you're running on Linux, not Windows?
What do you get when you type "which matlab"?
which matlab gives
Yes im on linux
Maybe that is a script which intercepts the -e argument for its own purposes. In my case I am directly including the path for matlab:
UNIX> which matlab/export/home/apps/matlab_R2012a/bin/matlab
What I'm really interested in is what:
env | grep MATLAB
env | grep LD_LIBRARY
Try running "matlab -n" to see what that outputs...
env | grep MATLAB returns nothing
asf24lin2-28: env | grep LD_LIBRARYLD_LIBRARY_PATH=/cad/adi/apps/cliosoft/sos/linux_5/6.23.p3/lib/64bit:/cad/adi/apps/cliosoft/sos/linux_5/6.23.p3/lib:/usr/lib:/usr/libexec:/lib:/usr/lib/X12:/cad/adi/apps/gnu/linux/x86_64/5/lib:/cad/adi/apps/gnu/linux/x86_64/5/lib64ADIM_APPEND_TRACKER=MANPATH|LM_LICENSE_FILE|newPATH|CDSLMD_LICENSE_FILE|LD_LIBRARY_PATH|PERL5LIB|INFOPATH|PYTHONPATH
matlab -n same results as earlier (shows version)
Ah, it's possible you might be using a too old version of spectre - in the early MMSIM10.1 versions it had an issue with compiler compatibility. What does "spectre -W" return?
I would also expect you to have MATLABPATH set - otherwise it won't find cds_srr (it needs to be set to <MMSIMinstDir>/tools/spectre/matlab if using 32bit Matlab).
Where's your working directory? (what does "pwd" say?). I assume you're trying to run this from your workspace.
You've not copied cds_srr.m into your user area?
Have you tried setting MATLABPATH to the place I mentioned? That's what you're supposed to do.
By the way, that version should be new enough not to have the compiler incompatibility.