====== Physical verification using Calibre =====

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[ __[[vlsi:workbook:verification:calibre:files|Review of Calibre deck files]]__ ]
[ __[[vlsi:private:computing:tools:mentor:calibre|Installation notes (protected)]]__ ]


== Contents ==

   * Introduction
   * Documentation
   * Environment setup
   * Calibre DRC
   * Calibre LVS
   * Calibre xRC

   * Introduction
   * Environment setup
   * Design Rule Check (DRC)
   * Layout Versus Schematic (LVS)
   * Parasitic Extraction (PEX)
   * [[vlsi:workbook:analog:layout:calibre:files|Review of Calibre deck files]]


**Keywords:**


Google for 'calibre cadence'



Main web reference from //[[http://www.mentor.com]]//

[[http://www.mentor.com/products/ic_nanometer_design/verification-signoff/physical-verification/]]

===== Introduction =====


Some Calibre tutorials:

[[http://wiki.usgroup.eu/wiki/public/tutorials/calibretutorial]] \\
[[http://ideal.csie.ncku.edu.tw/joomla/ideal/class/power_aware_system_design/lab/Tutorial - Virtuoso Layout & DRC Verification.pdf]] \\
[[http://ideal.csie.ncku.edu.tw/joomla/ideal/class/power_aware_system_design/lab/Tutorial - Layout LVS & PEX with Calibre.pdf]]



extract a simple **sandwitch metal-to-metal capacitor** which is a technology-independent tutorial

Standard Verification Rule Format (SVRF)


RVE = Result Viewving Environment





\\
YouTube videos (just search for ''calibre drc'' or similar)

[[http://www.youtube.com/watch?v=oMZZ9q3f10A]]  \\
[[http://www.youtube.com/watch?v=SmMJ8Vblnx0]]  \\
[[http://www.youtube.com/watch?v=IsXyE4QuZbg&list=PLyPWwU20nfCa5oqTwfU9D7_IfS0MmcbM6]] \\
[[http://www.youtube.com/watch?v=qJqWxx7KKq4]]

===== Interfacing Calibre with Cadence tools =====

Calibre interfaces with **both Cadence IC (Virtuoso) and Cadence EDI (Encounter)**

Official references and videos from Mentor website:

[[http://www.mentor.com/products/ic_nanometer_design/calibre-integration/cadence]]

[[http://www.kip.uni-heidelberg.de/~dorn/misc/calibre.php]]


How to add Calibre menu in Cadence IC \\
[[http://www.edaboard.com/thread23011.html]]


===== Environment setup =====

<code>
cd ~/cadence/tech_dir
mkdir calibre
cd calibre
mkdir drc lvs pex
</code>


<code>
source /usr/local/config/mentor_config/Calibre_2010.rc
</code>

Ensure that in the ''.cdsinit_tech'' there is a line


<code>
setenv MGC_HOME /path/to/Calibre/installation/directory 
</code>


''/usr/mentor/calibre_2010''




====== Load Calibre interface into Cadence Virtuoso ======


[[https://communities.mentor.com/docs/DOC-3233]]


[[http://www.kip.uni-heidelberg.de/~dorn/misc/calibre.php]]



<code>
load(strcat(mgc_home "/shared/pkgs/icv/tools/queryskl/calibre.skl"))
</code>

or

<code>
load( strcat( getShellEnvVar("MGC_HOME") "/lib/calibre.skl" ))
</code>





====== Load Calibre interface into Cadence Encounter ======

===== Invoke Calibre from the command line =====

<code>
calibre -gui &
</code>

{{:vlsi:calibre_gui.png}}

===== Design Rule Check (DRC) =====

Create a Calibre DRC run directory ''runset'',




<code>
cd ~/cadence/tech_dir/calibre/drc
mkdir data rules runsets
</code>


<code>
cd rules
cp /path/to/technology/calibre/drc/rule/file drc.rules.default
</code>


**Layout Editor L => Calibre => Run DRC**


{{:vlsi:calibre_drc_interactive_window.png}}


Depending on your predefinite configuration a **Load Runset File** window may apperar at the Calibre startup

{{:vlsi:calibre_load_runset_file_window.png}}

Spiegare cos'e' un //runset file//

Modify this preferences through **Setup => Preferences..**

{{:vlsi:calibre_setup_preferences.png}} 


deselect the //Show Load Runset dialog// in the //Startup// tab and check the //Don't load a runset// option.

{{:vlsi:calibre_setup_preferences_no_runset_at_startup.png}}




Specificare il path completo del //rules file// del tipo

''~/cadence/tech_dir/calibre/drc/drc.rules''


e come //run directory// mettere

''~/cadence/tech_dir/calibre/drc/data''


To start the DRC left click the //Run DRC// button



Compare una **DRC Summary Report** window

===== Working with runsets =====



Save everything to a **runset file** with 

**File => Save Runset As...**


===== Layout Versus Schematic (LVS) =====


<code>
cd ~/cadence/tech_dir/calibre/lvs
mkdir runsets
</code>


<code>
cp /path/to/technology/calibre/lvs/rule/file calibre.lvs.default
</code>


**Layout Editor L => Calibre => Run LVS**



===== Parasitic Extraction (PEX) =====

Web resources:

[[http://www.bioee.ee.columbia.edu/courses/cad/html/extraction.html]] \\




**Layout Editor L => Calibre => Run PEX**

<code>
calibre -gui -pex &
</code>

{{:vlsi:calibre_pex1.png}}


{{:vlsi:calibre_view_setup.png}}


Fatto bene... //[[http://cmosedu.com/videos/cadence/calibre_pex.htm]]//



====== Generating HTML reports from Calibre RVE ======

[[http://www.youtube.com/watch?v=AmC_aRcIkA8]]



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Last update: [[pacher@NOSPAMto.infn.it|Luca Pacher]] - Apr 23, 2013
~~NOTOC~~