Hi, If you are thinking of upgrading the existing model then it depends on how complex is ur IO cell. How accurately you want to model it. For simple cells Input/Output cells there may not be any change between version2.0 and 3.2. Version 3.2 support modeling of complex cells more accurately. And always there is upward compatible available. You go through the cookbook for all the new features and keywords available for modeling. You can figure out which are more required for modeling your design accurately. Series and Series_switch models are the extra model_type updated in the version 3.2. But if u are generating models from scratch then its better generate with version 3.2 parser. Regards Shrikant GK NSC, Bangalore. Chetana Raghuwanshi wrote: > Hi, > > I am not aware if installing S2IBIS3 will enable me to generate the > 3.2 version IBIS models. Is that so ? > > Currently we use a script to generate IBIS models which are compliant > with 2.0 format. > > There is a request from one of the customers that they want 3.2 format > IBIS models. > > I would like to know how do I upgrade to 3.2 version ? > > Is there a document which would help me do it ? > > Best Regards > > Chetana > > ++++++++++++++++++++++++++++++++++++++++++++ > Chetana Raghuwanshi > CTO / Process & Library Technology > NXP Semiconductors India > NXP Block C, 4th Floor > MFAR Manyata Tech Park > Nagavara, Bangalore-560045 > Tel : +91 80 4024 7072 > ++++++++++++++++++++++++++++++++++++++++++++ > "Shrikant G Kadadevar" <Shrikant.G.Kadadevar@nsc.com> > > > *"Shrikant G Kadadevar" <Shrikant.G.Kadadevar@nsc.com>* > > 2008-01-31 05:11 PM > > > > To > > "Chetana Raghuwanshi" <chetana.raghuwanshi@nxp.com> > > cc > > ibis-users@server.eda.org, ibis@server.eda.org > > Subject > > Re: [IBIS] How do I upgrade the IBIS version ? > > > > > Hi, > > If you are asking on to how to install the S2IBIS3 too then plz refer > the below > > 1. Download the S2IBIS3 source code from the link below. > http://www.ece.ncsu.edu/erl/ibis/s2ibis3/s2ibis3.htm > 2. Make sure JAVA is installed in the Linux/Unix system. Please check > the specific version below. > 3. Follow the procedure given below to setup the tool. > Make sure u simulate all the files in order. > 4. First compiling use JAVAC file.java > 5. Also attached is the read me file for further help. > > *-----------------------------------------------------------------------------------------------------------------------------------------* > *Requirements: * To run s2ibis3, Java2, version 1.4.0 must be installed. > A minimum of Java 2 Runtime Environment(JRE), version 1.4.x. > must be installed to be able to run s2ibis3. Users could also > install Java 2 Standard Development Kit (SDK) version 1.4.x. > This is preferred over the JRE as the user could modify a java > file and recompile the code. Java JRE or SDK could be downloaded > free from http://java.sun.com > s2ibis3 assumes that the spice engines are set in the path > variables and ready for use. > > This version has been tested on HSpice ver 2001.2 > > *Compiling the Code :* If the code has to be compiled, it must be > compiled in the > following order -s2iHeader.java, s2iutil.java, > s2ispice.java, s2ianalyz.java, s2iParser.java and > s2ibis3.java. If this order is not followed, compilation > error could be experienced. > > *Running S2ibis3 * : sun/linux/unix > -To run s2ibis3, type the following on the command line: > % s2ibis3.csh -s2ibis3 buffer.s2i > where buffer.s2i is the s2i command file as discussed in > the s2ibis3.txt > -If there is a 'permission denied' error when running the > .csh file, change permissions by doing > % chmod 744 s2ibis3.csh > -If it is desired, s2ibis3 could be run from a different > directory from the installation directory by using the > '-root' switch with s2ibis3.csh as this example suggest: > % s2ibis3 -root ../../s2i_install_dir -s2ibis3 buffer.s2i > *------------------------------------------------------------------------------------------------------------------------------------------------* > > Regards, > Shrikant GK > NSC, Bangalore. > > > Chetana Raghuwanshi wrote: > > > > Hello All, > > > > I am using 2.0 version of IBIS, for generating IBIS models of IO cells. > > > > I need to upgrade the IBIS version to 3.2. > > > > Could you please tell me what do I need to do and how can I do it ? > > > > Best Regards > > Chetana > > > > > > ++++++++++++++++++++++++++++++++++++++++++++ > > Chetana Raghuwanshi > > CTO / Process & Library Technology > > NXP Semiconductors India > > NXP Block C, 4th Floor > > MFAR Manyata Tech Park > > Nagavara, Bangalore-560045 > > Tel : +91 80 4024 7072 > > ++++++++++++++++++++++++++++++++++++++++++++ > > -- > > This message has been scanned for viruses and > > dangerous content by *MailScanner* <http://www.mailscanner.info/>, > and is > > believed to be clean. > > > This README file describes the v1.1 distribution of s2ibis3. > > > This directory contains the s2ibis3 Java application. > > This utilitiy has been tested for Sun Solaris (5.7), Linux 2.4.18 and > Windows XP. > > To install S2IBIS3, simply unpack the zip file. This distribution > contains: > > README this file. > s2ibis3.csh Run this file to execute s2ibis3 for linux or unix > s2ibis3.bat Run this file to execute s2ibis3 for Windows > s2ibis3.txt An explanation of the command structure for the s2i file > and the > key features and differences of s2ibis3 as compared with s2ibis2. > curves.txt An explaination of how the various curves are obtained in > s2ibis3. > > modification_v1.1.txt An explanation of the changes made to s2ibis3 in > the latest revision (v1.1). > > java directory with java source code and class files. > The source code can be modified and recompiled using > Java sdk 1.4.0. > The source code consists of > 1)s2iHeader.java > 2)s2iutil.java > 3)s2ispice.java > 4)s2ianalyz.java > 5)s2iParser.java > 6)s2ibis3.java > > example example directory with 4 sub-dirs ex1, ex2, ex3 and ex4. > > ex1 Directory with a sample buffer.s2i file along with a buffer.ibs > file. it also has the buffer.sp, spectre.mod and hspice.mod files > to be able to run the example properly. > > ex2 Repeat of ex1 run with Hspice with a slightly better model. > > ex3 Directory with similar files as above and an extra netlist file > that has the netlist of the parallel_mosfet. This is needed for > demonstrating the working of the [Series MOSFET] keyword. > > ex4 Directory with tri-state drivers show how multiple Vdd's can be > used using the [Pin Map] keyword. This example uses HSpice. > > --------------------------------------------------------------------------------- > > Requirements: To run s2ibis3, Java2, version 1.4.0 must be installed. > A minimum of Java 2 Runtime Environment(JRE), version 1.4.x. > must be installed to be able to run s2ibis3. Users could also > install Java 2 Standard Development Kit (SDK) version 1.4.x. > This is preferred over the JRE as the user could modify a java > file and recompile the code. Java JRE or SDK could be downloaded > free from http://java.sun.com > s2ibis3 assumes that the spice engines are set in the path > variables and ready for use. > > This version has been tested on HSpice ver 2001.2 > > Compiling the Code : If the code has to be compiled, it must be > compiled in the > following order -s2iHeader.java, s2iutil.java, > s2ispice.java, s2ianalyz.java, s2iParser.java and > s2ibis3.java. If this order is not followed, compilation > error could be experienced. > > Running S2ibis3 : sun/linux/unix > -To run s2ibis3, type the following on the command line: > % s2ibis3.csh -s2ibis3 buffer.s2i > where buffer.s2i is the s2i command file as discussed in > the s2ibis3.txt > -If there is a 'permission denied' error when running the > .csh file, change permissions by doing > % chmod 744 s2ibis3.csh > -If it is desired, s2ibis3 could be run from a different > directory from the installation directory by using the > '-root' switch with s2ibis3.csh as this example suggest: > % s2ibis3 -root ../../s2i_install_dir -s2ibis3 buffer.s2i > > > windows > -most of the instruction for unix apply for windows users as well. > -To run s2ibis3, type the following on the command prompt: > % s2ibis3.bat -s2ibis3 buffer.s2i > -If the path variables are not set for java and the spice engines, > read instructions at http://java.sun.com/j2se/1.4.2/install-windows.html > on how to set path variables for windows. s2ibis3 would not run if > paths have > not been set properly. > [note] % is not needed to be inserted in the command line. > ----------------------------------------------------------------------------- > Known Problems and Bugs. > - > > ----------------------------------------------------------------------------- > > You are free to use, modify, and redistribute this software. See the > copyright legends contained > in the source code. > > If you have comments, bug reports, or suggestions for features, please > email them to me at: > akvarma@ncsu.edu > February '05 > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993Received on Thu Jan 31 04:40:47 2008
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