Hello Jayasree, There is a latest version of s2ibis2 available and can be downloaded from http://www.ece.ncsu.edu/erl/ibis/s2ibis3/s2ibis3.htm This version calculates the pullup and pulldown curves in the same way as s2ibis2. This issue has been brought up to our notice and we are looking into it. We will post a notice on this and the IBIS forum as and when a modified version is available. Thanks and Regards, Ambrish Ambrish K Varma akvarma@xxxxxxxx North Carolina State University ph(919)513-2015, fax(919)515-2285 -----Original Message----- Date: Thu, 27 Jan 2005 09:33:18 -0800 From: Jayasree Nayar <njy@xxxxxxxxxxx> Subject: Is there a latest version of s2ibis2 software to subtract both clamps from the pull up and pull down waveforms in an IBIS model Hi all, As per IBIS spec 4.0, the power and ground clamps need to be subtracted from the pull up and pull down waveforms. I am using the s2ibis2 version 1.1 and this takes into account only subtraction of one clamp (power clamp from the pull up curve and ground clamp from the pull down curve). Is there a latest version of the s2ibis2 software that subtracts both clamps from the pull up and pull down curves? If not is there any software or any method to subtract these other than doing manually to comply with the spec. Any help as soon as possible will be greatly appreciated. Thank you. regards Jayasree ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: http://www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: http://www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu