Bob-- The HSpice manual tells you how to do this if you just do a search for "eye diagram." Basically what you will be doing is changing your time base (or X-axis) to be a waveform that repeatedly goes from 0 to 1ns, 0 to 1ns, etc. if 1ns is your bit cell width. Normally, the time base just goes from 0 to however long your simulation is run. You can create a new time base by setting up a parameter that goes from 0 to your bit cell width (usually your period) and back to zero again. I think the parameter the HSpice manual tell you to set up is 'TIME2.' The way to change your time base in Avanwaves is to select your oscillating waveform, whether it is the parameter TIME2 or whatever, and APPLY it (by clicking Apply) as the Current X-axis, which is TIME by default. The result is a waveform which, instead of varying with a constantly increasing time, varies with a repeating time, like on an oscilloscope. In order to see the eye best you may need to adjust the phase, which is also accounted for in the short tutorial in the HSpice manual. --Pat -----Original Message----- From: Bob Patel [mailto:whizplayer@xxxxxxxxx] Sent: Monday, October 08, 2001 6:47 PM To: si_list Subject: [SI-LIST] EYE diagram mode in HSPICE Hi! I had a question regarding Avanwaves the waveform viewer tool with HSPICE and that is how do I display an EYE diagram for continuous bit-stream of data? Thanks in advance Bob __________________________________________________ Do You Yahoo!? NEW from Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. http://geocities.yahoo.com/ps/info1 ------------------------------------------------------------------ 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: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //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 ------------------------------------------------------------------ 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: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //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