Hi Todd, That would depend on the size of your consulting budget (or on a change in my job description). =20 Though, I suspect the vendor of a tool supporting AMS might be willing to write such a model if it was made a contingency of a tool sale. =20 Gary -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Todd Westerhoff (twesterh) Sent: Wednesday, April 06, 2005 11:59 AM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Re: Eye diagram measurement - And leaves your teeth Shiny White Too! Gary, That sounds like a very interesting and valuable application. Are you able to contribute some code for this? Todd. Todd Westerhoff High Speed Design Group Manager Cisco Systems 1414 Massachusetts Ave - Boxboro, MA - 01719 email:twesterh@xxxxxxxxx ph: 978-936-2149 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D "Always do right. This will gratify some people and astonish the rest." - Mark Twain -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Pratt, Gary Sent: Wednesday, April 06, 2005 12:18 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Re: Eye diagram measurement - And leaves your teeth Shiny White Too! Of course, automated measurements is another benefit to AMS that hasn't received a lot of attention on the list. Creating an AMS receiver model that outputs eye measurements would be a very straightforward task. Actually, the device wouldn't have to be in the receiver, it could be attached anywhere in the circuit using [external circuit] in a "macro" fashion. =3D20 The model would do its calculations during the simulation providing incremental data during the simulation, and the final results immediately at the end of the simulation. Watching the results progress towards and asymptote may provide a feel for adequacy of coverage and simulation time requirements. Consisting of mostly sequential coding (which is partitioned to the event-driven solver), the measurement would have minimal impact on the overall simulation time. =3D20 -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Scott McMorrow Sent: Wednesday, April 06, 2005 10:22 AM To: Jim Antonellis Cc: edpc108@xxxxxxxxx; si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Re: Eye diagram measurement The trick is one set of measure statements to cover each bit cell, which results in 100's, 1000's or 10000's of measure statements for an entire simulated data stream. It can be done and implemented with a script that parses the excitation pattern, and then processes all of the measurement results. It is not pretty. It is an exceedingly slow post processing operation in HSPICE, when the time resolution is down in the 1ps range. Which is why other external waveform processing, as is done in the SiSoft tools, is more desireable. scott Scott McMorrow Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 (401) 284-1827 Business (401) 284-1840 Fax http://www.teraspeed.com Teraspeed(r) is the registered service mark of Teraspeed Consulting Group LLC Jim Antonellis wrote: >Hi Scott, Jaaprakash, > >I looked into this a while back, and I thought using the HSPICE=3D20=20 >.MEASURE construct you did not have the ability to make multiple = bit=3D20 >cell measurements. Could you please share the .MEASURE syntax that=3D20 = >would make this possible as I had to resort to a post-proc=20 >spreadsheet=3D20 last time I did it.... and would greatfully appreciate = >the "trick". > >Thx, >Jim > > >- >Jim Antonellis janton@xxxxxxxxxxxxx >Sandburst Corp www.sandburst.com >Office: 978.689.1669 >Cell: 978.618.4745 > >This message and any attachments are Confidential and may be = Legally=3D20 >Privileged. It is intended solely for the addressee. If you are not the >intended recipient, please delete this message from your system = and=3D20=20 >notify us immediately. Any dis-closure, copying, distribution or action >taken or omitted to be taken by an unintended recipient in reliance=20 >on=3D20 this message is prohibited and may be unlawful. > > > >-----Original Message----- >From: si-list-bounce@xxxxxxxxxxxxx >[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Scott McMorrow >Sent: Wednesday, April 06, 2005 11:12 AM >To: edpc108@xxxxxxxxx >Cc: si-list@xxxxxxxxxxxxx >Subject: [SI-LIST] Re: Eye diagram measurement > > >Jaaprakash, > >Yes. It can be done with .measure statements, or it can be done=20 >with=3D20 SiSoft's SiAuditor measurement capability. > >scott > >Scott McMorrow >Teraspeed Consulting Group LLC >121 North River Drive >Narragansett, RI 02882 >(401) 284-1827 Business >(401) 284-1840 Fax > >http://www.teraspeed.com > >Teraspeed(r) is the registered service mark of Teraspeed Consulting Group=3D20 >LLC > > > >Jayaprakash wrote: > > =3D20 > >>Hi , >> >> Is it possible to measure eye diagram height and width (not=3D20 >>graphically) in HSPICE simulations? >> >> Thanks, >> >>Best regards, >> Jayaprakash. >> >> >> >>Send instant messages to your online friends=3D20=20 >>http://uk.messenger.yahoo.com >>------------------------------------------------------------------ >>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 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//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 > > > > > =3D20 > ------------------------------------------------------------------ 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 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: =3D20 //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 =3D20 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