FreeLists / si-list / [SI-LIST] Re: Eye diagram measurement

[Scott McMorrow <scott@xxxxxxxxxxxxx>]

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

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Jim Antonellis wrote:

>Hi Scott, Jaaprakash,
>
>I looked into this a while back, and I thought using the HSPICE
>.MEASURE construct you did not have the ability to make multiple
>bit cell measurements. Could you please share the .MEASURE syntax
>that would make this possible as I had to resort to a post-proc
>spreadsheet last time I did it.... and would greatfully appreciate
>the "trick".
>
>Thx,
>Jim
>
>
>-
>Jim Antonellis   janton@xxxxxxxxxxxxx
>Sandburst Corp   www.sandburst.com
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>-----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 with
>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® is the registered service mark of
>Teraspeed Consulting Group LLC
>
>
>
>Jayaprakash wrote:
>
>  
>
>>Hi ,
>>
>>  Is it possible to measure eye diagram height and
>>width (not graphically) in HSPICE simulations?
>>
>> Thanks,
>>
>>Best regards,
>>   Jayaprakash.
>>
>>
>>
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