[SI-LIST] Re: Cleaning up scope waveforms ==> Tristate removal ?
- From: Hermann Ruckerbauer <hermann.ruckerbauer@xxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 05 Jan 2011 08:14:22 +0100
Hello Doug,
this is definitely an interesting topic.
I would have one thing that might be an additional topic for
postprocessing scope waveforms.
For correlation purpose of a real application to my simulation I
captured several times in the past a scope shot of a long trace and
transferred this to my simulation environment.
As I was working mainly in memory busses I had the issues, that there
have been read, write and tristate mixed, so it is difficult to work
with this trace (e. g. generate an Eye Diagram out of the trace in my
Simulation environment).
Seperating Read vs. Write was possible by adjusting the testprogramm to
run only Writes, or a single Write and than only Reads. But the tristate
between burst can not be removed in the application.
We had some Matlab Code to remove the tristate out of the captured
trace, but it was not really working perfect. It is just difficult to
separate a Tristate from a real crossing.
I wonder if there is any code / tool out there that is capable of doing
this.
Thanks for any feedback!
Hermann
EKH - EyeKnowHow
Hermann Ruckerbauer
www.EyeKnowHow.de
Hermann.Ruckerbauer@xxxxxxxxxxxxx
Veilchenstrasse 1
94554 Moos
Tel.: +49 (0)9938 / 902 083
Mobile: +49 (0)176 / 787 787 77
Fax: +49 (0)3212 / 121 9008
schrieb Doug Smith:
> Hi All,
> Time for my next Technical Tidbit article, this time on cleaning up scope
> waveforms (reducing unwanted noise in the waveform).
>
> Technical Tidbit - January 2011
> Using Averaging to Cleanup Scope Waveforms
> This month's Technical Tidbit details one way of reducing noise in
> oscilloscope waveforms, averaging. Results and limitations are discussed.
> Abstract: Noise can contaminate oscilloscope waveforms for a variety of
> reasons. ESD generated noise is among the worst in this respect. The
> waveformaveraging function in many oscilloscopes can be used to minimize
> sometypes of noise in the waveform, especially ESD generated noise. Use of
> averaging for cleaning up scope waveforms is discussed as well as
> limitationsof the method.
> The link to the article is: http://emcesd.com/tt2011/tt010411.htm[1]
>
> Anyone going to CES in Las Vegas? I plan to arrive on Friday for Saturday
> andSunday. Chances of finding any particular person there by chance is
> minuscule as there are 2500 exhibitors and 120,000 people! It dwarfs the
> IEEEEMC Symposium. Good for consultants to attend though.
>
> Doug
> -- ------------------------------------------------------- ___ _ Doug Smith
> \/ ) P.O. Box 1457 ========= Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX:
> 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o |
> Email: doug@xxxxxxxxxx[2] \ _ / ] \ _ / Website: http://www.dsmith.org[3]
> -------------------------------------------------------
>
> --- Links ---
> 1 http://emcesd.com/tt2011/tt010411.htm
> 2 mailto:doug@xxxxxxxxxx
> 3 http://www.dsmith.org
> ------------------------------------------------------------------
> 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 technical documents are available at:
> http://www.si-list.net
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
>
> 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 technical documents are available at:
http://www.si-list.net
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
- » [SI-LIST] Re: Cleaning up scope waveforms ==> Tristate removal ? - Hermann Ruckerbauer
