Author Topic: RIGOL DSO Software Utility w FFT, Level Grade, Float Accuracy Data Storage.  (Read 11319 times)

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Offline Mechatrommer

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(and pretty smoth rendering too, i expcted worse).
thats because you are sampling at slower rate 10MSps instead of earlier 25MSps. i calculate thats 60K points rendering there. your bitrate is 10Kbps you still can see the data if sampled at 100KSps (or 200K up to 1MSps for better fidelity). at lower sample rate, you can capture more packets compared to 10MSps sampling, and with the same view as the above picture, render on screen much faster (600 points @ 100KSps) ymmv...
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline zbyr

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I mean even if i select 200k points on screen it's still better than i expected, screenshot wasn't showing that, but i tried it,  sorry for misunderstanding, that was poor example, also you are right that i should try minimalize sampling rate of scope to my needs (that is only possible via setting memory size, and it's pretty rought).
« Last Edit: May 29, 2017, 07:41:03 am by zbyr »
 

Offline Mechatrommer

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..that i should try minimalize sampling rate of scope to my needs (that is only possible via setting memory size, and it's pretty rought).
i checked my ds1054z, yes you are right, changing sampling rate is not as easy as changing timescale alone (i thought it is), we have to reduce memory length as well. well its our scope limitation then.
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline whitevamp

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too bad this one doesn't have the ability to go over lan. 
 

Offline zbyr

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What do you think about calculating FFT using GPU?

http://docs.nvidia.com/cuda/cufft/
 

Offline Mechatrommer

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What do you think about calculating FFT using GPU?
http://docs.nvidia.com/cuda/cufft/
its hardware specific API i dont have access to...nice info nonetheless.. it seems ati radeon dont support FFT natively... btw i just uploaded ver 1.0.3 as nightly build link last night, you can select greater time/div setting with optimized drawing capability...
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 
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Offline zbyr

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I found a little bug, imho not very important: when selecting bigger set of data points slider don't show properly. I attached two screenshots, one with good slider and second with bugged.
 

Offline Mechatrommer

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I found a little bug, imho not very important: when selecting bigger set of data points slider don't show properly. I attached two screenshots, one with good slider and second with bugged.
yes i noticed that earlier and made the fix just after uploading the file last night. please redownload again i just uploaded the fix few minutes ago...
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline zbyr

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Haha, i hope they won't destruct forum with them.  ;D Yup, it is good now, by the way i can't figure out what changes option "data duration"
 

Offline Mechatrommer

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Haha, i hope they won't destruct forum with them.  ;D Yup, it is good now, by the way i can't figure out what changes option "data duration"
i'm not sure what you meant by "data duration"
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline zbyr

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Haha, i hope they won't destruct forum with them.  ;D Yup, it is good now, by the way i can't figure out what changes option "data duration"
i'm not sure what you meant by "data duration"

 

Offline Mechatrommer

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oh that. that setting will be used as text's and image's fps during playback. meaning, if you have texts or images data in your visadso file, during playback, the program will show the data in how many second "Data Duration" you set. text fps is defined and saved in file during the text creation, but image data doesnt support fps data, so images will playback at the currently set "Data Duration" menu setting fps, but text will playback at data duration set when it was created. fwiw...
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 
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Offline zbyr

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I have an idea about three additional features:
1) export current view as CSV
2) option to add time stamp in record mode (especialy in cont. single capture) so it could be used to data logging
3) add math channel
 

Offline Mechatrommer

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I have an idea about three additional features:
1) export current view as CSV
...
right click on data, you can export to CSV. you can import back to visadso (but different vertical scaling will be automatically calculated), and then you can trim the data in File->Chunk Editor... fwiw.. as the other features, i'll think about it ;D thanks for suggestion.
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline zbyr

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I have an idea about three additional features:
1) export current view as CSV
...
right click on data, you can export to CSV. you can import back to visadso (but different vertical scaling will be automatically calculated), and then you can trim the data in File->Chunk Editor... fwiw.. as the other features, i'll think about it ;D thanks for suggestion.

Yeah, i know that i can export whole capture and then trim, also i could trim it in matlab like i did till now, just operating with that large csv file is not that easy. That was just some of my thoughts about improve, user feedback ;D
 


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