Test files needed for Rigol 1000B scopes

[scottprahl]

Just a few sets of saved waveforms created by a Rigol DS1074B, DS1104B, or DS1204B scope. Each set should contain

• file.wfm
• file.csv
• file.txt (created when saving CSV files with "Para Save" ON)
• file.bmp (screenshot is very useful)

Ideally these would cover a range of vertical and horizontal settings.

[KOLANICH]

Unfortunately I don't have access to this scope currently. It is not my scope, it belongs to my coworker.

[scottprahl]

No problem. Just keep this project in mind when you regain access to the scope. (or ask your coworker to upload a few files :-)

[JoetVer]

I have some sample files for DS1024B. Hope this helps. Can get more.
DS1204B.zip

[JoetVer]

Sample files for DS1202Z-E. Appears that scope won't write CSV files where exporting deep memory records, the CSV file has just what was on the screen. DS1202Z-E.zip

[JoetVer]

I have some information from old records about decoding timebase information for the DS1204B but not sure how reliable it is

|-----------------------+--------------------------+---------|
| bool | bTimeDelayed | 162 | 1 | symbol of TimeDelayed on |
|-----------------------+--------------------------+---------|
| int64 | s64TimeScale | 164 | 8 | Time Base ps |
|-----------------------+--------------------------+---------|
| int64 | s64TimeOffset | 172 | 8 | Time Offset |
|-----------------------+--------------------------+---------|
| float | f32TimeSaRate | 180 | 4 | Sample Rate |
|-----------------------+--------------------------+---------|
| int64 | s64TimeScaleStop | 184 | 8 | TimeScaleStop |
|-----------------------+--------------------------+---------|
| int64 | s64TimeOffsetStop | 192 | 8 | TimeOffsetStop |
|-----------------------+--------------------------+---------|

[scottprahl]

Please upload more info from your old records about the DS1204B.

I started a parser for the B variant, but I did not get very far. It seems that the DS1204B waveform format differs substantially from others.

[JoetVer]

Scott, That's going to make it tough. I will put up all I have, but I'm not sure of the providence of some of it (i.e. it's not attributed), but I'm sure we didn't write it all. I will search for online authors that match the code, if I find them then I can give them their due. Regards, Joe From: Scott Prahl ***@***.***> Sent: Thursday, 22 July 2021 3:20 PM To: scottprahl/RigolWFM ***@***.***> Cc: Joe Tusek ***@***.***>; Comment ***@***.***> Subject: Re: [scottprahl/RigolWFM] Test files needed for Rigol 1000B scopes (#1) Please upload more info from your old records about the DS1204B. I started a parser for the B variant, but I did not get very far. It seems that the DS1204B waveform format differs substantially from others. - You are receiving this because you commented. Reply to this email directly, view it on GitHub<https://aus01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fscottprahl%2FRigolWFM%2Fissues%2F1%23issuecomment-884662265&data=04%7C01%7Cjoe.tusek%40verico.com.au%7C807f8668772a4dc438e908d94cd04c1a%7C35a991074f864c09a9070bb27c1efda7%7C0%7C0%7C637625280280023658%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=5nxfvyLdcFWj5ziwmBr3pOvQbfUd3UsF1fzUhfGlN6g%3D&reserved=0>, or unsubscribe<https://aus01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAU5ZYCYWTYF4TRL3GJHFV23TY6S6LANCNFSM4LAQIIGA&data=04%7C01%7Cjoe.tusek%40verico.com.au%7C807f8668772a4dc438e908d94cd04c1a%7C35a991074f864c09a9070bb27c1efda7%7C0%7C0%7C637625280280033615%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=lhqeRZW3llBAcl66TL551vjci8YScbU2o4NJbd3BXRI%3D&reserved=0>.

[JoetVer]

I'm not sure if this is correct but it may shed light on the header.
DS1204B.xls

[scottprahl]

There is not much on the web about the Rigol .wfm formats. Nearly all the info used in this project is unattributed sources :-)

The header you provided will get me much farther along. I will see what I can do.

[scottprahl]

Thanks to your header file, we can now parse DS1204B wfm files! I have checked in code that successfully converts your DS1204B.wfm file to a file that is equivalent to the .csv file that you sent. See docs/1-DS1000B-Waveforms.ipynb for details.

[scottprahl]

It would be good if you submitted a few files with some channels disabled and with a 10X probe for additional testing. But we have basic functionality now.

[JoetVer]

DS1204B x10 c2-c4.zip
Only Ch4 has the setup saved (can redo if needed), hopefully is enough to cover the x10 for each channel. The probe setting for the unit range from 0.001 to 1000, but these files have just x10.

[scottprahl]

@JoetVer Rigol now correctly parses these files! One last test .wfm file is needed: one with channels 2 and 4 saved, using a 10X probe, and a non-zero voltage offset. One that file is correctly parsed, I will release a new version.

[JoetVer]

Great work, see file attached. DS1204B x10 c2+c4.zip

[scottprahl]

That file works. Released v0.9.0 yesterday. Thanks for your help.

I will look at the DS1202Z-E files eventually.

[JoetVer]

I loaded up a historical file that I was hoping to analyse but got an error
EOFError: requested 16384 bytes, but got only 8192 bytes. ZIP includes traceback.
Waveform_20202615220.zip

[scottprahl]

Fixed. I still don't really understand how data is stored. It seemed like all channels were saved in every wfm file, even if they were not enabled. I added logic so that only enabled channels will be read. This seems to fix the problem with the file you just uploaded.

[JoetVer]

Looks like every historical record I have for that scope is the same size.

[JoetVer]

Will you be releasing an update soon?

[scottprahl]

I was hoping you could test from the repository. However I just released v0.9.1 that might work for your old files.

[JoetVer]

Thanks. That one works.
I'll have to look up how to run from the repository.
Is it worth approaching Rigol directly about getting more header info? I can try if that is what you would like? Otherwise the people on EEVBlog could also be a good source of files.

[scottprahl]

Rigol has been surprising forthcoming with info. When I asked, they had no info about the B-series, though. Maybe if you ask, your rep will be able to find something.

[JoetVer]

I see on the Rigol site that the B's in the 1000's are marked as obsolete. The header info I provided was from 2013 and was all that I could get out of Rigol when the instrument was purchased.