DSO Quad Logic analyzer application

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ozadr1an
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Re: DSO Quad Logic analyzer application

Post by ozadr1an » Mon Mar 26, 2012 8:02 pm

jpa wrote:
ozadr1an wrote: BMP and VCD are unreadable under windows.
What does this exactly mean? Do you get some error message when copying the files? Or do they just not open in your image viewer?
Hey jpa - Apologies, I thought from your previous description you were familiar with an issue.

When attempting to copy either of the files off of the MINIDSO drive under Windows 7 (x64) I get the error:
"Could not find this item. This is no longer located in I:\. Verify the files location and try again."
The file appears in directory listings, but with no preview thumbnail - but with a file size of 47kb.

I cannot delete the files either - Only way to 'clean up' the MINIDSO drive is to format it - again.

All images/files produced using the main firmware though seem to copy off fine. And I can also delete them .

jpa
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Re: DSO Quad Logic analyzer application

Post by jpa » Tue Mar 27, 2012 3:57 am

Does the program say "Wrote logic000.bmp successfully" or "Bitmap write failed"?

Freshman
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Re: DSO Quad Logic analyzer application

Post by Freshman » Tue Mar 27, 2012 5:24 am

For me it says that file was written sucesfully, but it is not readable for me either. I can see it on quad disk, see the filename, filesize, but can't read/copy it.

ozadr1an
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Re: DSO Quad Logic analyzer application

Post by ozadr1an » Tue Mar 27, 2012 1:53 pm

Freshman wrote:For me it says that file was written sucesfully, but it is not readable for me either. I can see it on quad disk, see the filename, filesize, but can't read/copy it.
Same here. The UI reports "succesfully written" for both file types - but I have the same symptoms described above.

Inventor
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Re: DSO Quad Logic analyzer application

Post by Inventor » Tue Mar 27, 2012 4:15 pm

Now I can read the files with DiskGenuis file restorer application.

ozadr1an
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Re: DSO Quad Logic analyzer application

Post by ozadr1an » Tue Mar 27, 2012 4:19 pm

Inventor wrote:Now I can read the files with DiskGenuis file restorer application.
Sounds like there might be some issue updating the filetable here for some reason then ?

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Re: DSO Quad Logic analyzer application

Post by jpa » Fri Mar 30, 2012 1:13 am

Hi,

New version is up on the site:
http://essentialscrap.com/dsoquad/LOGICAPP.HEX

Apparently Windows, usually so ignorant of filename case-sensitivity, refuses to read lower-case filenames from a FAT12 partition. I guess it is correct behaviour per the spec, but didn't notice the problem as the lower-case files worked fine on Linux.

ozadr1an
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Re: DSO Quad Logic analyzer application

Post by ozadr1an » Fri Mar 30, 2012 2:01 pm

thanks jpa works like a charm now :)

Found a 'bug', but its really only present during dumb user interaction :)

If you hit 'save file' while its still filling the buffer, it will start saving the file blocking until the buffer reaches 100%. It then reports written succesfully, but if you then press 'bmp' it starts saving, then crashes and produces a streaky LCD...

Not really an operational issue - but maybe it might be worth making it stop filling the buffer if the user hits 'save file' ?

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Re: DSO Quad Logic analyzer application

Post by jpa » Sat Mar 31, 2012 10:47 pm

ozadr1an wrote: Not really an operational issue - but maybe it might be worth making it stop filling the buffer if the user hits 'save file' ?
Hmm, I can't repeat your issue. Both BMP and VCD save fine even when the capture is still running. When did you buy your DSO Quad (maybe it is the processor revision issue again)?

It should be perfectly capable of capturing data while saving at the same time. But saving the VCD takes a long time because the write speed to the USB disc is only 25kB/s.

ozadr1an
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Re: DSO Quad Logic analyzer application

Post by ozadr1an » Sun Apr 01, 2012 11:01 am

Hmm.. I was able to reproduce it pretty consistently last night but today it doesn't play ball.

Let me keep investigating.

And I bought mine via a Seeed reseller in January, however it might be as old as August 2011 stock though. Hard to tell really I guess. Do the serial numbers correlate in anyway ?

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