FNIRSI-1013D "100MHz" tablet oscilloscope

[Atlan]

First, it is necessary to have the input divider calibrated.  After switching on the oscilloscope, wait 3 minutes, perform base calibration.  And after turn on ONE channels of DC mod and measurement, bring a suitable signal to input. (eg rectangle or sine 5V peak to peak and 2.5V offset), press auto button. The option "dc shift calibration" is activated in the diagnostic menu. In the oscilloscope mode, the CTRL key is pressed. The menu to the right allows you to change the value of dc_shift_center, place the signal in the center. (You can check whether the signal is in the center using the cursors.)
The default value is 112, decreasing the value moves the signal up, increasing the value moves the signal down.
Change the value, press the CTRL button, press AUTOSET, the change of signal location will be reflected. If the signal is not placed symmetrically on the central axis. Repeat the whole process.
Then disconnect the signal from the oscilloscope!!!
With a value of 2, set the straight signal line to coincide with the channel cursor.
With a value of 3, set so that the value of Vmin = 0mV
Press end cal.

The option "dc shift calibration"  deactivated in the diagnostic menu.

[Magua]

With a value of 3, set so that the value of Vmin = 0mV


The value does not rise above 350!!! Therefore, -300 mv does not become less!

[Atlan]

The bottom image shows that the supplied signal does not have parameters that would require a DC shift.  Or the Auto set button was not pressed.  And with that, the oscilloscope didn't do things related to the DC shift.  I wrote a modified procedure where for values ​​2 and 3 it is necessary to disconnect the signal from the oscilloscope.  Limits management is probably needed.  I will upload the modified limits here tomorrow.

Other values ​​1 and 2. Do they have a sufficient range?  Don't they need to adjust the limits?

[Magua]

Other values ​​1 and 2. Do they have a sufficient range?

Yes, the limits are quite sufficient!

[Atlan]

try limit is 300 to 400

v0.025h

if I press END CALL, the recording goes to the sd card, and it is no longer possible to use RESTORE to restore older values ​​1-2-3

[Felipe Lacerda]

v0.025h

DC shift calibrate with sine 5V pkp 2.5V offset (1V/div scale)
parameter 1,2,3 OK 

but... noticed that when using scales below 1V (200mV/div) the cursor does not adjust to the center as in the 1V/div scale.
Is this what is expected?

I tried to calibrate with sine 1V pkp (200mV/div), but then the first parameter needs to be reduced to the lowest value (50) to center the cursor...
and this way the 2 parameters do not move the wave by any value, it does not work.

I hope my feedback is useful.

[Magua]

try limit is 300 to 400

v0.025h

if I press END CALL, the recording goes to the sd card, and it is no longer possible to use RESTORE to restore older values ​​1-2-3

Thank you 400 is enough...

[Atlan]

There are no source files for the Loader program?  Is there a programmer who programmed it?  I would like to make some changes there.

Every feedback is useful.

[pcprogrammer]

There are no source files for the Loader program?  Is there a programmer who programmed it?  I would like to make some changes there.

Every feedback is useful.

Member Sleo wrote it. See this post: https://www.eevblog.com/forum/testgear/fnirsi-1013d-100mhz-tablet-oscilloscope/msg4700534/#msg4700534

[Sleo]

There are no source files for the Loader program?  Is there a programmer who programmed it?  I would like to make some changes there.

Hello, Atlan! I'm here. Describe the changes you want me to make. Of course I have source files (Delphi).

[Atlan]

Add another card in which it will be possible to save data (calibration data) to a *.cal file, and to load data from a *.cal file.  This is data located on sector 708 of the SD card. Save the entire sector 708. Thank you

[Sleo]

Add another card in which it will be possible to save data (calibration data) to a *.cal file, and to load data from a *.cal file.  This is data located on sector 708 of the SD card. Save the entire sector 708. Thank you

Okay. You'll have to wait a few days because I'm on vacation now.

[Russell2024UK]

Hi Would it be possible to have on the Fnirsi -1013D a GND switch on each CH1 & CH2 within the Coupling area next to DC - AC please ?

[pcprogrammer]

Hi Would it be possible to have on the Fnirsi -1013D a GND switch on each CH1 & CH2 within the Coupling area next to DC - AC please ?

This makes no sense unless a hardware modification is also made.

[Russell2024UK]

oh i thought the switch would be as like DC / AC within the software .. just to gnd the the signal line .. Thanks Russ

[pcprogrammer]

oh i thought the switch would be as like DC / AC within the software .. just to gnd the the signal line .. Thanks Russ

The DC / AC option also has hardware involved. There is a capacitor in series with the input that is shorted with a FET when DC is selected.

[Russell2024UK]

oh ... Ok that makes sense sorry my fault... thanks anyway.

[Russell2024UK]

Hi Would it be possible to offer v0.025h as a bin file please ?

[pcprogrammer]

Hi Would it be possible to offer v0.025h as a bin file please ?

It is a .bin file. Just remove the rest of the file name.

This forum does not allow attaching a file with an extension .bin, so when wants to attach such a file they change the name by adding another extension.

[Russell2024UK]

Oh .. Thank you,  I Must be doing something wrong, have downloaded the Text file and removed the text name to .bin but still stays as text even when .bin at end !! & wont upload to the 1013D via loader software ..

[pcprogrammer]

Oh .. Thank you,  I Must be doing something wrong, have downloaded the Text file and removed the text name to .bin but still stays as text even when .bin at end !! & wont upload to the 1013D via loader software ..

What type of OS are you using, which loader software, etc.

Does the 1013D allow you to connect it to the computer from the original firmware?

[bffargo]

Assuming Windows OS:

1) Download file
2) Check windows explorer options and enable showing filetypes (is in different locations on different versions)
3) Rename file
4) Check extension column changed from Text document to BIN file

[Sleo]

1) Download file
2) Check windows explorer options and enable showing filetypes (is in different locations on different versions)
3) Rename file
4) Check extension column changed from Text document to BIN file

When using the loader program, you don't need to rename the file. Just click the "..." button, change the filter to "All(*.*)", then select the txt file. It will be opened as binary and will be written to the device correctly.

[bffargo]

True. I just prefer to rename them myself. But either way you can load the file regardless of the extension by switching the extension filter as Sleo suggested.

[Russell2024UK]

Hi The OS i use for the Fnirsi 1013D upgrades is Windows 11 using Fnirsi Firmware loader as per picture .. if i connect with my windows 11 laptop with past firmware's ( as .bin) via software yes all works well my current version is V0.025g..   I have tried to change the end of my text file to .bin but the type does not change unsure why .. HOWEVER - It works when i import as text file just change to all " " I now i have V0.025h Thank you so so Much Thank you all for your help