FNIRSI-1013D "100MHz" tablet oscilloscope

[Evi]

Just upgraded from v0.021g to v0.025m.
I have to state out, that everything now satisfied me.

[Felipe Lacerda]

Whats this square for at the bottom of our 1013D  ?

The yellow line represents the entire acquired signal sample, and the square represents the section of the signal that is being displayed.

[pcprogrammer]

Whats this square for at the bottom of our 1013D  ?

That is to show where in the sample memory you are looking at the samples. Nice little feature Atlan came up with. (Stole from other scope makers  )

[Atlan]

The indicator is mainly there for this gadget.


Because the original fnirsi firmware is severely limited.

The ACQ menu allows you to change the sampling frequency, this displaying a larger part of the progress of, for example, an I2C signal.
The oscilloscope has a memory of 3000 samples in the FPGA. This indicator shows where you are in the sample memory. (I would like to complete it - it does not allow movement by dragging the finger in the lower part and does not match the size)

And I still failed to implement long memory - to use 3000 samples, although the stupid FPGA design can only use 1500, ie from the center where the trigger is.

mini update v0.025p change memory slider, move rtc text in menu

[Russell2024UK]

Atlan thanks    for the new  mini update v0.025p change memory slider, move rtc text in menu

[Sleo]

v1.1.3
Minor changes. Added buttons to write or clear boot mode byte. Added warning when FEL mode and disabled boot menu selected.
Clear button writes 0 to boot mode byte (PECO's FW and boot menu disabled).

[Russell2024UK]

Hi everyone!  Has anyone considered reaching out to Dave at EEVblog regards Our Oscilloscope 1013D about the updates & where it is now ie ? The new firmware and built-in clock have made a noticeable difference, and we’re all really pleased with the improvements. It might be worth suggesting that he test it again, especially after his earlier poor review a few years ago . What do you think?     

[Atlan]

update guide FNIRSI 1013D  alternative firmware v0.025p ANG v4 – kópia.doc

[Russell2024UK]

Is there a way to lock both cursors ( For time & Voltage individuality when required ) together on our Oscilloscope 1013D so they move in sync? This would allow for simultaneous movement, making it easier to measure across the rest of the signal displayed on the screen. Thanks 

[ECJ]

Showing wrong frequency in an 500hz square wave after using auto set in dc coupling. Switching to ac returns to normal.

https://youtu.be/fQD3lfvMDII

[Atlan]

Showing wrong frequency in an 500hz square wave after using auto set in dc coupling. Switching to ac returns to normal.

https://youtu.be/fQD3lfvMDII

I managed to simulate it, the trigger stepping edge. I'll look into it later.
I am moving the diagnostic screen to the main menu of the oscilloscope, it will take some time.

[Russell2024UK]

Hi In firmware version V0.025p ( 30th sept 2024) of the Fnirsi 1013D, the battery monitor icon appears to jitter, shake, or move when viewed. However, this doesn't occur in the original Fnirsi firmware, where the battery icon displays correctly without any noticeable movement. Unsure if anyone else has the same issue My video  https://youtu.be/9k56ZWK7waw

[ECJ]

Unsure if anyone else has the same issue My video  https://youtu.be/9k56ZWK7waw

Yes. It shakes here too. Applying hysteresis may be necessary when reading values.

[pcprogrammer]

Hi In firmware version V0.025p ( 30th sept 2024) of the Fnirsi 1013D, the battery monitor icon appears to jitter, shake, or move when viewed. However, this issue doesn't occur in the original Fnirsi firmware, where the battery icon displays correctly without any noticeable movement. Unsure if anyone else has the same issue My video  https://youtu.be/9k56ZWK7waw

Unsure if anyone else has the same issue My video  https://youtu.be/9k56ZWK7waw

Yes. It shakes here too. Applying hysteresis may be necessary when reading values.

    That is not an issue, that is a feature.   

In the original firmware there is some "special" handling done that I, at first, did not understood why. Due to different current drawn by the FPGA when sampling at different settings it adjusts the reading with some formula. Never looked at it again, and yes it could do with some simple averaging filter to make it a bit more stable. Maybe Atlan is willing to look at it, but I'm not.

Any way this is not new and described in this thread more then once.

[Evi]

Is it possible to display Battery Voltage on configuration page?

[ECJ]

   That is not an issue, that is a feature.   

Yes, it is quite common for fluctuations to exist when reading analog values ​​with sources that suffer instabilities. I've dealt with this many times and i believe that applying hysteresis is the most effective solution. If Atlan is interested, here is a simple example:

https://www.aranacorp.com/en/implementation-of-a-measurement-hysteresis-on-arduino/

[pcprogrammer]

Is it possible to display Battery Voltage on configuration page?

Not with great accuracy. The conversion is done with the key ADC found in the F1C100s. Is only 6 bits resolution. Should be enough but also needs filtering.

[Atlan]

v0.025q BETA: Moved the diagnostic menu from the USB screen to the main oscilloscope menu. Adjusted battery indication.

[Russell2024UK]

Hi Atlan, Moving the diagnostic menu from the USB screen to the main oscilloscope menu on the Fnirsi 1013D is a fantastic improvement! & Makes sense Works well - The adjusted battery indicator is also a great enhancement ( Number Value inside icon ) . Thank you for the excellent updates 

[Felipe Lacerda]

v0.025q BETA

nice work! thks a lot. 

[Russell2024UK]

Hi Atlan, I hope you're doing well!  I understand you have a busy schedule, but I wanted to ask if there's a way to lock both cursors for time and voltage together on our Oscilloscope 1013D. If they could move in sync, it would make it much easier to measure across the entire signal displayed on the screen. Thank you for your help! 

[Atlan]

All the graphics you see were programmed by hand. there is no tool for creating graphics like the NEXTION display, for example. So your request means to create a menu somewhere. And then implement the program for the function of touching the given menu and button, and then the function of locking the cursor. So a lot of work and time to test each function. You have to wait.

[Russell2024UK]

"Wow, Atlan, it sounds complex and like quite a bit of work, just as you mentioned  . I'm glad I now understand it better. It would be a great feature to have when you find the time—no rush, I'm happy to wait if it’s on your list. Thank you once again for all your hard work! 😊 P.S. thanks to PC, Sleo, and everyone else for turning it into such an awesome little oscilloscope!" 

[Atlan]

v0.025r move text in diag menu, fix set default boot

[Atlan]

Hi Atlan, I hope you're doing well!  I understand you have a busy schedule, but I wanted to ask if there's a way to lock both cursors for time and voltage together on our Oscilloscope 1013D. If they could move in sync, it would make it much easier to measure across the entire signal displayed on the screen. Thank you for your help! 

I started working on the menu for your cursors.
But it seems useless to me.
TRY this beta version: the left time cursor is locked with the right one, the right cursor has free movement.
It enables setting without complicated locking of the cursors and at the same time enables the setting of the cursors in particular and their joint movement as you wanted.

Add a switch between the previous setting and this new one to the diagnostic menu