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New bench scope - Fnirsi 1014D, 7", 1GSa/s

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pcprogrammer:

--- Quote from: tunk on September 06, 2021, 05:08:12 pm ---And great thanks for your work on the 1013D.

--- End quote ---

Your welcome :)

About the hypothetical question, I guess it should be possible. In the hardware it is either dividing to a lower voltage or amplifying to a higher voltage. Have each step bring the required input range to full scale ADC range. In software the rest is easy.

Hydrawerk:
 8)

nctnico:

--- Quote from: pcprogrammer on September 06, 2021, 03:18:49 pm ---The scope has 7 ranges (0-6) that can be selected. 6 of them make actual changes in the hardware. You can hear the relays click. So it is only for the change from the one but lowest to the lowest that they use the digital zoom.


--- Code: ---const int8 *volt_div_texts[3][7] =
{
  { "5V/div", "2.5V/div", "1V/div", "500mV/div", "200mV/div", "100mV/div", "50mV/div" },
  { "50V/div", "25V/div", "10V/div", "5V/div", "2V/div", "1V/div", "500mV/div" },
  { "500V/div", "250V/div", "100V/div", "50V/div", "20V/div", "10V/div", "5V/div" }
};

--- End code ---

This is the settings lookup table I implemented in my version of the 1013D code, which uses the same hardware as the 1014D, to display the settings for the different probe magnification factors. The original code works with switch statements to get this done.

--- End quote ---
Late reply... My guess would be that this table is for a 1:10 probe. It wouldn't make sense to have a 500V/div setting because that would mean the scope could deal with several kV at the input (which it very likely can't). An upper limit of 50V/div is already high for a DSO.

pcprogrammer:
Also late :) Been away on a short vacation to visit family.

I thought the descriptive text would make it clear, but the table is for the three possible probe magnifications. The first row is for the x1 setting giving 5V/div to 50mV/div, the second row is for x10 setting giving 50V/div to 500mV/div and the last row is for x100 setting giving 500V/div to 5V/div.

If it is wise to use it with such a probe and apply 4000V for max screen usage is an other question :)

With the probe on 1x it is max 40V that can be displayed.

Dejan J:
Hi !
I am new on this forum. Today I received link from FNIRSI ( I joined their WhatsUp group) with
new firmware V3.0.
 File and description from it are attached.

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