It was quite hotter than normal at the lab so I ran the auto calibration of the scope. And the manual determination of AWG offset mapping.
I added the values -45, -40, -30, -20, -20, -10, 0, 10, 20, 30, 40, 45 so that they also can be set very precisely. I used those voltages to measure the DSO adc response.
This makes it possible to translate/map DSO wave values to precise voltages.
The combination of setting a precise DSO offset combined with precise adc measurement and measurement window shifting will hopefully give the possibility to use the scope as a high precision tool. (At least for some duration). I'll continue under the assumption that the offset and adc measurement are independent of each other regarding errors.
The next and final step is to ensure we can superimpose precise voltages on the offset using arbitrary wave data.
If that is done, we should be able to create and measure a very accurate staircase ramp (lineair/continuous in voltage generation and measurement) from 0 to 1.0 V using 25 shifting windows.
Voltage OUT:0,0 mV; DSO: -0,4 mV
Voltage OUT:40,0 mV; DSO: 39,7 mV
Voltage OUT:80,0 mV; DSO: 79,6 mV
Voltage OUT:120,0 mV; DSO: 119,6 mV
Voltage OUT:160,0 mV; DSO: 159,7 mV
Voltage OUT:200,0 mV; DSO: 195,4 mV
Voltage OUT:240,0 mV; DSO: 240,0 mV
Voltage OUT:280,0 mV; DSO: 280,0 mV
Voltage OUT:320,0 mV; DSO: 320,0 mV
Voltage OUT:360,0 mV; DSO: 360,1 mV
Voltage OUT:400,0 mV; DSO: 400,1 mV
Voltage OUT:440,0 mV; DSO: 440,3 mV
Voltage OUT:480,0 mV; DSO: 480,3 mV
Voltage OUT:520,0 mV; DSO: 520,4 mV
Voltage OUT:560,0 mV; DSO: 560,4 mV
Voltage OUT:600,0 mV; DSO: 600,5 mV
Voltage OUT:640,0 mV; DSO: 640,6 mV
Voltage OUT:680,0 mV; DSO: 680,5 mV
Voltage OUT:720,0 mV; DSO: 720,7 mV
Voltage OUT:760,0 mV; DSO: 760,6 mV
Voltage OUT:800,0 mV; DSO: 800,7 mV
Voltage OUT:840,0 mV; DSO: 840,8 mV
Voltage OUT:880,0 mV; DSO: 880,9 mV
Voltage OUT:920,0 mV; DSO: 921,0 mV
Voltage OUT:960,0 mV; DSO: 961,1 mV
Voltage OUT:1000,0 mV; DSO: 1001,7 mV
Voltage OUT:-45,0 mV; DAC: -44,0 mV
Voltage OUT:-40,0 mV; DAC: -40,0 mV
Voltage OUT:-30,0 mV; DAC: -30,3 mV
Voltage OUT:-20,0 mV; DAC: -20,1 mV
Voltage OUT:-10,0 mV; DAC: -10,0 mV
Voltage OUT:0,0 mV; DAC: 0,0 mV
Voltage OUT:10,0 mV; DAC: 10,2 mV
Voltage OUT:20,0 mV; DAC: 20,4 mV
Voltage OUT:30,0 mV; DAC: 30,6 mV
Voltage OUT:40,0 mV; DAC: 40,4 mV
Voltage OUT:45,0 mV; DAC: 44,4 mV