V0. 021b mistake
0.021c ok
Added possibility to reset calibration values. (if a bad calibration occurs) Added notification of a faulty calibration if the offset cannot be set (only if there is some hardware problem, bad ad converter, missing ad converter, problem with the offset voltage setting)
Input divider calibration is enabled when the oscilloscope is turned on for the first time and baseline calibration is used.
Calling up the calibration of the input divider is possible only through the menu by resetting the calibration values. (or by deleting the data on the sd card where the configuration data is located. NEED SDCART READER No It can be done with a card stored in the oscilloscope. )After successful calibration of the input divider and switching off the oscilloscope, the data is written to the SD card. (Unless you change the burnt components on the input circuits, it will no longer be needed - that is, if you do not erase, do not replace the sd card)
If the calibration is started again, only the base level calibration will be performed. i.e. 0 is found. (What sometimes needs to be done)
By uploading the firmware, the calibration of the input divider DOES NOT CHANGE.