eez-open/modular-psu-firmware

Problem with DCP405 calibration

prasimix opened this issue · 1 comments

The new bug is introduced in firmware version 1.7.1: if the DCP405 has not been calibrated and an attempt is made to calibrate the current after voltage, an error will occur. A possible reason for this is that the set voltage for measuring current does not yet take into account the calibrated values, so the difference between the set and measured voltage exceeds the allowed tolerance.

dcp405 cal error

To avoid this problem it is necessary to make two calibrations: first the voltage and only then the current.

Another minor issue is that after exiting the calibration, the previously selected current range is not remembered: for example, if it was Best for me before, it will remain High after the calibration is completed.

Fixed