I managed to damage my unit while testing a car amplifier whilst being charged from the USB Port in the car. I opened the unit and found 3 traces burned up and channel 1 was showing a lot of noise. I traced the issue to being the main processor. Channel 2 still works so I would imagine that only the digital input is damaged.
I wired channel 1 to pin PA11 instead of PA0. Is it possible to modify the firmware to change the input? I would manager to salvage the other channel and restore it to fully working condition.
Dual channel oscilloscope
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