One week ago I tested the new ODrive 3.4 with one motor and with commands over USB/UART.
So was connected on the board : alim, M0, resistor, encoder, STlink, gpio 1 and 2 for UART. All was ok.
Yesterday I wanted to reiterate tests with the same configuration,firmware, programs but impossible to activate UART. However USB was operational.
Today I decided to try again with the last firmware but nothing and without explanation the microcontroller broke down : ARM is hot and the board cosumes 6W with nothing wired on.
I thing the microcontroller is dead and have to be changed. Something caused this issue but I don’t know what, apart to flash the ARM and to restart the ODrive many times I dont thing to have done « extreme operations”.