What is the Feedback Calibration Fault, and what causes it?
I have a system that's been running since January, I was running a motor validation yesterday - max torque for 0.5min, then 0 torque for 9.5min. After 3.5 hours I noticed my B phase current went to my full scale value of 410.7A, and my system faulted. I power cycled my system, and my MCU had the Feedback Calibration Fault. I tried another MCU, and it had the same fault. It seems something about the system is causing this fault. I replaced the system, and the fault went away.
That fault indicates that there is an issue with the hardware. I usually means that the value read by the MCU when the current is zero isn't approximately at the midpoint of the ADC voltage range.