I have implemented a sensorless, six-step trapezoidal control with feed-back as zero crossing detection using back emf with the help of ADC on the nucleo-G431 board.The BLDC motor is A2212/13T, 1000 kV.Without a propellor, the motor is spinning, and speed is also changing.But with the propellor, the motor is stuck at starting, and it is not rotating.Give some suggestions on what could be the reason and what modifications need to be done on the firmware and software sides.
