Hi Chris,
I have upgraded to the DRV8301-69M kit and I have changed motors to a much higher speed, lower inductance motor.
I ran the new kit with the old motor using the same user.h and all worked well. I tried to characterize the new motor on the new kit and it won't characterize. I'm assuming I need to fix the user.h parameters but I'm not sure what to set the parameters to. Using lab02 the motor would spin fine on the initial identify run but would not spin on the second identify run.
My new motor has 7.5 mohms resistance from phase to neutral and 13 uH inductance from phase to neutral. I also tried to put these values in and run lab03a but the motor wouldn't spin at all. This motor can take up to 40 amps under load and spins almost 50,000 RPM under no load.