I have a FRDM-MC-LVBLDC driver and I'm using it with FRDM KV-11z. I wanted to observe my pwm waveforms on Phase A,B and C output ports before I provide it as the input to my motor. The reason behind it is because I tried measuring them with the motor being connected and my BLDC driver MOSFET was damaged due to some issue. I didn't wanted to take risk this time so I using an oscilloscope first to check what type of waveform I'm getting first.
When I observe the waveform on the oscilloscope, the PWM frequency is accurate but the duty cycle is showing as 95% ON time. I'm using the basic SDK example "mc_bldc" , which has a duty cycle of 50% and no matter now many changes I do by changing the value of "FTM0->CONTROLS.CnV" , "FTM0->CONTROLS.CnV" and so on , it just doesn't change the duty cycle of the waveform.
So I wanted to know if it's possible to observe the waveforms or it's mandatory to connect it with a Motor to observe my waveforms. Any kind of guidance will be helpful