I tested the EVM with internal microstepper control to drive a step motor.
when I choose slow decay, the waveform is shown below(green is the current, and red is Vout1-Vout2)
when I choose fast decay,the waveform is shown below(green is the current, red refers to Vout1-Vout2)
DRV8834 is using fixed-frequency PWM scheme to control the current.
I wonder why there is no PWM of Vout1-Vout2(voltage on the inductance of the motor) when the current is zero.
And why Vout1-Vout2(voltage on the inductance of the motor) rises and drops like a arc in slow decay mode when the current is zero?
