hello
I USE DRV8424PPWPR TO drive DC Brushed motor in pwm mode.
The moto can only be turned forward, not reversed.
IN1=1 IN2=0 IS WORK OK
IN1=0 IN2=1 IS BAD ,
The cpu program uses the simplest level control in1=1,in2=0 forward rotation. and for out1,2 oscilloscopes observe square waves.
when in1=0,in2=1. Don't move. out1,2 oscilloscope observation no square wave, is clutter, indicating that there is no output signal at this time.
Both A and B drivers do this.
I don't know why.
My circuit PCB completely refers to the manual
Someone have any good suggestion?
Thanks!
Tom
