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DRV8320: DRV8320H Motor Hums but does not spin.

Part Number: DRV8320

Hi,

I'm having problems with DRV8320H.   Motor hums but does not spin. 

I am running with following settings..

* Supply Voltage 12.5V@24A.

* 1x PWM with MODE pin floating.

* PWM /  I/O controlling from Arduino.

* IDRIVE and VDS are pulled up to DVDD with 18K resistor.

* Motor resistance between each phase is 0.3 Ohm.

* Motor configured as Delta Winding. 

Thanks,