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DRV11873EVM: BLDC motor won't run - Pulses 3 times and stops

Part Number: DRV11873EVM

I am trying to use this board to drive a brushless 3-phase dc motor. I am supplying the board with ~12V of power in and the power LED is on. The motor I am driving will pulse 3 times followed by a pause and then 3 more pulses. This pulsing pattern repeats indefinitely. Any idea as to why I can’t seem to get the motor to drive continuously?

 Power source: