CCS/BOOSTXL-DRV8305EVM: Wrong direction & weak current problems with running MN7005 KV115 BLDC motors

Hello, 

I'm using MN7005 KV115 BLDC motors with the TI c2000 micro controllers and  Code Composer Studio. 

I randomly face some problems from the initial stage of running the motor, which usually are temporarily solved by re-initializing the system. But I'd like to solve this issues to make the experimental setup stable:

 1) Motor direction randomly changes as it starts to move. Quite often, motor runs in reverse direction with the same setup.  (as soon as enable the system)

 2) Also, with the same setup and input command(constant current value), motor torque is significantly weak. 

I'm assuming that there is some commutation problem in the initiation process but cannot clearly say what it is and how to fix it.

If any of you have had the similar problems reported before or know any advice to provide, please let me know.

Thank you so much.