DRV8718S-Q1EVM: Measuring current at CSA1

Tool/software:

Hello Team,

On the DRV8718S-Q1 I'm trying to monitor the current with CSA, My motor is connected to the output NC/OUT1 & OUT1/OUT2 of the EVM.  I'm able to control the motor with a PWM in both directions. 

But the current sense, CSA1 does not seem accurate do you have any idea why ?

Thank you.