Hi,
It appears from the schematics of the DRV8301-HC-EVM (rev D) that the external current sense amplifiers are connected such that positive current will cause a negative voltage waveform (that is, negative relative to the 1.65V baseline). However, the diagrams on page 17 of the "DRV830x Rev D. Hardware Quick Start Guide" shows it as the opposite (i.e. positive current makes a positive waveform at the amp output). Can you please confirm which one is correct?
thanks,
Guy.