CCS/TIDA-010031: When motor speed reaches 80krpm-90krpm, it becaomes instability

Hi, 

The instability is from the wrong zero-crossing detection. For the different motors, we need tune the BEMF detection threadhold in s/w to tune the zero-crossing level. Please try to tune below data in s/w:

BEMF_THRESHOLD:  it means the zero-crossing detection level.

COMMUTATION_BLANK_TIME: it skips the wrong signal after commutation.

PWM_BLANK_COUNTS: It means sample time delay in order to avoid noise.

B.R

Hawken