ZHCSH31B August 2017 – February 2018 DRV10987
See the DRV10983-Q1 Tuning Guide for the motor parameter measurement.
The motor phase resistance (RPH_CT) and BEMF constant (Kt) are two important parameters used to characterize a BLDC motor. The DRV10987 device requires these parameters to be configured in the register. The motor phase resistance is programmed by writing the values for Rm[6:0] (combination of RMShift[2:0] and RMValue[3:0]) in the Config1 register. The BEMF constant is programmed by writing the values for Kt[6:0] (combination of KTShift[2:0] and KTValue[3:0]) in the Config2 register.