Other Parts Discussed in Thread: DRV8886
Hi, TI expert
A customer is using TI's DRV8886, and I have a question about it.
Q1) When using 1/8 Step among the microstepping settings below, when R453(10K) and R454(10K) are connected to 3.3V instead of in Z state to the Tri-Level input M0 pin, what mode does it operate in internally?
The output port of the MCU that controls M0 is open, and a 3.3V voltage divided in half is put in the M0 pin. However, during actual measurement, about 1V is measured as the DRV8886 internal resistance value, and the operation is operated in 1/8 Step, which was intended to be controlled.
Q2) At the time of this design, it is estimated that there was a design mistake while changing from 1/16 to 1/8. Before opening the most obvious resistors R453 and R454, I would like to inquire about what will happen.
Please check. Thank you.
