Hi! I am currently designing a motor driver using DRV8829's for microstepping a NEMA34 and a NEMA23 motor.. I was checking out the PCB designs provided in the application notes as well as the one for the EVM and I noticed there's no sign of the 1MOhm resistor sugested in the datasheet for the VCP pin, so I would like to know what is this resistor's function and if it's a must under certain circumstances.
I also noticed there are 2 capacitors attached to the second VM pin, that seems to me are used as a filter... but I'm not sure.
Thanks in advance for the repply!