It will be off topic but It is a small question (I am thinking it without know )should I create new topic for it? I am using motor driver but I am giving it power with Switch mode adapter. Basically I am using motors signal pins on PCB design. I am thinking to use GND. Is it a mistake ? Should I need to make AGND for it? RP2040 microcontroller doesn't have AGND.
Analog ground is only for analog inputs, so don't use that except for any analog sensors you are reading. You might get more useful advice if you post your intended circuit here as a vague description is open to many interpretations.
Okay thank you. When I design it I will post it.