Using the TMC2209-V1.2 manually

[chrisgray]

Hi, I want to connect a TMC2209-V1.2 to drive a stepper motor manually, no 3D printer or motherboard.

I looked through the IC manufacturer's datasheet for UART control and decided to go with Step mode instead.

Please can someone tell me:

• Are current limit resistors required externally and if so, how do I connect them?
• Are the internal current limit resistors in use by default, and what do I need to do to configure them if not?
• Can the logic supply be 3.3 VDC?
• Do I need supply decoupling capacitors?

[BIQU info]

Hello, if you have any product problems, please "submit a ticket" from BIQU Community, and choose it from the navigation. The professional technicians will soon settle down your confusion. Here is the link.

https://biqu3d.com/pages/submit-a-ticket

Have a nice day!