SoftwareSerial problem with Pico

[monkeyfist]

Yeah, that baud rate is not correct. You might want to check the original post, it has more information.

Using a TMC2209 silent stepper motor driver with an arduino

Hello! I am trying to set up a TMC2209 silentstepstick driver with an Arduino Uno instead of the more commonly used main boards meant for 3D printers. There is next to no resources on how this should be done, and any testing I've done so far has yielded very different outcomes. Can anyone guide me on a simple setup and code just for me to start to understand how to run the driver with an Arduino Uno? As of now, my setup is to have the VM jumper and GND connected to a 12V power source, EN to p…

The code you posted was heavily modified from my original example. For example it only used the VACTUAL command to move the stepper, and its not particularly useful if you want to count steps.
And i had SpeedyStepper library included for the actual stepper controlling. Currently i would recommend using FastAccelStepper library for the actual stepper controlling. And i did not use software serial, as i'm using ESP32 boards.

This also seems weird to me:

 Serial.begin(11520);               // initialize hardware serial for debugging
  SoftSerial.begin(11520);           // initialize software serial for UART motor control
  TMCdriver.beginSerial(11520);      // Initialize UART

I think it initializes the software serial twice.

I think its taken from this example, where the software serial is only initialized once. But i don't use software serial so i don't know much about it.

teemuatlut/TMCStepper/blob/master/examples/Simple/Simple.ino