Hi All
Bare with me here, quite new to everything…
I am trying to learn how to drive stepper motors with MicroPython using TMC2209 v3. So far I figured out how to drive it with steps… And then started learning PWM which lead me down the UART path (to set steps), this is where I’ve hit a wall.
So at this stage I am just trying to understand how to work with UART using TMC2209. I am using Pico and MicroPython (sys.version: 3.4.0; MicroPython v1.22.1 on 2024-01-05)
Response is always “None”. I’ve spent hours trying this and that and I am not having any luck. Any advice would be super appreciated.
Regarding wiring: I am using 1k resistor on GP0, both GP0 and GP1 are jumper-wired to TMC RX pin.
Thanks!
Bare with me here, quite new to everything…
I am trying to learn how to drive stepper motors with MicroPython using TMC2209 v3. So far I figured out how to drive it with steps… And then started learning PWM which lead me down the UART path (to set steps), this is where I’ve hit a wall.
So at this stage I am just trying to understand how to work with UART using TMC2209. I am using Pico and MicroPython (sys.version: 3.4.0; MicroPython v1.22.1 on 2024-01-05)
Code:
from machine import UART, Pinimport utimeuart = UART(0, baudrate=115200, tx=Pin(0), rx=Pin(1))uart.write(b"?V\n")utime.sleep(1)print("UART Response:", uart.readline())Regarding wiring: I am using 1k resistor on GP0, both GP0 and GP1 are jumper-wired to TMC RX pin.
Thanks!
Statistics: Posted by pinkerer — Fri Jan 26, 2024 3:57 am