xBuddy debug header pinout
I want to debug firmware running on the MK4 xBuddy board, and therefore need to connect an st-link V2 clone to the board. On the board there is a footprint with the label "debug" next to it, unfortunately unpopulated. However, there seems to be no pinout diagram or discription in the firmware repo, and there doesn´t seem to be a standard pinout for a STM32 debug header. I don´t want to blow up my board or my programmer so can someone please share the pinout here? I am mostly interested in the SWD pins: SWCLK, SWDIO and GND. RST would also be nice to have.
Also, what is the voltage tolerance of the pins, as it seems the st-link V2 clones do 3.3V on the data pins?
Best Answer by me:
attached are the schematics for the mk4. hope it helps!
RE: xBuddy debug header pinout
attached are the schematics for the mk4. hope it helps!
RE:
Yep, there it is: page 9, J21. Thanks very much, I didn't even think to check the prusa open source page... d'oh!
Edit: for anyone else reading this: do be careful, as pin 1 is on the bottom right on the PCB, opposite of the schematic