New to Klipper, Display config error

General Discussion
1

Basic Information:

Printer Model: custom build
MCU / Printerboard: BTT Kraken mainboard
Host / SBC: Rasberry pi 3b+
klippy.log (334.7 KB)

klippy.log
I am new to klipper, this is a custom built printer using a BTT kraken board with a prusa mk3 display and getting the following error. I do have the [board_pins] defined in the .cfg, taken fron BTT’s config for this board.

Error: “pin EXP2_8 is reserved for < RST >”

TIA.

2

Your description does not match the Klipper log.
According to the log your error is:

Config error
Traceback (most recent call last):
...
pins.error: tmc virtual endstop requires diag pin config

The correct settings for sensorless homing are described in Sensorless Homing
In particular, you do not have the diag pin specified. See your board’s description for the needed information.

3

Ive already fixed that issue, the issue i am having is with the display cofig. i can clear the log and upload a new one. I think that may be the issue. Youre seeing an older error.

I did have that sensorless error at first but have since then solved those, just getting that kill_pin error. If i comment that line out, it works without issue.

edit: new log file uploaded.
klippy (5).log (94.2 KB)

4 
    # EXP2 header
    ...
    EXP2_7=PG6, EXP2_8=<RST>,
    ...

This means that the EXP2_8 is hardwired on this particular board to the NRST pin of the MCU and as such is not useable for any function of the display.

Or to put it otherwise: Due to the hardware design of the board you cannot use this pin for anything meaningful from the display.

5

I see, i was kind of thinking that would be the case, since this reset button is wired on the mk3 in a specific way. Just wasnt sure about it at all.

I guess commenting out the line is the way to go here, this display is temporary until i get bigger screen setup. Thanks for the help, ill mark as solved.

6

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