#Is my control board toast?

7 messages · Page 1 of 1 (latest)

junior vesselBOT
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Ahoi @uneven creek!
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uneven creek
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The log file will not reflect anything as I am using tmc2209 virtual endstops. When homing x or y, the axes x AND y will both move. previously, and for 3 years (wow) only one then the other would move.

I have disconnected and reconnected all wires to the control board, the motors etc - done a complete power down of the MCU and the raspberry pi to no avail.

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Here is part of the printer.cfg:

This file contains common pin mappings for the BIGTREETECH SKR mini

E3 v2.0. To use this config, the firmware should be compiled for the

STM32F103 with a "28KiB bootloader" and USB communication. Also,

select "Enable extra low-level configuration options" and configure

"GPIO pins to set at micro-controller startup" to "!PA14".

The "make flash" command does not work on the SKR mini E3. Instead,

after running "make", copy the generated "out/klipper.bin" file to a

file named "firmware.bin" on an SD card and then restart the SKR

mini E3 with that SD card.

See docs/Config_Reference.md for a description of parameters.

[include mainsail.cfg]

[stepper_x]
step_pin: PB13
dir_pin: PB12
enable_pin: !PB14
microsteps: 16
rotation_distance: 40
endstop_pin: tmc2209_stepper_x:virtual_endstop
#endstop_pin: ^PC0
position_endstop: 325
#position_min: -8
position_max: 325
homing_speed: 50
homing_positive_dir:true

[tmc2209 stepper_x]
uart_pin: PC11
tx_pin: PC10
uart_address: 0
run_current: 0.7
stealthchop_threshold: 999999
diag_pin: ^PC0 # Set to MCU pin connected to TMC DIAG pin
driver_SGTHRS: 60 # 255 is most sensitive value, 0 is least sensitive

[stepper_y]
step_pin: PB10
dir_pin: !PB2
enable_pin: !PB11
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC1
position_endstop: 0
position_max: 235
homing_speed: 50

[tmc2209 stepper_y]
uart_pin: PC11
tx_pin: PC10
uart_address: 2
run_current: 0.580
stealthchop_threshold: 999999

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I have changed stepper_y to use an endstop pin to see if that would do anythig... and ... no

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the new klipper logs would be useless as I have rebuilt klipper from scratch - and there is nothing in them.... The printer is happy to report that it is working fine... and acts as though both axes home - but they are incorrect - and one will not move exclusively from another. Any help greatly appreciated.

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In any case - here is the log - you will see that it does not display anything of value (I think)