MCU 'EBBCan' shutdown: Thermocouple reader fault EBB42 and PT1000B

General Discussion
1

Basic Information:

Printer Model: Custom 600x600x600
MCU / Printerboard: Fysetc Spider V1.1 and EBB42 V1.2
Host / SBC MKSPi
klippy (2).log (1.4 MB)

Hi,

My first question here, I’m attempting to configure a PT1000B connected to a EBB42.
The PT1000B is a 2 wire unit, which I have connected to the middle 2 pins of the 4 pin connector labeled for the PT100/PT10000 and set the dip switches as shown for the 2 wire PT10000, I’ve not installed the jumper next to TH0

[extruder]
step_pin: EBBCan:PD0
dir_pin: !EBBCan:PD1
enable_pin: !EBBCan:PD2
microsteps: 16
rotation_distance: 33.500
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: EBBCan:PB13
sensor_type: MAX31865
sensor_pin: EBBCan:PA4
spi_bus: spi1
rtd_nominal_r: 1000
rtd_reference_r: 4300
rtd_num_of_wires: 2
control: pid
pid_Kp: 21.527
pid_Ki: 1.063
pid_Kd: 108.982
min_temp: 0
max_temp: 320

The extruder section from printer.cfg is above, I don’t think sensor_pin: EBBCan:PA4 is correct as its not connected to anything, but I can’t set it to PA5 or PA6 without getting a different error.
I’ve tested the PT1000 and hav 1.1K Ohm at room temp. across the connector pins.

Looking at the picture I assume its connected to PA5 and PA6?
Any advise on what to do would be appreciated, also currently neither the heater or extruder motor are connected to the board if that makes any difference.

2

Nothing?
Am I missing something here, Is the question too obvious or too obscure?

3

Try

[extruder]
step_pin: EBBCan:PD0
dir_pin: !EBBCan:PD1
enable_pin: !EBBCan:PD2
microsteps: 16
rotation_distance: 33.500
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: EBBCan:PB13
# MAX31856 / PT1000
sensor_type: MAX31865
sensor_pin: EBBCan:PA4
spi_software_sclk_pin: EBBCan:PA5
spi_software_miso_pin: EBBCan:PA6
spi_software_mosi_pin: EBBCan:PA7
rtd_nominal_r: 1000
rtd_reference_r: 430
rtd_num_of_wires: 2
# MAX end
control: pid
pid_kp: 21.527
pid_ki: 1.063
pid_kd: 108.982
min_temp: 0
max_temp: 320
4

@Sineos thanks, it’s now working, I implemented the code above the only change I made to was:

rtd_nominal_r: 100

However (and this is a bit embarrassing) initially it was not working, so ok, lets check everything again and I found the dip switches were not where I thought I’d set them too. So, after fixing that it was all good.