#EBB42 pin alias isn't recognized.

13 messages · Page 1 of 1 (latest)

patent jetty
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Hi,

Just installed a EBB42 with the toolhead and klipper doesn't seem to recognize the pin-aliases as stated in the RatOS config.
The result being that klipper throws the infamous 'ADC out of range' error because the thermistor isn't recognized.

My expectation would be that the following config would rectify that:
[extruder]
sensor_type: PT1000
sensor_pin: e_sensor_pin

In reality the following config is needed and with it it works like a dream. Same goes for the configuration of all other parts of the toolhead. Extruder fan doesn't trigger, etc. but a manual config and it is fine.
[mcu toolboard]
serial: /dev/serial/by-id/usb-Klipper_stm32g0b1xx_btt-ebb42-12-if00

[extruder]
sensor_type: PT1000
sensor_pin: toolboard: PA3

Two configs are attached: config.txt is the 'before EBB42' config that worked without issue. The second is the config post-EBB42 with all pins manually set. The pin-config is commented out as i'm hunting an issue of my extruder massively overextruding which I why I'm trying going back to basics which caused my question.

Question is: What could be going on here?

urban cragBOT
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full cloak
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Assuming you have version 1.2 of the EBB42, you need to use the template and uncomment lines 262, 266, 283-284, and 287

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so klipper has no idea what MCU toolboard refers to

patent jetty
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I am a dumdum - I probably sanitized it months ago to make the config easier to read. 🤦‍♂️

Ofcourse it won’t find the alias if the reference to them isn’t there. That might fix the extruder shenanigans as well.

full cloak
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in general, I would not delete lines in the template

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moving them around is also a no-no

patent jetty
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I’m just gonna start clean slate and rebuild from there. Who knows what else I’ve done.

full cloak
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since ordering matters, later in the printer.cfg overwrites previous config values

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best of luck! Come on back if you run into more issues!