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test for ramps default Z_MIN_PROBE_PIN on stm32 #25524

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merged 3 commits into from
Mar 16, 2023

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ellensp
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@ellensp ellensp commented Mar 16, 2023

Description

Users are just enabling,#define Z_MIN_PROBE_PIN 32 without updating the pin
Most commonly stm32 based controllers (creality v4xx boards)
Add a check for setting Z_MIN_PROBE_PIN to 32 on a stm32

Benefits

Less confused users

@ellensp
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ellensp commented Mar 16, 2023

This first run is just to check for any false positives in the tests

@thinkyhead
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The error will give a false-positive if the pin is set to PC0.

@ellensp
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ellensp commented Mar 16, 2023

Well ill take your word for it that all stm32 PC0 is 32
No board currently set this pin to PC0

If this should change we can update this with a override at that ti

@ellensp ellensp marked this pull request as ready for review March 16, 2023 05:19
@thisiskeithb
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You could also leave Z_MIN_PROBE_PIN disabled & set it to -1 in the config with a clearer description to set it to a valid pin for the board.

@thinkyhead
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…or… maybe not PC0, but maybe some other pin. Seems hard to predict. The way pins are defined for STM32 is funky.

@ellensp
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ellensp commented Mar 16, 2023

either way... just something to stop users doing this..

I've seen this issue crop up at least 5 times recently.. (all creality users adding cr touch's to their machines) And that is just on discord. so its probably happening a lot more.

The most recent example

Discord User: "so I uncommented Z_MIN_PROBE_PIN 32"

I advised them to comment out this line (as it is not required as it is in the boards pin.h file. )

Discord User: "Yup Thanks, it was the pin 32
you solved my problem that took weeks off my life and googleing couldnt solve"

@ellensp
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ellensp commented Mar 16, 2023

This would need to be updated in all example Configuration files too. Where its not enabled, set it to -1

thinkyhead added a commit to MarlinFirmware/Configurations that referenced this pull request Mar 16, 2023
@thinkyhead thinkyhead merged commit 41b3409 into MarlinFirmware:bugfix-2.1.x Mar 16, 2023
@ellensp ellensp deleted the patch-2 branch March 16, 2023 05:46
shadow578 added a commit to shadow578/Marlin-H32 that referenced this pull request Apr 7, 2023
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---------

Co-authored-by: thinkyhead <[email protected]>
Co-authored-by: Hans-Christian Ebke <[email protected]>
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EvilGremlin pushed a commit to EvilGremlin/Marlin that referenced this pull request Apr 8, 2023
thinkyhead added a commit that referenced this pull request Apr 10, 2023
thinkyhead added a commit to thinkyhead/Marlin that referenced this pull request May 16, 2023
EvilGremlin pushed a commit to EvilGremlin/Marlin that referenced this pull request May 17, 2023
tspiva pushed a commit to tspiva/Marlin that referenced this pull request May 25, 2023
Andy-Big pushed a commit to Andy-Big/Marlin_FB_Reborn that referenced this pull request Jul 9, 2023
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3 participants