Temperature calculation for PT1000 not working

[KZ-Erge]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

In MAX31865.cpp the normalization to 100 ohm (line 464) should be done before line 453. Now if i use pt1000, it always reports 0 degree as line 453 only works for pt100.

Bug Timeline

No response

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

bugfix-2.1.x

Printer model

ENDER-5

Electronics

MKS-SBASE

Add-ons

MAX31865 board from adafruit, PT1000

Bed Leveling

UBL Bilinear mesh

Your Slicer

Cura

Host Software

SD Card (headless)

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

Edit: added config.zip
config.zip
_

[thisiskeithb]

Don't forget to include
A ZIP file containing your Configuration.h and Configuration_adv.h.

You failed to attach your configs.

[zeleps]

You're probably right, this was copied and refactored from the original adafruit library without too much thought. I'll try to fix and test it this weekend.

[thisiskeithb]

Closing since there’s now a PR to fix it: #24407

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.