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different temp readings after switch from MKS Gen L to SKR1.3

Posted by Schild0r 
different temp readings after switch from MKS Gen L to SKR1.3
October 06, 2019 07:36AM
Hey there, as the title says I recently switched my board to an SKR1.3 from an MKS Gen L

On the MKS Gen L I used Marlin 1.1.9
On the SKR1.3 I am using Marlin 2.0

On both versions I had the temp sensors defined as
#define TEMP_SENSOR_0 5 //Trianglelabs Thermistor Cartridge
#define TEMP_SENSOR_1 5 //Trianglelabs Thermistor Cartridge
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_3 0
#define TEMP_SENSOR_4 0
#define TEMP_SENSOR_5 0
#define TEMP_SENSOR_BED 1 //Standard Thermistor
#define TEMP_SENSOR_CHAMBER 0

On the MKS Gen L I got accurate temp readings (~20°C on all sensors on a cold machine)
Now on the SKR1.3 it will read 32°C for both extruders and 12°C for the bed
Also it will trigger the mintemp bed error two seconds after startup although the mintemp is set to 5°C...

Do you guys have any ideas why this is happening and how to fix it?

Thanks in advance for your help
Re: different temp readings after switch from MKS Gen L to SKR1.3
October 06, 2019 08:18AM
The thermistor number just points to a table. Did anyone replace the table values?

also you could compare table values between versions (they look identical to me)

Edited 1 time(s). Last edit at 10/06/2019 08:23AM by Dust.
Re: different temp readings after switch from MKS Gen L to SKR1.3
October 06, 2019 08:40AM
Quote
Dust
also you could compare table values between versions (they look identical to me)
Yep did that. They are the same
Re: different temp readings after switch from MKS Gen L to SKR1.3
October 06, 2019 09:40AM
okay found the flaw

Bed thermistor was faulty and apparently the temps shown in the first seconds after bootup are not correct
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