NTC thermistor gain calculation for Board Manager

[DMeie.2]

Can anyone explain to me how to calculate the "gain" property for a "NTCThermistor" hardware variant?
The NTCs we use (NTCS0805E3103FMT) are not linear, so a "Thermistor gain in mV/°C" as mentioned in the wiki doesn't apply.

As a side note: The wiki says the property should be named "ntcThermistorGain" but inside the board configuration json this name is invalid and it is simply named "gain" instead.

[raptorhal2]

The gain is a logrithmic equation, as explained in this TI application note:

https://www.ti.com/lit/an/slua621.pdf

The B25/85 factor to apply is in the Thermister data sheet.

I used a non-linear function generation table to relate thermister resistance to temperature.

[DMeie.2]

Calculating a conversion table is not the issue, the NTC manufacturer provides a tool for that. However, the MCSDK doesn't seem to be using a converstion table.

What I don't understand is how to get the "gain" value, as its description ("mV/°C") implies a linear correlation.

[raptorhal2]

Its description implies a "smart sensor" with a built-in conversion table.

Using your NTC in a resister network of ref to NTC to fixed resister (or ref to fixed to NTC resister) to ground would provide a voltage tap between NTC and fixed. The mid-temperature gain in your application may be adequate.

Is the Board Manager software modifiable to include a function table?