Hi all,
Looking for some advice here on an STM8 board.
I have a new revision of the STM8 (XD-1000-V1.0) board that I can flash Emile666's firmware to just fine, but once flashed the temperature probe no longer works as it should instead it just counts up. I have four units and flashed two of them with the same results.
With both of the flashed units, a calibration with a 10.003ohm resistor results in the unit counting up from 25C until it hits 40C (about 20 minutes), it then oscilates between 40-42C indefinitely.
With one of the non-flashed units, the same resistor sits rock solid at 24.7 for over an hour without ever changing.
In troubleshooting, I have traced out the entire frontpanel (LCD) board and found it to match Emile666's exactly, despite the different IC package for the STM8. I have also traced the temperature probe to make sure the resistors were the same value on the backplane as Emil666's. Everything checks out.
Any ideas what would cause this?
My first thought is a floating input-- Do I need to have two probes attached?
Photos of the boards attached in case anyone is interested or has the same model.
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