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MPiaz · 2018-11-30

Hello,On a low power application, using STM32L031x, I want to monitor a 3-level signal (24V, 5V, 0V) using COMP1 and COMP2.COMP1IN+ and COMP2IN+ connected to a voltage divider with two resistors (2M-220K)COMP1IN- connected to internal VREF, so COMP...

MPiaz · 2018-12-04

Jan,maybe you are right, but on board it's very difficult to isolate some pins and keep signals.And in datasheets there are poor COMPx's electical characteristics, in particular for leakage current and/or particular operating condition you named.Than...

MPiaz · 2018-12-02

Hello Jan,maybe the issue come from COMP1 electrical characteristics, but the purposes wereCOMP1 captures 24V to 5V and 5V to 24V edges (the input signal can goes to 0V, anywhere)COMP2 captures 5V to 0V and 0V to 5V edges/levelsso I expected correct ...

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Issue on Comparators inputs on STM32L031xx

Re: Issue on Comparators inputs on STM32L031xx

Re: Issue on Comparators inputs on STM32L031xx