Is it possible to run two LP-comparators on two separate pins?

[Eirik Nobuki Kosaka]

Hello

I was wondering if it is possible to run to separate LP-comparators on the PCA10001? I've taken a look at the example code for LP-comparator in the SDK, and i was a bit confused since there is the standard IRQhandler for it, and therefor not sure if I am able to make two.

[Stefan Birnir Sverrisson]

Hi

I think it is difficult to monitor two pins with LPCOMP. The LPCOMP can only monitor one pin at a time. The nature of LPCOMP is to generate an event when the voltage on a certain analog input pin crosses a certain voltage (proportion of the supply voltage). You must then monitor that pin continuously with LPCOMP in order to not miss when the voltage crossing happens.