External Reference with Portenta H7

Hardware Portenta Portenta H7
1

Hello Arduino Community,

I'm trying to use an external reference voltage for my Arduino Portenta H7.
How to do that?
If I call analogReference(EXTERNAL) I get an error (EXTERNAL was not declared in this scope). It seems this function is not supported for the H7 (yet). Is it maybe possible to modify the registers directly?

Thanks for your help,
marolta

2

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