Is there no one who can help me or give me some good documentation about how to setup the ADC for esp32 (without using the esp-idf framework).
The latest version of the technical reference is not complete at all about this.

In the meantime, I succeeded to get most of my ADC channels working by looking into the ESP-IDF framework. I saw that the FSM must be disabled too ( not documented at all )
However, channel 4 and channel 5 (XTAL32 pads) don't work yet.

Channel 4 always returns 1024 (10 bit)
Channel 5 always returns ...

Hi

Currently I'm trying to configure the ADC1 peripheral of the esp32. I notice that the most recent reference manual is not very consistent regarding ADC.
According to the documentation, I think I have set the registers correctly, but I get strange results.
For the configuration I also looked at ...