UPD. I found old our device with ESP32-WROOM-32 (ESP32 chip's revision 1.0 ESP32-D0WDQ6) and add the cheapest 32768Hz crystal with two 22pf. Specifically soldered them all in violation of the requirements to check work, set using external 32kHz in menuconfig. Code initializes GPIO of ESP32 and afte...

Otherwise it seems to work great. This code is working fine for rtc external crystal selection, without building esp-idf library for arduino. Could you please confirm that it is working with your hardware setup, Or any mistake in this. Something to be aware of: [...] My newer boards built with ESP3...