32k crystal pin
Posted: Mon Nov 21, 2016 2:04 am
esp, except XTAL_P and XTAL_N, has 32K_XP and 32K_XN pins for an external 32.768 kHz crystal oscillator. For what is it, when should I consider adding it?
Basing on http://www.esp32.com/viewtopic.php?f=2&t=496#p2139
and "ESP32 Technical Reference Manual - 3.2.2 Clock Source", this is intended as a clock source for the ULP processor