I checked the nrf52832 manual and found that both XC1 and CX2 are analog input pins for the 32Mhz clock pin configuration. The reference design for both uses 32Mhz crystals for connection. Due to the excessive frequency deviation of the 32Mhz crystal, I connected the OUT pin of the 32Mhz active crystal oscillator to the XC1 pin, leaving the XC2 pin floating(The VCC and GND of the oscillator have been correctly connected). The actual test shows that it is effective and very stable. It works normally for several days. My question is whether a 32Mhz active crystal oscillator can actually be used. Thank you