NRF52840 / Outputing LFCLOCK on a pin?

[Mickael]

Hi there,

I was wondering if there was an easy way to output the LFCLK from our 32k crystal on one of the GPIO pins of the NRF52840? 

Couldnt find anything in the Spec so I thought Id wask... 

Cheers,

Mickael

[haakonsh]

I'm afraid you cannot output the 32kHz LFXO onto a GPIO.

Another option is to share the crystal with another MCU, nWP011 - Sharing crystal with an MCU. 

A third option is to use an external oscillator that is shared among the devices you use.