Processor frequency

[SC97]

Hi,

I wanted to know how to change the frequency from from 16Mhz to 64MHz which is processor frequency. I know the HFCLK is 16MHz but how to use the 64MHZ frequency.

Regards.

[Turbo J]

Simple rule: Nrf51xxx use 16 MHz, NRF52xxx chips run on 64 MHz MCU core  clock. There is no way to change that frequency.

The new nrf53840 run 64 MHz on the network core and can switch the application core between 64 and 128 MHz.