Question about clock speed

[Illia Alexandrov]

Hello. I have a question about how to enable a 32 MHz crystal oscillator on a custom board? I have 32 kHz and 32 MHz quartz crystals on the board. I found the following config lines to enable 32 kHz: CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_50PPM=y, but as it turns out, it is enabled without them. Is there something like that that enables a 32 MHz crystal by default? I would be extremely grateful for your help.

Best regards

[Priyanka]

Hi,

The 32MHz should be automatically enabled by default whenever there is a requirement of high-accuracy timing, say, for the radio, peripherals or the CPU.

Is this not the case?

If so, please try enabling CONFIG_CLOCK_CONTROL_NRF_HFXO=y in your prj.conf

Regards,

Priyanka

[Illia Alexandrov]

I get attempt to assign the value 'y' to the undefined symbol CLOCK_CONTROL_NRF_HFXO